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x402stock

payment-readyonlineimported

payment-ready until 2026-10-27

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment.

Call it x402 v2

x402 v2

Base URL
https://x402stock.xyz
Payment
x402 v2, header channel
$ curl -i 'https://x402stock.xyz/api/v1/compare'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 10 paid routes on x402stock.xyz

GET/api/v1/compareBase$0.05since 07-20
GET/api/v1/fdaBase$0.03since 07-20
GET/api/v1/fear-greed/regimeBase$0.02since 07-20
GET/api/v1/filing-searchBase$0.02since 07-20
GET/api/v1/inflationBase$0.02since 07-20
GET/api/v1/labor-marketBase$0.02since 07-20
GET/api/v1/market-pulseBase$0.03since 07-20
GET/api/v1/patentsBase$0.02since 07-20

2 more in Example 402 response

Prices as captured in the 402 response: median $0.02 across the 10 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/api/v1/compareCompare 2 to 3 US-listed stocks side by side (peer or watchlist comparisons). Pass a comma-separated list via `?tickers=AAPL,MSFT,NVDA` (1 to 3 symbols). Returns price and day change, market cap, P/E, EPS, revenue, gross and net margins, and dividend yield per ticker. Built for multiple stocks · for a single stock, `/api/v1/quote/{ticker}` is cheaper. From x402stock$0.05BaseUSDCheadersince 07-20
GET/api/v1/fdaFDA catalysts for a pharma/biotech/medtech company, from openFDA. Pass `?company=Medtronic` (required) plus `?limit=` (max 50). Returns `drug` (recalls + approvals) and `device` (510(k) clearances, PMA approvals, recalls) sections, each with recent items, match totals, and official FDA links. One call across 5 FDA datasets. From x402stock, a market & economic data API (x402, USDC).$0.03BaseUSDCheadersince 07-20
GET/api/v1/fear-greed/regimeThe combined market regime · one read fusing the stock Fear & Greed score and velocity, VIX, insider-buying sentiment, and net liquidity into a named regime (e.g. Mixed Signals) with severity and a suggested stance, plus how the S&P 500 historically performed after similar regimes (forward 5/22-day and 1/3-month returns and win rates). From x402stock, a market & economic data API (x402, USDC).$0.02BaseUSDCheadersince 07-20
GET/api/v1/filing-searchFull-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).$0.02BaseUSDCheadersince 07-20
GET/api/v1/inflationUS consumer price inflation from the Bureau of Labor Statistics: the latest headline CPI-U and core (ex food and energy) index levels with year-over-year percent change, plus recent monthly history. No ticker needed. Use for macro-aware analysis without leaving for a separate data source. Sourced from US BLS. From x402stock, a market & economic data API (x402, USDC).$0.02BaseUSDCheadersince 07-20
GET/api/v1/labor-marketUS labor-market headline indicators from the Bureau of Labor Statistics: the unemployment rate, labor force participation rate, total nonfarm payrolls, and average hourly earnings, each with its latest value and change from the prior month. No ticker needed. Sourced from US BLS. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.$0.02BaseUSDCheadersince 07-20
GET/api/v1/market-pulseUse to find the day's biggest movers in one call. Returns the top 10 gainers and top 10 losers by percent move with price, the current US market session status (open, closed, pre, or post), and the latest market news headlines. No ticker needed. Built for agents scanning what is moving today. From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key.$0.03BaseUSDCheadersince 07-20
GET/api/v1/patentsA company's US patents from the USPTO Open Data Portal, newest filings first. Pass `?company=Tesla` (required, matches APPLICANT name · subsidiaries/variants need separate queries) plus `?limit=` (max 100). Each carries patent & application numbers, title, filing & grant dates, status, applicant, inventors, and a link. From x402stock, a market & economic data API (x402, USDC).$0.02BaseUSDCheadersince 07-20
GET/api/v1/private-stocksLive valuations for private, pre-IPO companies · Anthropic, OpenAI, SpaceX, Anduril, Neuralink, Kalshi, Polymarket · in one call, via PreStocks Solana tokens backed 1:1 by SPV exposure. Per company: mark price and valuation, on-chain token price and implied valuation, the token's premium/discount, supply, and contract. The catalog's only pre-IPO feed. From x402stock$0.02BaseUSDCheadersince 07-20
GET/api/v1/treasury-yieldsThe daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock$0.01BaseUSDCheadersince 07-20

Payment evidence

402 payload captured at . Check evidence JSON · Measurement methodology.

First of 10 payloads captured by the monitor.

