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StallRow

payment-readyonline

payment-ready until 2026-11-03

A row of x402 micro-services: Base wallet reads, tx decoder, page fetch, seller tools, scheduled change detection with prepaid packs, and a fleet-wide prepaid Fleet Pass.

Compare: all blockchain APIs

Call it x402 v2

x402 v2

Base URL
https://stall-row-production.up.railway.app
Payment
x402 v2, header channel
$ curl -i -X POST -H 'Content-Type: application/json' -d '"\"{\\\"url\\\":\\\"https://token-verdict-production.up.railway.app/v1/verdict\\\"}\""' 'https://stall-row-production.up.railway.app/v1/allowance-audit'

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

Endpoints 14 paid routes on stall-row-production.up.railway.app

POST/v1/allowance-auditBase$0.005since 10-27
POST/v1/card-smithBase$0.10since 10-27
POST/v1/fleet-passBase$5.00since 10-27
POST/v1/gas-oracleBase$0.001since 10-27
POST/v1/job-scoutBase$0.05since 10-27
POST/v1/page-to-markdownBase$0.01since 10-27
POST/v1/price-checkBase$0.05since 10-27
POST/v1/recheckBase$0.005since 10-27

6 more in Example 402 response

Prices as captured in the 402 response: median $0.01 across the 14 endpoints, unchanged since first capture.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
POST/v1/allowance-auditAudit one Base wallet's ERC-20 approvals against a curated list of major spenders (Permit2, Uniswap, Aerodrome, aggregators): active approvals are listed and unlimited ones flagged high risk. Use this when an agent or its owner wants to know what a wallet has already authorized before it holds or moves funds. When the explorer cannot supply the held-token list, the token-dependent fields come back marked unknown rather than the call failing.$0.005BaseUSDCheadersince 10-27
POST/v1/card-smithGenerate or grade an agent card (the /.well-known/agent-card.json an agent publishes for A2A and AgentWorld-style registries). Generate builds a structurally valid card from your fields; grade scores a supplied card and itemizes its defects. Use this when you are registering an agent and want the card right the first time.$0.10BaseUSDCheadersince 10-27
POST/v1/fleet-passFleet Pass · one prepaid balance for the whole fleet: one $5.00 payment buys a $5.00 balance that spends on any paid route across Token Verdict, RouteVerdict, ListSmith, StallRow and LockSmith, each call debited at that route's listed price (90 days). Send the pass id as the X-Fleet-Pass header; read the balance free at POST /v1/fleet-pass/balance. Use this when a loop calls more than one fleet service and wants one budget, not a payment per call.$5.00BaseUSDCheadersince 10-27
POST/v1/gas-oracleCurrent Base gas in one call: the live gas price, the current base fee, the base-fee range across the last 20 blocks, whether fees are rising, falling, or flat, and a cheap-window hint drawn from that data. Use this when an agent wants to time a transaction instead of paying whatever the moment charges.$0.001BaseUSDCheadersince 10-27
POST/v1/job-scoutA digest of currently open agent jobs from the marketplaces we sweep daily, filtered by the capabilities you name and sorted by budget: platform, budget, capability tags, deadline, and source snapshot time on every row, with a stale flag when the snapshot ages past 24 hours. Use this when your agent is looking for paid work.$0.05BaseUSDCheadersince 10-27
POST/v1/page-to-markdownFetch one web page and return its main content as clean Markdown with title and word count, extracted server-side. Private and loopback targets are refused. Use this when an agent needs to read a page inside a workflow without a browser and without wading through navigation and boilerplate.$0.01BaseUSDCheadersince 10-27
POST/v1/price-checkPricing comps for an x402 listing, read live from the CDP Bazaar public catalog: how many resources match your keywords, their price distribution, the closest comparables, and a recommended listing price with its rationale. Use this when you operate an x402 route and are setting or changing its price.$0.05BaseUSDCheadersince 10-27
POST/v1/recheckProbe one x402 resource or page WITHOUT paying it: BASELINE / UNCHANGED / CHANGED with a diff (price, asset, payTo, schema, body) vs the last check. Use this when a scheduled agent must know what changed first. Watch and pack state persist across redeploys on the service volume. Checking the same endpoint on a schedule? Buy the pack instead · POST /v1/recheck/pack is $1 for 250 checks (90 days) and this route spends pack credits when you send pack_id, so a loop makes one payment, not hundreds.$0.005BaseUSDCheadersince 10-27
POST/v1/recheck/packRecheck watch pack · the default for monitoring loops: one $1.00 payment buys 250 change-checks for ONE endpoint ($0.004 per check instead of $0.005), good for 90 days. Returns an unguessable pack id · spend credits via POST /v1/recheck (body pack_id or X-Recheck-Pack header); read the balance free at POST /v1/recheck/pack-balance, and an exhausted pack returns 402 rather than charging per call. Use this when anything checks the same endpoint more than ~3 times a week.$1.00BaseUSDCheadersince 10-27
POST/v1/repo-vitalsVital signs for one GitHub repository in a single call: stars, forks, open issues, license, last push, archived flag, and a 0-100 health score with a verdict line. Use this when an agent is choosing a dependency, a repo to contribute to, or a project to trust, and needs the quick read before the deep one.$0.005BaseUSDCheadersince 10-27
POST/v1/tube-searchYouTube search results as clean JSON: title, video id, URL, channel, duration, and views for each result, scraped from the public results page with no API key. Use this when an agent needs to find a video mid-task and cannot drive a browser or hold a Google API key.$0.01BaseUSDCheadersince 10-27
POST/v1/tx-decoderDecode one Base transaction into plain English: sender, receiver, ETH value, status, the known method behind the selector, every ERC-20 transfer it made, and a one-sentence summary. Use this when an agent needs to explain or verify what a transaction actually did before acting on it.$0.002BaseUSDCheadersince 10-27
POST/v1/wallet-snapshotSnapshot one Base wallet in a single call: ETH balance, top token holdings, first and last activity, and outgoing transaction count. Use this when an agent needs a wallet's shape before deciding to pay, trust, or transact with it. Explorer fields that cannot be supplied come back marked unknown, never invented.$0.005BaseUSDCheadersince 10-27
POST/v1/wallet-verdictA trust verdict for one Base wallet: OFAC SDN exact-match against a dated snapshot, wallet age, activity level, and an address-poisoning scan of its recent token transfers, combined into SAFE, CAUTION, or AVOID with a 0-100 score and itemized reasons. Use this when an agent must decide whether a wallet is safe to pay or take instructions from.$0.02BaseUSDCheadersince 10-27