292 lines, scroll inside

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/compare",
    "method": "GET",
    "mimeType": "application/json",
    "description": "Compare 2 to 3 US-listed stocks side by side (peer or watchlist comparisons). Pass a comma-separated list via `?tickers=AAPL,MSFT,NVDA` (1 to 3 symbols). Returns price and day change, market cap, P/E, EPS, revenue, gross and net margins, and dividend yield per ticker. Built for multiple stocks — for a single stock, `/api/v1/quote/{ticker}` is cheaper. From x402stock"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "tickers": "AAPL,MSFT,NVDA"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "rows": [
              {
                "eps": 8.26,
                "name": "Apple Inc.",
                "price": 311.35,
                "ticker": "AAPL",
                "revenue": 451442000000,
                "pe_ratio": 37.69,
                "available": "ok",
                "market_cap": 4589945623560,
                "change_percent": -0.371,
                "net_margin_percent": 27.15,
                "gross_margin_percent": 47.86,
                "dividend_yield_percent": 0.35
              },
              {
                "eps": 11.82,
                "name": "Microsoft Corporation",
                "price": 450.24,
                "ticker": "MSFT",
                "revenue": 270000000000,
                "pe_ratio": 38.1,
                "available": "ok",
                "market_cap": 3346000000000,
                "change_percent": 5.45,
                "net_margin_percent": 36.1,
                "gross_margin_percent": 69.4,
                "dividend_yield_percent": 0.66
              }
            ],
            "as_of": "2026-05-30T07:00:00.000Z",
            "count": 2,
            "source": "x402stock",
            "tickers": [
              "AAPL",
              "MSFT"
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "properties": {
                  "tickers": {
                    "type": "string"
                  }
                },
                "additionalProperties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "count",
                  "tickers",
                  "rows"
                ],
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "rows": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "ticker",
                        "name",
                        "price",
                        "change_percent",
                        "market_cap",
                        "pe_ratio",
                        "eps",
                        "revenue",
                        "gross_margin_percent",
                        "net_margin_percent",
                        "dividend_yield_percent",
                        "available"
                      ],
                      "properties": {
                        "eps": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "name": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "price": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "ticker": {
                          "type": "string"
                        },
                        "revenue": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "pe_ratio": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "available": {
                          "type": "string"
                        },
                        "market_cap": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "change_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "net_margin_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "gross_margin_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "dividend_yield_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "count": {
                    "type": "number"
                  },
                  "source": {
                    "type": "string",
                    "const": "x402stock"
                  },
                  "tickers": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (9)

Captured payload 2 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/fda",
    "method": "GET",
    "mimeType": "application/json",
    "description": "FDA catalysts for a pharma/biotech/medtech company, from openFDA. Pass `?company=Medtronic` (required) plus `?limit=` (max 50). Returns `drug` (recalls + approvals) and `device` (510(k) clearances, PMA approvals, recalls) sections, each with recent items, match totals, and official FDA links. One call across 5 FDA datasets. From x402stock, a market & economic data API (x402, USDC)."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": 10,
            "company": "Pfizer"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "drug": {
              "recalls": {
                "count": 0,
                "items": [],
                "total_matched": 0
              },
              "approvals": {
                "count": 0,
                "items": [],
                "total_matched": 0
              }
            },
            "as_of": "2026-06-18T12:00:00.000Z",
            "device": {
              "recalls": {
                "count": 0,
                "items": [],
                "total_matched": 1250
              },
              "approvals": {
                "count": 1,
                "items": [
                  {
                    "url": "https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpma/pma.cfm?id=P160043",
                    "applicant": "Medtronic Vascular",
                    "pma_number": "P160043",
                    "trade_name": "Resolute Onyx Zotarolimus-Eluting Coronary Stent System",
                    "generic_name": "Coronary drug-eluting stent",
                    "product_code": "NIQ",
                    "decision_code": "OK30",
                    "decision_date": "2026-06-05",
                    "supplement_type": "30-Day Notice",
                    "supplement_number": "S094",
                    "advisory_committee": "Cardiovascular"
                  }
                ],
                "total_matched": 12772
              },
              "clearances": {
                "count": 1,
                "items": [
                  {
                    "url": "https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm?ID=K253656",
                    "decision": "Substantially Equivalent",
                    "k_number": "K253656",
                    "applicant": "Medtronic Sofamor Danek USA, Inc.",
                    "device_name": "OsteoCool RF Ablation System; OsteoCool 2.0 RF Ablation System",
                    "product_code": "GEI",
                    "date_received": "2025-11-20",
                    "decision_date": "2026-06-05",
                    "clearance_type": "Traditional",
                    "advisory_committee": "General, Plastic Surgery"
                  }
                ],
                "total_matched": 1576
              }
            },
            "source": "fda",
            "company": "Medtronic",
            "attribution": "Source: openFDA, U.S. Food and Drug Administration"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "company",
                  "limit"
                ],
                "properties": {
                  "limit": {
                    "type": "integer",
                    "default": 10,
                    "maximum": 50,
                    "exclusiveMinimum": 0
                  },
                  "company": {
                    "type": "string",
                    "maxLength": 120,
                    "minLength": 2
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "company",
                  "drug",
                  "device",
                  "attribution"
                ],
                "properties": {
                  "drug": {
                    "type": "object",
                    "required": [
                      "recalls",
                      "approvals"
                    ],
                    "properties": {
                      "recalls": {
                        "type": "object",
                        "required": [
                          "total_matched",
                          "count",
                          "items"
                        ],
                        "properties": {
                          "count": {
                            "type": "number"
                          },
                          "items": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "date",
                                "status",
                                "classification",
                                "product_type",
                                "product_description",
                                "reason",
                                "firm",
                                "recall_number",
                                "voluntary_mandated"
                              ],
                              "properties": {
                                "date": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "firm": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "reason": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "status": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_type": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "recall_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "classification": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "voluntary_mandated": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_description": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "total_matched": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      },
                      "approvals": {
                        "type": "object",
                        "required": [
                          "total_matched",
                          "count",
                          "items"
                        ],
                        "properties": {
                          "count": {
                            "type": "number"
                          },
                          "items": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "application_number",
                                "sponsor",
                                "approval_date",
                                "brand_names",
                                "active_ingredients",
                                "dosage_form",
                                "route",
                                "submission_class",
                                "review_priority",
                                "url"
                              ],
                              "properties": {
                                "url": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "route": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "sponsor": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "brand_names": {
                                  "type": "array",
                                  "items": {
                                    "type": "string"
                                  }
                                },
                                "dosage_form": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "approval_date": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "review_priority": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "submission_class": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "active_ingredients": {
                                  "type": "array",
                                  "items": {
                                    "type": "string"
                                  }
                                },
                                "application_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "total_matched": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      }
                    },
                    "additionalProperties": false
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "device": {
                    "type": "object",
                    "required": [
                      "clearances",
                      "approvals",
                      "recalls"
                    ],
                    "properties": {
                      "recalls": {
                        "type": "object",
                        "required": [
                          "total_matched",
                          "count",
                          "items"
                        ],
                        "properties": {
                          "count": {
                            "type": "number"
                          },
                          "items": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "date",
                                "status",
                                "classification",
                                "product_type",
                                "product_description",
                                "reason",
                                "firm",
                                "recall_number",
                                "voluntary_mandated"
                              ],
                              "properties": {
                                "date": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "firm": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "reason": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "status": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_type": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "recall_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "classification": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "voluntary_mandated": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_description": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "total_matched": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      },
                      "approvals": {
                        "type": "object",
                        "required": [
                          "total_matched",
                          "count",
                          "items"
                        ],
                        "properties": {
                          "count": {
                            "type": "number"
                          },
                          "items": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "pma_number",
                                "supplement_number",
                                "trade_name",
                                "generic_name",
                                "decision_date",
                                "decision_code",
                                "supplement_type",
                                "advisory_committee",
                                "product_code",
                                "applicant",
                                "url"
                              ],
                              "properties": {
                                "url": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "applicant": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "pma_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "trade_name": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "generic_name": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_code": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "decision_code": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "decision_date": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "supplement_type": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "supplement_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "advisory_committee": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "total_matched": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      },
                      "clearances": {
                        "type": "object",
                        "required": [
                          "total_matched",
                          "count",
                          "items"
                        ],
                        "properties": {
                          "count": {
                            "type": "number"
                          },
                          "items": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "required": [
                                "k_number",