Payment evidence

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

First of 14 payloads captured by the monitor.

350 lines, scroll inside

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/wallet-snapshot",
    "tags": [
      "base",
      "wallet",
      "balances",
      "data",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Snapshot one Base wallet in a single call: ETH balance, top token holdings, first and last activity, and outgoing transaction count. Use this when an agent needs a wallet's shape before deciding to pay, trust, or transact with it. Explorer fields that cannot be supplied come back marked unknown, never invented.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "address",
              "eth_balance",
              "sources"
            ],
            "properties": {
              "note": {
                "type": "string"
              },
              "address": {
                "type": "string"
              },
              "sources": {
                "type": "object"
              },
              "eth_balance": {
                "type": "string"
              },
              "is_contract": {
                "type": [
                  "boolean",
                  "string",
                  "null"
                ]
              },
              "last_activity": {
                "type": "string"
              },
              "first_activity": {
                "type": "string"
              },
              "token_balances": {
                "type": [
                  "array",
                  "string"
                ],
                "items": {
                  "type": "object",
                  "required": [
                    "address",
                    "name",
                    "symbol",
                    "decimals",
                    "balance",
                    "balance_raw"
                  ],
                  "properties": {
                    "name": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "symbol": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "address": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "balance": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "decimals": {
                      "type": [
                        "integer",
                        "null"
                      ]
                    },
                    "balance_raw": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  }
                }
              },
              "eth_balance_wei": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "eth_balance_source": {
                "type": "string"
              },
              "outgoing_tx_count_nonce": {
                "type": [
                  "integer",
                  "null"
                ]
              }
            }
          },
          "example": {
            "note": "Fields marked unknown could not be supplied by their source.",
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
            "sources": {
              "eth_balance": "blockscout",
              "token_balances": "blockscout",
              "activity_window": "blockscout"
            },
            "eth_balance": "0.0042",
            "is_contract": false,
            "last_activity": "2026-10-20T09:41:52.000000Z",
            "first_activity": "2025-11-02T14:03:11.000000Z",
            "token_balances": [
              {
                "name": "USD Coin",
                "symbol": "USDC",
                "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "balance": "12.5",
                "decimals": 6,
                "balance_raw": "12500000"
              }
            ],
            "eth_balance_wei": "4200000000000000",
            "eth_balance_source": "blockscout",
            "outgoing_tx_count_nonce": 137
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "address": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "address",
                  "eth_balance",
                  "sources"
                ],
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "address": {
                    "type": "string"
                  },
                  "sources": {
                    "type": "object"
                  },
                  "eth_balance": {
                    "type": "string"
                  },
                  "is_contract": {
                    "type": [
                      "boolean",
                      "string",
                      "null"
                    ]
                  },
                  "last_activity": {
                    "type": "string"
                  },
                  "first_activity": {
                    "type": "string"
                  },
                  "token_balances": {
                    "type": [
                      "array",
                      "string"
                    ],
                    "items": {
                      "type": "object",
                      "required": [
                        "address",
                        "name",
                        "symbol",
                        "decimals",
                        "balance",
                        "balance_raw"
                      ],
                      "properties": {
                        "name": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "symbol": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "address": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "balance": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "decimals": {
                          "type": [
                            "integer",
                            "null"
                          ]
                        },
                        "balance_raw": {
                          "type": [
                            "string",
                            "null"
                          ]
                        }
                      }
                    }
                  },
                  "eth_balance_wei": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "eth_balance_source": {
                    "type": "string"
                  },
                  "outgoing_tx_count_nonce": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (13)