                                "device_name",
                                "decision",
                                "decision_date",
                                "clearance_type",
                                "product_code",
                                "advisory_committee",
                                "date_received",
                                "applicant",
                                "url"
                              ],
                              "properties": {
                                "url": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "decision": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "k_number": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "applicant": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "device_name": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "product_code": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "date_received": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "decision_date": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "clearance_type": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                },
                                "advisory_committee": {
                                  "anyOf": [
                                    {
                                      "type": "string"
                                    },
                                    {
                                      "type": "null"
                                    }
                                  ]
                                }
                              },
                              "additionalProperties": false
                            }
                          },
                          "total_matched": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      }
                    },
                    "additionalProperties": false
                  },
                  "source": {
                    "type": "string",
                    "const": "fda"
                  },
                  "company": {
                    "type": "string"
                  },
                  "attribution": {
                    "type": "string"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/fear-greed/regime",
    "method": "GET",
    "mimeType": "application/json",
    "description": "The combined market regime — one read fusing the stock Fear & Greed score and velocity, VIX, insider-buying sentiment, and net liquidity into a named regime (e.g. Mixed Signals) with severity and a suggested stance, plus how the S&P 500 historically performed after similar regimes (forward 5/22-day and 1/3-month returns and win rates). From x402stock, a market & economic data API (x402, USDC)."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-06-05T00:00:00.000Z",
            "regime": {
              "id": "mixed",
              "name": "Mixed Signals",
              "action": "No historically significant setup detected. Monitor for signal alignment.",
              "severity": "neutral",
              "description": "No clear regime pattern. Signals are not aligned strongly in any direction."
            },
            "source": "x402stock",
            "current": {
              "vix": 15.4,
              "fg_zone": "greed",
              "fg_score": 69,
              "velocity": 5,
              "vix_level": "calm",
              "insider_label": "Sell Pressure",
              "insider_score": 34,
              "liquidity_label": "Expanding",
              "liquidity_score": 42
            },
            "history": {
              "episodes": 154,
              "avg_spy_1m_percent": 1.04,
              "avg_spy_3m_percent": 2.84,
              "win_rate_1m_percent": 70,
              "win_rate_3m_percent": 75,
              "avg_forward_5d_percent": -6.8,
              "avg_forward_22d_percent": -10.6
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "regime",
                  "current",
                  "history"
                ],
                "properties": {
                  "as_of": {
                    "type": "string"
                  },
                  "regime": {
                    "type": "object",
                    "required": [
                      "id",
                      "name",
                      "severity",
                      "description",
                      "action"
                    ],
                    "properties": {
                      "id": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "name": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "action": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "severity": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "description": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  },
                  "source": {
                    "type": "string",
                    "const": "x402stock"
                  },
                  "current": {
                    "type": "object",
                    "required": [
                      "fg_score",
                      "fg_zone",
                      "velocity",
                      "vix",
                      "vix_level",
                      "insider_score",
                      "insider_label",
                      "liquidity_score",
                      "liquidity_label"
                    ],
                    "properties": {
                      "vix": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "fg_zone": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "fg_score": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "velocity": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "vix_level": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "insider_label": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "insider_score": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "liquidity_label": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "liquidity_score": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  },
                  "history": {
                    "type": "object",
                    "required": [
                      "episodes",
                      "avg_forward_5d_percent",
                      "avg_forward_22d_percent",
                      "avg_spy_1m_percent",
                      "avg_spy_3m_percent",
                      "win_rate_1m_percent",
                      "win_rate_3m_percent"
                    ],
                    "properties": {
                      "episodes": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "avg_spy_1m_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "avg_spy_3m_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "win_rate_1m_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "win_rate_3m_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "avg_forward_5d_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "avg_forward_22d_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/filing-search",
    "method": "GET",
    "mimeType": "application/json",
    "description": "Full-text search across every SEC EDGAR filing since 2001. Find filings mentioning a keyword or exact phrase via ?q=, narrow by ?forms=10-K,8-K, ?ticker=, and ?startdt=/?enddt= dates, and cap with ?limit=. Returns each match's form, filer, date, and a link to the document. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC)."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "artificial intelligence",
            "forms": "10-K",
            "limit": 10
          }
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-06-01T15:00:00.000Z",
            "count": 1,
            "forms": "10-K",
            "query": "artificial intelligence",
            "source": "sec_edgar",
            "ticker": null,
            "results": [
              {
                "cik": "0000320193",
                "url": "https://www.sec.gov/Archives/edgar/data/320193/000032019325000123/aapl-20250927.htm",
                "form": "10-K",
                "filer": "Apple Inc. (AAPL) (CIK 0000320193)",
                "accession": "0000320193-25-000123",
                "description": "10-K",
                "filing_date": "2025-11-01",
                "period_ending": "2025-09-27"
              }
            ],
            "total_matches": 4821
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "q",
                  "limit"
                ],
                "properties": {
                  "q": {
                    "type": "string",
                    "minLength": 1
                  },
                  "enddt": {
                    "type": "string",
                    "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
                  },
                  "forms": {
                    "type": "string"
                  },
                  "limit": {
                    "type": "integer",
                    "default": 10,
                    "maximum": 100,
                    "exclusiveMinimum": 0
                  },
                  "ticker": {
                    "type": "string"
                  },
                  "startdt": {
                    "type": "string",
                    "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "query",
                  "forms",
                  "ticker",
                  "total_matches",
                  "count",
                  "results"
                ],
                "properties": {
                  "as_of": {
                    "type": "string"
                  },
                  "count": {
                    "type": "number"
                  },
                  "forms": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "query": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string",
                    "const": "sec_edgar"
                  },
                  "ticker": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "results": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "accession",
                        "form",
                        "filing_date",
                        "period_ending",
                        "filer",
                        "cik",
                        "description",
                        "url"
                      ],
                      "properties": {
                        "cik": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "url": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "form": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "filer": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "accession": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "description": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "filing_date": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "period_ending": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "total_matches": {
                    "type": "number"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/inflation",
    "method": "GET",
    "mimeType": "application/json",
    "description": "US consumer price inflation from the Bureau of Labor Statistics: the latest headline CPI-U and core (ex food and energy) index levels with year-over-year percent change, plus recent monthly history. No ticker needed. Use for macro-aware analysis without leaving for a separate data source. Sourced from US BLS. From x402stock, a market & economic data API (x402, USDC)."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "core": {
              "yoy_percent": 3.1,
              "latest_index": 326.18,
              "latest_month": "2026-04"
            },
            "unit": "index_1982_84=100",
            "as_of": "2026-04-01T00:00:00.000Z",
            "series": "cpi_u_us_city_average",
            "source": "us_bls",
            "history": [
              {
                "date": "2026-04",
                "value": 320.32,
                "period_name": "April"
              }
            ],
            "headline": {
              "yoy_percent": 2.7,
              "latest_index": 320.32,
              "latest_month": "2026-04"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "series",
                  "unit",
                  "headline",
                  "core",
                  "history"
                ],
                "properties": {
                  "core": {
                    "type": "object",
                    "required": [
                      "latest_index",
                      "latest_month",
                      "yoy_percent"
                    ],
                    "properties": {
                      "yoy_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "latest_index": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "latest_month": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  },
                  "unit": {
                    "type": "string"
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "series": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string",
                    "const": "us_bls"
                  },
                  "history": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "date",
                        "period_name",
                        "value"
                      ],
                      "properties": {
                        "date": {
                          "type": "string"
                        },
                        "value": {
                          "type": "number"
                        },
                        "period_name": {
                          "type": "string"
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "headline": {
                    "type": "object",
                    "required": [
                      "latest_index",
                      "latest_month",
                      "yoy_percent"
                    ],
                    "properties": {
                      "yoy_percent": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "latest_index": {
                        "anyOf": [
                          {
                            "type": "number"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      },
                      "latest_month": {
                        "anyOf": [
                          {
                            "type": "string"
                          },
                          {
                            "type": "null"
                          }
                        ]
                      }
                    },
                    "additionalProperties": false
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 6 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/labor-market",
    "method": "GET",
    "mimeType": "application/json",
    "description": "US labor-market headline indicators from the Bureau of Labor Statistics: the unemployment rate, labor force participation rate, total nonfarm payrolls, and average hourly earnings, each with its latest value and change from the prior month. No ticker needed. Sourced from US BLS. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-04-01T00:00:00.000Z",
            "series": "us_labor_market_headline",
            "source": "us_bls",
            "metrics": [
              {
                "unit": "percent",
                "change": -0.1,
                "metric": "unemployment_rate",
                "prior_value": 4.2,
                "latest_month": "2026-04",
                "latest_value": 4.1
              }
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "series",
                  "metrics"
                ],
                "properties": {
                  "as_of": {
                    "type": "string"
                  },
                  "series": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string",
                    "const": "us_bls"
                  },
                  "metrics": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "metric",
                        "unit",
                        "latest_value",
                        "latest_month",
                        "prior_value",
                        "change"
                      ],
                      "properties": {
                        "unit": {
                          "type": "string"
                        },
                        "change": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "metric": {
                          "type": "string"
                        },
                        "prior_value": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "latest_month": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "latest_value": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 7 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "30000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/market-pulse",
    "method": "GET",
    "mimeType": "application/json",
    "description": "Use to find the day's biggest movers in one call. Returns the top 10 gainers and top 10 losers by percent move with price, the current US market session status (open, closed, pre, or post), and the latest market news headlines. No ticker needed. Built for agents scanning what is moving today. From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": 10
          }
        },
        "output": {
          "type": "json",
          "example": {
            "news": [
              {
                "url": "https://example.com/news/market",
                "title": "Stock market today: indexes close at record highs",
                "tickers": [
                  "AAPL",
                  "MSFT"
                ],
                "publisher": "Example Wire",
                "published_at": "2026-05-29T21:00:00Z"
              }
            ],
            "as_of": "2026-05-30T07:00:00.000Z",
            "losers": [
              {
                "price": 0.1401,
                "ticker": "DAIC",
                "change_percent": -96.04
              }
            ],
            "source": "x402stock",
            "gainers": [
              {
                "price": 7.73,
                "ticker": "QH",
                "change_percent": 7453.19
              }
            ],
            "market_status": {
              "market": "closed",
              "after_hours": false,
              "early_hours": false
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "properties": {
                  "limit": {
                    "type": "integer",
                    "maximum": 50,
                    "exclusiveMinimum": 0
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "market_status",
                  "gainers",
                  "losers",
                  "news"
                ],
                "properties": {
                  "news": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "title",
                        "url",
                        "publisher",
                        "published_at",
                        "tickers"
                      ],
                      "properties": {
                        "url": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "tickers": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        },
                        "publisher": {
                          "type": "string"
                        },
                        "published_at": {
                          "type": "string"
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "losers": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "ticker",
                        "change_percent",
                        "price"
                      ],
                      "properties": {
                        "price": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "ticker": {
                          "type": "string"
                        },
                        "change_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "source": {
                    "type": "string",
                    "const": "x402stock"
                  },
                  "gainers": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "ticker",
                        "change_percent",
                        "price"
                      ],
                      "properties": {
                        "price": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "ticker": {
                          "type": "string"
                        },
                        "change_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "market_status": {
                    "anyOf": [
                      {
                        "type": "object",
                        "required": [
                          "market",
                          "early_hours",
                          "after_hours"
                        ],
                        "properties": {
                          "market": {
                            "type": "string"
                          },
                          "after_hours": {
                            "type": "boolean"
                          },
                          "early_hours": {
                            "type": "boolean"
                          }
                        },
                        "additionalProperties": false
                      },
                      {
                        "type": "null"
                      }
                    ]
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 8 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/patents",
    "method": "GET",
    "mimeType": "application/json",
    "description": "A company's US patents from the USPTO Open Data Portal, newest filings first. Pass `?company=Tesla` (required, matches APPLICANT name — subsidiaries/variants need separate queries) plus `?limit=` (max 100). Each carries patent & application numbers, title, filing & grant dates, status, applicant, inventors, and a link. From x402stock, a market & economic data API (x402, USDC)."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": 20,
            "company": "Tesla"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-06-18T12:00:00.000Z",
            "count": 1,
            "source": "uspto",
            "company": "Tesla",
            "patents": [
              {
                "url": "https://patents.google.com/patent/US12179682",
                "title": "BIASED BAG WRAP FOR RIMLESS STEERING WHEEL",
                "status": "Patented Case",
                "applicant": "TESLA, INC.",
                "inventors": [
                  "Kurt FISCHER",
                  "Aditya MOHANTY"
                ],
                "grant_date": "2024-12-31",
                "filing_date": "2024-02-28",
                "patent_number": "12179682",
                "application_number": "18687455"
              }
            ],
            "attribution": "Source: U.S. Patent and Trademark Office (USPTO) Open Data Portal",
            "total_matched": 1878
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "company",
                  "limit"
                ],
                "properties": {
                  "limit": {
                    "type": "integer",
                    "default": 20,
                    "maximum": 100,
                    "exclusiveMinimum": 0
                  },
                  "company": {
                    "type": "string",
                    "maxLength": 120,
                    "minLength": 2
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "company",
                  "total_matched",
                  "count",
                  "patents",
                  "attribution"
                ],
                "properties": {
                  "as_of": {
                    "type": "string"
                  },
                  "count": {
                    "type": "number"
                  },
                  "source": {
                    "type": "string",
                    "const": "uspto"
                  },
                  "company": {
                    "type": "string"
                  },
                  "patents": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "patent_number",
                        "application_number",
                        "title",
                        "filing_date",
                        "grant_date",
                        "status",
                        "applicant",
                        "inventors",
                        "url"
                      ],
                      "properties": {