Captured payload 2 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/allowance-audit",
    "tags": [
      "base",
      "security",
      "approvals",
      "allowance",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Audit one Base wallet's ERC-20 approvals against a curated list of major spenders (Permit2, Uniswap, Aerodrome, aggregators): active approvals are listed and unlimited ones flagged high risk. Use this when an agent or its owner wants to know what a wallet has already authorized before it holds or moves funds. When the explorer cannot supply the held-token list, the token-dependent fields come back marked unknown rather than the call failing.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "address",
              "tokens_held_checked",
              "spenders_checked",
              "active_approvals",
              "unlimited_approvals",
              "summary"
            ],
            "properties": {
              "note": {
                "type": "string"
              },
              "address": {
                "type": "string"
              },
              "summary": {
                "type": "string"
              },
              "coverage_note": {
                "type": "string"
              },
              "active_approvals": {
                "type": [
                  "array",
                  "string"
                ],
                "items": {
                  "type": "object",
                  "required": [
                    "spender",
                    "spender_name",
                    "allowance_raw",
                    "unlimited",
                    "risk"
                  ],
                  "properties": {
                    "risk": {
                      "type": "string"
                    },
                    "spender": {
                      "type": "string"
                    },
                    "allowance": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "unlimited": {
                      "type": "boolean"
                    },
                    "spender_name": {
                      "type": "string"
                    },
                    "token_symbol": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "allowance_raw": {
                      "type": "string"
                    },
                    "token_address": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  }
                }
              },
              "spender_coverage": {
                "type": "array",
                "items": {
                  "type": "string"
                }
              },
              "spenders_checked": {
                "type": "integer"
              },
              "tokens_held_checked": {
                "type": [
                  "integer",
                  "string"
                ]
              },
              "unlimited_approvals": {
                "type": [
                  "integer",
                  "string"
                ]
              },
              "allowance_checks_performed": {
                "type": "integer"
              }
            }
          },
          "example": {
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
            "summary": "No active approvals found across 2 held token(s) and 10 known spenders.",
            "coverage_note": "Only the listed spenders are checked.",
            "active_approvals": [],
            "spender_coverage": [
              "Permit2 (Uniswap)",
              "Uniswap V3 SwapRouter02"
            ],
            "spenders_checked": 10,
            "tokens_held_checked": 2,
            "unlimited_approvals": 0,
            "allowance_checks_performed": 20
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "address": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "address",
                  "tokens_held_checked",
                  "spenders_checked",
                  "active_approvals",
                  "unlimited_approvals",
                  "summary"
                ],
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "address": {
                    "type": "string"
                  },
                  "summary": {
                    "type": "string"
                  },
                  "coverage_note": {
                    "type": "string"
                  },
                  "active_approvals": {
                    "type": [
                      "array",
                      "string"
                    ],
                    "items": {
                      "type": "object",
                      "required": [
                        "spender",
                        "spender_name",
                        "allowance_raw",
                        "unlimited",
                        "risk"
                      ],
                      "properties": {
                        "risk": {
                          "type": "string"
                        },
                        "spender": {
                          "type": "string"
                        },
                        "allowance": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "unlimited": {
                          "type": "boolean"
                        },
                        "spender_name": {
                          "type": "string"
                        },
                        "token_symbol": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "allowance_raw": {
                          "type": "string"
                        },
                        "token_address": {
                          "type": [
                            "string",
                            "null"
                          ]
                        }
                      }
                    }
                  },
                  "spender_coverage": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  "spenders_checked": {
                    "type": "integer"
                  },
                  "tokens_held_checked": {
                    "type": [
                      "integer",
                      "string"
                    ]
                  },
                  "unlimited_approvals": {
                    "type": [
                      "integer",
                      "string"
                    ]
                  },
                  "allowance_checks_performed": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/tx-decoder",
    "tags": [
      "base",
      "transactions",
      "decode",
      "data",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Decode one Base transaction into plain English: sender, receiver, ETH value, status, the known method behind the selector, every ERC-20 transfer it made, and a one-sentence summary. Use this when an agent needs to explain or verify what a transaction actually did before acting on it.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "tx_hash": "0xabababababababababababababababababababababababababababababababab"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "tx_hash",
              "value_eth",
              "status",
              "erc20_transfers",
              "summary"
            ],
            "properties": {
              "to": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "from": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "method": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "status": {
                "type": "string"
              },
              "summary": {
                "type": "string"
              },
              "tx_hash": {
                "type": "string"
              },
              "gas_used": {
                "type": [
                  "integer",
                  "null"
                ]
              },
              "method_id": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "value_eth": {
                "type": "string"
              },
              "block_number": {
                "type": [
                  "integer",
                  "null"
                ]
              },
              "erc20_transfers": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "from",
                    "to"
                  ],
                  "properties": {
                    "to": {
                      "type": "string"
                    },
                    "from": {
                      "type": "string"
                    },
                    "token": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "amount_raw": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  }
                }
              },
              "method_description": {
                "type": [
                  "string",
                  "null"
                ]
              }
            }
          },
          "example": {
            "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "from": "0x1111111111111111111111111111111111111111",
            "method": "transfer",
            "status": "success",
            "summary": "ERC-20 transfer(to, amount) from 0x1111111111111111111111111111111111111111 to 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 1 ERC-20 transfer(s) — status: success.",
            "tx_hash": "0xabababababababababababababababababababababababababababababababab",
            "gas_used": 51604,
            "method_id": "0xa9059cbb",
            "value_eth": "0",
            "block_number": 22104511,
            "erc20_transfers": [
              {
                "to": "0x2222222222222222222222222222222222222222",
                "from": "0x1111111111111111111111111111111111111111",
                "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "amount_raw": "12500000"
              }
            ],
            "method_description": "ERC-20 transfer(to, amount)"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "tx_hash"
                ],
                "properties": {
                  "tx_hash": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "tx_hash",
                  "value_eth",
                  "status",
                  "erc20_transfers",
                  "summary"
                ],
                "properties": {
                  "to": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "from": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "method": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "status": {
                    "type": "string"
                  },
                  "summary": {
                    "type": "string"
                  },
                  "tx_hash": {
                    "type": "string"
                  },
                  "gas_used": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "method_id": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "value_eth": {
                    "type": "string"
                  },
                  "block_number": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "erc20_transfers": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "from",
                        "to"
                      ],
                      "properties": {
                        "to": {
                          "type": "string"
                        },
                        "from": {
                          "type": "string"
                        },
                        "token": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "amount_raw": {
                          "type": [
                            "string",
                            "null"
                          ]
                        }
                      }
                    }
                  },
                  "method_description": {
                    "type": [
                      "string",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/gas-oracle",
    "tags": [
      "base",
      "gas",
      "fees",
      "data",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Current Base gas in one call: the live gas price, the current base fee, the base-fee range across the last 20 blocks, whether fees are rising, falling, or flat, and a cheap-window hint drawn from that data. Use this when an agent wants to time a transaction instead of paying whatever the moment charges.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {},
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "chain",
              "latest_block",
              "gas_price_gwei",
              "base_fee_gwei",
              "trend",
              "cheapest_window_hint"
            ],
            "properties": {
              "note": {
                "type": "string"
              },
              "chain": {
                "type": "string"
              },
              "trend": {
                "enum": [
                  "rising",
                  "falling",
                  "flat"
                ],
                "type": "string"
              },
              "as_of_epoch": {
                "type": "integer"
              },
              "latest_block": {
                "type": "integer"
              },
              "base_fee_gwei": {
                "type": "string"
              },
              "blocks_sampled": {
                "type": "integer"
              },
              "gas_price_gwei": {
                "type": "string"
              },
              "cheapest_window_hint": {
                "type": "string"
              },
              "base_fee_max_gwei_20_blocks": {
                "type": "string"
              },
              "base_fee_min_gwei_20_blocks": {
                "type": "string"
              }
            }
          },
          "example": {
            "note": "Trend and hint describe the last ~20 blocks only.",
            "chain": "base",
            "trend": "flat",
            "as_of_epoch": 1761000000,
            "latest_block": 22104511,
            "base_fee_gwei": "0.0058",