                        "url": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "title": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "status": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "applicant": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "inventors": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        },
                        "grant_date": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "filing_date": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "patent_number": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "application_number": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "attribution": {
                    "type": "string"
                  },
                  "total_matched": {
                    "type": "number"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 9 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/private-stocks",
    "method": "GET",
    "mimeType": "application/json",
    "description": "Live valuations for private, pre-IPO companies — Anthropic, OpenAI, SpaceX, Anduril, Neuralink, Kalshi, Polymarket — in one call, via PreStocks Solana tokens backed 1:1 by SPV exposure. Per company: mark price and valuation, on-chain token price and implied valuation, the token's premium/discount, supply, and contract. The catalog's only pre-IPO feed. From x402stock"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-06-06T00:27:47.493Z",
            "count": 7,
            "venue": "prestocks",
            "source": "x402stock",
            "companies": [
              {
                "url": "https://www.prestocks.com/anduril",
                "name": "Anduril PreStocks",
                "supply": 14390.747182,
                "symbol": "ANDURIL",
                "logo_url": "https://www.prestocks.com/logos/anduril.png",
                "mark_price": 127.64,
                "description": "Anduril builds AI-driven defense systems, including autonomous drones and perimeter sensors. Their platforms integrate real-time data and computer vision to enhance situational awareness for military and border security applications.\n\nANDURIL is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 122.968,
                "mark_valuation": 103744703531,
                "contract_address": "PresTj4Yc2bAR197Er7wz4UUKSfqt6FryBEdAriBoQB",
                "implied_valuation": 99947316150,
                "token_premium_percent": -3.66
              },
              {
                "url": "https://www.prestocks.com/anthropic",
                "name": "Anthropic PreStocks",
                "supply": 9554.916082,
                "symbol": "ANTHROPIC",
                "logo_url": "https://www.prestocks.com/logos/anthropic.png",
                "mark_price": 1023.25,
                "description": "Anthropic is an AI research company developing Claude, a language model built with a strong focus on safety and interpretability. Their approach emphasizes ethical guardrails and transparent behavior to reduce the risk of harmful outputs while enabling sophisticated natural language capabilities.\n\nANTHROPIC is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 901.4462,
                "mark_valuation": 1676433761736,
                "contract_address": "Pren1FvFX6J3E4kXhJuCiAD5aDmGEb7qJRncwA8Lkhw",
                "implied_valuation": 1476877462885,
                "token_premium_percent": -11.9
              },
              {
                "url": "https://www.prestocks.com/kalshi",
                "name": "Kalshi PreStocks",
                "supply": 1476.997906,
                "symbol": "KALSHI",
                "logo_url": "https://www.prestocks.com/logos/kalshi.png",
                "mark_price": 604.24,
                "description": "Kalshi is a CFTC-regulated prediction market where users trade event contracts on real-world outcomes. Contract prices reflect implied probabilities for events across politics, economics, sports, and more.\n\nKALSHI is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 511.8646,
                "mark_valuation": 21708276177,
                "contract_address": "PreLWGkkeqG1s4HEfFZSy9moCrJ7btsHuUtfcCeoRua",
                "implied_valuation": 18389542280,
                "token_premium_percent": -15.29
              },
              {
                "url": "https://www.prestocks.com/neuralink",
                "name": "Neuralink PreStocks",
                "supply": 4995.999226,
                "symbol": "NEURALINK",
                "logo_url": "https://www.prestocks.com/logos/neuralink.png",
                "mark_price": 282.23,
                "description": "Neuralink develops implantable brain-computer interfaces designed to enable direct communication between the human brain and computers. Their technology aims to treat neurological conditions and eventually augment human capabilities.\n\nNEURALINK is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 300.1132,
                "mark_valuation": 53931079208,
                "contract_address": "PrekqLJvJ3qVdXmBGDiexvwUTF4rLFDa6HWS4HJbw9S",
                "implied_valuation": 57348355821,
                "token_premium_percent": 6.34
              },
              {
                "url": "https://www.prestocks.com/openai",
                "name": "OpenAI PreStocks",
                "supply": 2002.908181,
                "symbol": "OPENAI",
                "logo_url": "https://www.prestocks.com/logos/openai.png",
                "mark_price": 1527.04,
                "description": "OpenAI pioneers large-language models like GPT and DALL·E, enabling advanced AI applications. Their research emphasizes both cutting-edge capability and responsible deployment strategies.\n\nOPENAI is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 1331.9607,
                "mark_valuation": 1273031389432,
                "contract_address": "PreweJYECqtQwBtpxHL171nL2K6umo692gTm7Q3rpgF",
                "implied_valuation": 1110401674929,
                "token_premium_percent": -12.77
              },
              {
                "url": "https://www.prestocks.com/polymarket",
                "name": "Polymarket PreStocks",
                "supply": 4818.988067,
                "symbol": "POLYMARKET",
                "logo_url": "https://www.prestocks.com/logos/polymarket.png",
                "mark_price": 147.94,
                "description": "Polymarket is a decentralized prediction market for real-world events. It leverages blockchain technology and market-driven pricing to provide real-time implied probabilities across politics, economics, sports, and more.\n\nPOLYMARKET is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 147.6774,
                "mark_valuation": 12844491607,
                "contract_address": "Pre8AREmFPtoJFT8mQSXQLh56cwJmM7CFDRuoGBZiUP",
                "implied_valuation": 12821691278,
                "token_premium_percent": -0.18
              },
              {
                "url": "https://www.prestocks.com/spacex",
                "name": "SpaceX PreStocks",
                "supply": 8742.928256,
                "symbol": "SPACEX",
                "logo_url": "https://www.prestocks.com/logos/spacex.png",
                "mark_price": 795.49,
                "description": "SpaceX engineers reusable launch vehicles and the Starlink satellite constellation for global broadband. Their focus on rapid reusability and vertical integration drives down launch costs and accelerates space access.\n\nSPACEX is a PreStocks issued token backed 1:1 by SPV exposure that tracks the price of the underlying private company.",
                "token_price": 701.0533,
                "mark_valuation": 2085951555556,
                "contract_address": "PreANxuXjsy2pvisWWMNB6YaJNzr7681wJJr2rHsfTh",
                "implied_valuation": 1838317496767,
                "token_premium_percent": -11.87
              }
            ],
            "attribution": "Source: PreStocks (prestocks.com) — Solana tokens backed 1:1 by SPV exposure to the underlying private company"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "venue",
                  "count",
                  "companies",
                  "attribution"
                ],
                "properties": {
                  "as_of": {
                    "type": "string",
                    "description": "ISO 8601 timestamp when this response was generated."
                  },
                  "count": {
                    "type": "number",
                    "description": "Number of companies in `companies`."
                  },
                  "venue": {
                    "type": "string",
                    "description": "Issuing venue for the tokens — always 'prestocks'."
                  },
                  "source": {
                    "type": "string",
                    "const": "x402stock"
                  },
                  "companies": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "symbol",
                        "name",
                        "description",
                        "mark_price",
                        "mark_valuation",
                        "token_price",
                        "implied_valuation",
                        "token_premium_percent",
                        "supply",
                        "contract_address",
                        "logo_url",
                        "url"
                      ],
                      "properties": {
                        "url": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "PreStocks company page URL."
                        },
                        "name": {
                          "type": "string",
                          "description": "PreStocks token name, e.g. 'Anthropic PreStocks'."
                        },
                        "supply": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Circulating token supply."
                        },
                        "symbol": {
                          "type": "string",
                          "description": "PreStocks token symbol, e.g. ANTHROPIC, OPENAI, SPACEX. Use as the {symbol} path param."
                        },
                        "logo_url": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Company logo image URL."
                        },
                        "mark_price": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "SPV mark price per token in USD — the underlying private company's marked value. NOT a last-trade price."
                        },
                        "description": {
                          "type": "string",
                          "description": "Plain-language overview of the underlying private company, plus the token's 1:1 SPV-backing note."
                        },
                        "token_price": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Current on-chain token trading price in USD. Can diverge from mark_price — that gap is the premium/discount."
                        },
                        "mark_valuation": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Company valuation in USD implied by the SPV mark (mark_price basis)."
                        },
                        "contract_address": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Solana mint address of the PreStocks SPV token."
                        },
                        "implied_valuation": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "Company valuation in USD implied by the on-chain token_price."
                        },
                        "token_premium_percent": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ],
                          "description": "token_price vs mark_price, in percent. Positive = token trades at a premium to the SPV mark; negative = discount."
                        }
                      },
                      "additionalProperties": false
                    },
                    "description": "Every PreStocks private company, most-valuable first."
                  },
                  "attribution": {
                    "type": "string",
                    "description": "Required source-attribution string; pass through to end users."
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 10 of 10