            "blocks_sampled": 20,
            "gas_price_gwei": "0.0062",
            "cheapest_window_hint": "Base fee is flat across the last 20 blocks.",
            "base_fee_max_gwei_20_blocks": "0.0079",
            "base_fee_min_gwei_20_blocks": "0.0051"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {}
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "chain",
                  "latest_block",
                  "gas_price_gwei",
                  "base_fee_gwei",
                  "trend",
                  "cheapest_window_hint"
                ],
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "chain": {
                    "type": "string"
                  },
                  "trend": {
                    "enum": [
                      "rising",
                      "falling",
                      "flat"
                    ],
                    "type": "string"
                  },
                  "as_of_epoch": {
                    "type": "integer"
                  },
                  "latest_block": {
                    "type": "integer"
                  },
                  "base_fee_gwei": {
                    "type": "string"
                  },
                  "blocks_sampled": {
                    "type": "integer"
                  },
                  "gas_price_gwei": {
                    "type": "string"
                  },
                  "cheapest_window_hint": {
                    "type": "string"
                  },
                  "base_fee_max_gwei_20_blocks": {
                    "type": "string"
                  },
                  "base_fee_min_gwei_20_blocks": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/wallet-verdict",
    "tags": [
      "base",
      "security",
      "sanctions",
      "verdict",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "A trust verdict for one Base wallet: OFAC SDN exact-match against a dated snapshot, wallet age, activity level, and an address-poisoning scan of its recent token transfers, combined into SAFE, CAUTION, or AVOID with a 0-100 score and itemized reasons. Use this when an agent must decide whether a wallet is safe to pay or take instructions from.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "address",
              "verdict",
              "score",
              "sanctions",
              "poisoning",
              "reasons"
            ],
            "properties": {
              "score": {
                "type": "integer"
              },
              "limits": {
                "type": "string"
              },
              "address": {
                "type": "string"
              },
              "reasons": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "name",
                    "points",
                    "detail"
                  ],
                  "properties": {
                    "name": {
                      "type": "string"
                    },
                    "detail": {
                      "type": "string"
                    },
                    "points": {
                      "type": "integer"
                    }
                  }
                }
              },
              "verdict": {
                "enum": [
                  "SAFE",
                  "CAUTION",
                  "AVOID"
                ],
                "type": "string"
              },
              "poisoning": {
                "type": "object"
              },
              "sanctions": {
                "type": "object"
              },
              "first_activity": {
                "type": "string"
              },
              "wallet_age_days": {
                "type": [
                  "integer",
                  "null"
                ]
              },
              "outgoing_tx_count_nonce": {
                "type": [
                  "integer",
                  "null"
                ]
              }
            }
          },
          "example": {
            "score": 100,
            "limits": "Sanctions matching is exact-address only against the bundled snapshot.",
            "address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
            "reasons": [],
            "verdict": "SAFE",
            "poisoning": {
              "status": "none_found",
              "signals": []
            },
            "sanctions": {
              "status": "no_match",
              "matched": false,
              "snapshot_date": "2026-10-21"
            },
            "first_activity": "2025-11-02T14:03:11+00:00",
            "wallet_age_days": 352,
            "outgoing_tx_count_nonce": 137
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "address"
                ],
                "properties": {
                  "address": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "address",
                  "verdict",
                  "score",
                  "sanctions",
                  "poisoning",
                  "reasons"
                ],
                "properties": {
                  "score": {
                    "type": "integer"
                  },
                  "limits": {
                    "type": "string"
                  },
                  "address": {
                    "type": "string"
                  },
                  "reasons": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "name",
                        "points",
                        "detail"
                      ],
                      "properties": {
                        "name": {
                          "type": "string"
                        },
                        "detail": {
                          "type": "string"
                        },
                        "points": {
                          "type": "integer"
                        }
                      }
                    }
                  },
                  "verdict": {
                    "enum": [
                      "SAFE",
                      "CAUTION",
                      "AVOID"
                    ],
                    "type": "string"
                  },
                  "poisoning": {
                    "type": "object"
                  },
                  "sanctions": {
                    "type": "object"
                  },
                  "first_activity": {
                    "type": "string"
                  },
                  "wallet_age_days": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "outgoing_tx_count_nonce": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 6 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/tube-search",
    "tags": [
      "search",
      "youtube",
      "video",
      "data",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "YouTube search results as clean JSON: title, video id, URL, channel, duration, and views for each result, scraped from the public results page with no API key. Use this when an agent needs to find a video mid-task and cannot drive a browser or hold a Google API key.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "query": "base blockchain x402 tutorial",