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402stock.xyz/api/v1/treasury-yields",
    "method": "GET",
    "mimeType": "application/json",
    "description": "The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": 1
          }
        },
        "output": {
          "type": "json",
          "example": {
            "unit": "percent",
            "as_of": "2026-05-29T00:00:00.000Z",
            "count": 1,
            "rates": [
              {
                "date": "2026-05-29",
                "rates": {
                  "1mo": 3.72,
                  "1yr": 3.47,
                  "2mo": 3.66,
                  "2yr": 3.47,
                  "3mo": 3.65,
                  "3yr": 3.55,
                  "4mo": 3.62,
                  "5yr": 3.74,
                  "6mo": 3.58,
                  "7yr": 3.95,
                  "10yr": 4.19,
                  "20yr": 4.81,
                  "30yr": 4.86,
                  "1.5mo": 3.71
                }
              }
            ],
            "series": "daily_treasury_par_yield_curve",
            "source": "us_treasury",
            "maturities": [
              "1mo",
              "1.5mo",
              "2mo",
              "3mo",
              "4mo",
              "6mo",
              "1yr",
              "2yr",
              "3yr",
              "5yr",
              "7yr",
              "10yr",
              "20yr",
              "30yr"
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "limit"
                ],
                "properties": {
                  "year": {
                    "type": "integer",
                    "maximum": 2100,
                    "minimum": 1990
                  },
                  "limit": {
                    "type": "integer",
                    "default": 1,
                    "maximum": 250,
                    "exclusiveMinimum": 0
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "required": [
                  "source",
                  "as_of",
                  "series",
                  "unit",
                  "maturities",
                  "count",
                  "rates"
                ],
                "properties": {
                  "unit": {
                    "type": "string"
                  },
                  "as_of": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "count": {
                    "type": "number"
                  },
                  "rates": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "date",
                        "rates"
                      ],
                      "properties": {
                        "date": {
                          "type": "string"
                        },
                        "rates": {
                          "type": "object",
                          "propertyNames": {
                            "type": "string"
                          },
                          "additionalProperties": {
                            "anyOf": [
                              {
                                "type": "number"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          }
                        }
                      },
                      "additionalProperties": false
                    }
                  },
                  "series": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string",
                    "const": "us_treasury"
                  },
                  "maturities": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