            "max_results": 5
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "query",
              "count",
              "results"
            ],
            "properties": {
              "count": {
                "type": "integer"
              },
              "query": {
                "type": "string"
              },
              "results": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "title",
                    "video_id",
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string"
                    },
                    "title": {
                      "type": "string"
                    },
                    "views": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "channel": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "duration": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "video_id": {
                      "type": "string"
                    }
                  }
                }
              }
            }
          },
          "example": {
            "count": 1,
            "query": "base blockchain x402 tutorial",
            "results": [
              {
                "url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
                "title": "x402 explained in 10 minutes",
                "views": "12K views",
                "channel": "Example Channel",
                "duration": "10:24",
                "video_id": "dQw4w9WgXcQ"
              }
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "query"
                ],
                "properties": {
                  "query": {
                    "type": "string"
                  },
                  "max_results": {
                    "type": "integer",
                    "maximum": 20,
                    "minimum": 1
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "query",
                  "count",
                  "results"
                ],
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "query": {
                    "type": "string"
                  },
                  "results": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "title",
                        "video_id",
                        "url"
                      ],
                      "properties": {
                        "url": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "views": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "channel": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "duration": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "video_id": {
                          "type": "string"
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 7 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/page-to-markdown",
    "tags": [
      "fetch",
      "markdown",
      "web",
      "reading",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Fetch one web page and return its main content as clean Markdown with title and word count, extracted server-side. Private and loopback targets are refused. Use this when an agent needs to read a page inside a workflow without a browser and without wading through navigation and boilerplate.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://www.x402.org/"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "url",
              "final_url",
              "markdown",
              "word_count"
            ],
            "properties": {
              "url": {
                "type": "string"
              },
              "title": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "markdown": {
                "type": "string"
              },
              "final_url": {
                "type": "string"
              },
              "word_count": {
                "type": "integer"
              }
            }
          },
          "example": {
            "url": "https://www.x402.org/",
            "title": "x402 — internet-native payments",
            "markdown": "# x402\n\nAn open standard for internet-native payments.",
            "final_url": "https://www.x402.org/",
            "word_count": 8
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "url",
                  "final_url",
                  "markdown",
                  "word_count"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "title": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "markdown": {
                    "type": "string"
                  },
                  "final_url": {
                    "type": "string"
                  },
                  "word_count": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 8 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/repo-vitals",
    "tags": [
      "github",
      "repos",
      "data",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Vital signs for one GitHub repository in a single call: stars, forks, open issues, license, last push, archived flag, and a 0-100 health score with a verdict line. Use this when an agent is choosing a dependency, a repo to contribute to, or a project to trust, and needs the quick read before the deep one.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "repo": "QuincyGB/token-verdict"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "repo",
              "stars",
              "forks",
              "open_issues",
              "archived",
              "health_score",
              "verdict"
            ],
            "properties": {
              "url": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "repo": {
                "type": "string"
              },
              "forks": {
                "type": "integer"
              },
              "stars": {
                "type": "integer"
              },
              "license": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "verdict": {
                "type": "string"
              },
              "archived": {
                "type": "boolean"
              },
              "pushed_at": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "created_at": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "description": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "open_issues": {
                "type": "integer"
              },
              "health_notes": {
                "type": "array",
                "items": {
                  "type": "string"
                }
              },
              "health_score": {
                "type": "integer"
              }
            }
          },
          "example": {
            "url": "https://github.com/QuincyGB/token-verdict",
            "repo": "QuincyGB/token-verdict",
            "forks": 0,
            "stars": 3,
            "license": "MIT",
            "verdict": "Active-looking repository with a modest footprint.",