90/100 Solid

#7 of 109 in Finance. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime 30d
Compliance
A 14/14 checks pass
Price
$0.01 to $0.05 p50 in Finance
Risk
clean no risk flag
Traction
$32.64 30d 39 buyers, top buyer 35% (address, not entity)
14/14 compliance checks
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-07-20. Last up 2026-10-20.

── Site signals

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
How the score works

What the score read on this service: status online, 100% uptime 30d, 356ms response p95, x402 compliance 14 of 14, $0.01 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Finance, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 109 listings, this one among them: the same 109 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($32.64, 1,103 tx). Traction is a conservative undercount; first settlement seen 2026-05-30.

All measured facts

What it does

Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment. Paid in USDC via x402 on Base, no API key required.

x402stock is a listed x402 Finance API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.

Page rendered at . This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-20 to 2026-10-19 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Finance

uptime · latest daily rollup
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
356ms
avg response
217ms
total checks
2,759

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min)
$0.01
price (max)
$0.05
category percentile (min)
p50 in Finance
category percentile (max)
p55 in Finance
endpoints / prices
10 / 4
model
tiered
stability
100%

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

assessment volume 30d
$32.64
exact assessment volume 30d (USD)
32.64
assessment recorded at (UTC)
2026-10-19T20:23:09.839Z
buyers 30d
39
settlements 30d
1,103
measured since
2026-05-30 (start of our harvest window)
last settlement
2026-10-19
top buyer share
35% of 30d volume (address, not entity)
top 3 buyers share
75% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
0.26x the 30d daily rate
networks
eip155:8453
volume all-time
$219.45
settlements all-time
7,870
median settlement 30d
$0.02
max settlement 30d
$0.75

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since
2026-07-20
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402253ms10
Online402217ms10
Online402192ms10
Online402212ms10
Online402211ms10
Online402372ms10
Online402176ms10
Online402218ms10
Online402207ms10
Online402150ms10
Online40289ms10
Online402185ms10
Online402222ms10
Online402113ms10
Online402220ms10
Online402294ms10
Online402257ms10
Online402267ms10

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $32.64, peak $11.73 on 10-08
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 0 of 30 completed days below 100%
Volume 30d
$32.64
Uptime
0 of 30 completed days below 100%
Daily on-chain settlement volume in US dollars, 2026-09-20 to 2026-10-19; highest day $11.73 on 10-08; 3 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 146ms, avg 220ms, max 296ms

09-20 to 10-19 UTC

Scores over time

x402 compliance low 14/14, high 14/14

09-20 to 10-19 UTC

Price percentile in Finance own low to high; exact values below

09-20 to 10-19 UTC

Site signals present (of 6) own low to high; exact values below

09-20 to 10-19 UTC

Scores: one day per column, 09-20 to 10-19, on the columns of Response time. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/x402stock/price, /scores, /volume and /buyers.

Values

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $32.64, peak $11.73 on 10-08. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-20 to 2026-10-19 UTC. Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-20 to 2026-10-19: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-09-20no datano datano datano datano data14/14p485/6
2026-09-21$0.8448100%166.00ms14/14p475/6
2026-09-22$5.305148100%295.52ms14/14p475/6
2026-09-23$0.28225100%239.03ms14/14p475/6
2026-09-24$1.30356100%251.36ms14/14p475/6
2026-09-25$0.26126100%259.53ms14/14p475/6
2026-09-26$0.0313100%216.51ms14/14p465/6
2026-09-27$0.1135100%272.91ms14/14p465/6
2026-09-28$2.314144100%263.69ms14/14p475/6
2026-09-29$0.23322100%284.21ms14/14p485/6
2026-09-30$0.0422100%210.19ms14/14p485/6
2026-10-01$0.35333100%222.27ms14/14p485/6
2026-10-02$0.0423100%186.22ms14/14p485/6
2026-10-03$0.0312100%230.32ms14/14p485/6
2026-10-04$0.0535100%231.07ms14/14p465/6
2026-10-05$0.0745100%220.19ms14/14p485/6
2026-10-06$0.22513100%213.17ms14/14p495/6
2026-10-07$0.64415100%214.71ms14/14p495/6
2026-10-08$11.736237100%269.91ms14/14p505/6
2026-10-09$6.594296100%211.27ms14/14p505/6
2026-10-10$0.0412100%210.09ms14/14p495/6
2026-10-11$0.1236100%231.90ms14/14p495/6
2026-10-12$0.1545100%205.29ms14/14p495/6
2026-10-13$1.64523100%201.81ms14/14p495/6
2026-10-14$0.1237100%190.64ms14/14p495/6
2026-10-15$0.0625100%171.89ms14/14p495/6
2026-10-16$0.0323100%169.48ms14/14p505/6
2026-10-17no datano datano data100%145.58ms14/14p505/6
2026-10-18no datano datano data100%190.23ms14/14p505/6
2026-10-19$0.0634100%200.98ms14/14p505/6

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