            "archived": false,
            "pushed_at": "2026-10-21T19:11:00Z",
            "created_at": "2026-10-07T00:00:00Z",
            "description": "x402 token-risk verdict service",
            "open_issues": 1,
            "health_notes": [
              "Very few stars (<10)."
            ],
            "health_score": 45
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "repo"
                ],
                "properties": {
                  "repo": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "repo",
                  "stars",
                  "forks",
                  "open_issues",
                  "archived",
                  "health_score",
                  "verdict"
                ],
                "properties": {
                  "url": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "repo": {
                    "type": "string"
                  },
                  "forks": {
                    "type": "integer"
                  },
                  "stars": {
                    "type": "integer"
                  },
                  "license": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "verdict": {
                    "type": "string"
                  },
                  "archived": {
                    "type": "boolean"
                  },
                  "pushed_at": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "created_at": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "description": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "open_issues": {
                    "type": "integer"
                  },
                  "health_notes": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  "health_score": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 9 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/price-check",
    "tags": [
      "x402",
      "bazaar",
      "pricing",
      "sellers",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Pricing comps for an x402 listing, read live from the CDP Bazaar public catalog: how many resources match your keywords, their price distribution, the closest comparables, and a recommended listing price with its rationale. Use this when you operate an x402 route and are setting or changing its price.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "keywords": "token risk verdict"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "keywords",
              "catalog_status",
              "matches_found",
              "comparables",
              "rationale"
            ],
            "properties": {
              "keywords": {
                "type": "string"
              },
              "rationale": {
                "type": "string"
              },
              "comparables": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "description",
                    "price_units",
                    "price_usd"
                  ],
                  "properties": {
                    "resource": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "price_usd": {
                      "type": "number"
                    },
                    "description": {
                      "type": "string"
                    },
                    "price_units": {
                      "type": "integer"
                    }
                  }
                }
              },
              "matches_found": {
                "type": "integer"
              },
              "catalog_status": {
                "type": "string"
              },
              "price_distribution": {
                "type": [
                  "object",
                  "null"
                ],
                "properties": {
                  "max_usd": {
                    "type": "number"
                  },
                  "min_usd": {
                    "type": "number"
                  },
                  "p90_usd": {
                    "type": "number"
                  },
                  "median_usd": {
                    "type": "number"
                  }
                }
              },
              "recommended_price_usd": {
                "type": [
                  "number",
                  "null"
                ]
              }
            }
          },
          "example": {
            "keywords": "token risk verdict",
            "rationale": "Median of 3 cataloged match(es).",
            "comparables": [
              {
                "resource": "https://example.com/v1/verdict",
                "price_usd": 0.02,
                "description": "Token verdict",
                "price_units": 20000
              }
            ],
            "matches_found": 3,
            "catalog_status": "ok",
            "price_distribution": {
              "max_usd": 0.05,
              "min_usd": 0.01,
              "p90_usd": 0.05,
              "median_usd": 0.02
            },
            "recommended_price_usd": 0.02
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "keywords"
                ],
                "properties": {
                  "keywords": {
                    "type": "string"
                  },
                  "description": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "keywords",
                  "catalog_status",
                  "matches_found",
                  "comparables",
                  "rationale"
                ],
                "properties": {
                  "keywords": {
                    "type": "string"
                  },
                  "rationale": {
                    "type": "string"
                  },
                  "comparables": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "description",
                        "price_units",
                        "price_usd"
                      ],
                      "properties": {
                        "resource": {
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "price_usd": {
                          "type": "number"
                        },
                        "description": {
                          "type": "string"
                        },
                        "price_units": {
                          "type": "integer"
                        }
                      }
                    }
                  },
                  "matches_found": {
                    "type": "integer"
                  },
                  "catalog_status": {
                    "type": "string"
                  },
                  "price_distribution": {
                    "type": [
                      "object",
                      "null"
                    ],
                    "properties": {
                      "max_usd": {
                        "type": "number"
                      },
                      "min_usd": {
                        "type": "number"
                      },
                      "p90_usd": {
                        "type": "number"
                      },
                      "median_usd": {
                        "type": "number"
                      }
                    }
                  },
                  "recommended_price_usd": {
                    "type": [
                      "number",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 10 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/card-smith",
    "tags": [
      "agents",
      "a2a",
      "agent-card",
      "identity",
      "sellers"
    ],
    "mimeType": "application/json",
    "description": "Generate or grade an agent card (the /.well-known/agent-card.json an agent publishes for A2A and AgentWorld-style registries). Generate builds a structurally valid card from your fields; grade scores a supplied card and itemizes its defects. Use this when you are registering an agent and want the card right the first time.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "mode": "generate",
            "name": "Ren",
            "skills": [
              "research"
            ],
            "description": "Research agent"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "mode",
              "validation"
            ],
            "properties": {
              "card": {
                "type": [
                  "object",
                  "null"
                ]
              },
              "mode": {
                "type": "string"
              },
              "validation": {
                "type": "object",
                "required": [
                  "valid_structure",
                  "score",
                  "defects"
                ],
                "properties": {
                  "score": {
                    "type": "integer"
                  },
                  "defects": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "name",
                        "severity",
                        "detail"
                      ],
                      "properties": {
                        "name": {
                          "type": "string"
                        },
                        "detail": {
                          "type": "string"
                        },
                        "severity": {
                          "type": "string"
                        }
                      }
                    }
                  },
                  "valid_structure": {
                    "type": "boolean"
                  }
                }
              }
            }
          },
          "example": {
            "card": {
              "url": "",
              "name": "Ren",
              "skills": [],
              "version": "1.0.0",
              "description": "Research agent"
            },
            "mode": "generate",
            "validation": {
              "score": 55,
              "defects": [
                {
                  "name": "missing url",
                  "detail": "Top-level 'url' is absent or empty.",
                  "severity": "major"
                }
              ],
              "valid_structure": false
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "mode"
                ],
                "properties": {
                  "card": {
                    "type": "object"
                  },
                  "mode": {
                    "enum": [
                      "generate",
                      "grade"
                    ],
                    "type": "string"
                  },
                  "name": {
                    "type": "string"
                  },
                  "skills": {
                    "type": "array"
                  },
                  "description": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "mode",
                  "validation"
                ],
                "properties": {
                  "card": {
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "mode": {
                    "type": "string"
                  },
                  "validation": {
                    "type": "object",
                    "required": [
                      "valid_structure",
                      "score",
                      "defects"
                    ],
                    "properties": {
                      "score": {
                        "type": "integer"
                      },
                      "defects": {
                        "type": "array",
                        "items": {
                          "type": "object",
                          "required": [
                            "name",
                            "severity",
                            "detail"
                          ],
                          "properties": {
                            "name": {
                              "type": "string"
                            },
                            "detail": {
                              "type": "string"
                            },
                            "severity": {
                              "type": "string"
                            }
                          }
                        }
                      },
                      "valid_structure": {
                        "type": "boolean"
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 11 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/job-scout",
    "tags": [
      "jobs",
      "bounties",
      "agents",
      "work",
      "digest"
    ],
    "mimeType": "application/json",
    "description": "A digest of currently open agent jobs from the marketplaces we sweep daily, filtered by the capabilities you name and sorted by budget: platform, budget, capability tags, deadline, and source snapshot time on every row, with a stale flag when the snapshot ages past 24 hours. Use this when your agent is looking for paid work.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "limit": 5,
            "capabilities": [
              "research"
            ]
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "data_stale",
              "count",
              "jobs",
              "note"
            ],
            "properties": {
              "jobs": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "title",
                    "platform",
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string"
                    },
                    "title": {
                      "type": "string"
                    },
                    "platform": {
                      "type": "string"
                    },
                    "budget_usd": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "capabilities": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    }
                  }
                }
              },
              "note": {
                "type": "string"
              },
              "count": {
                "type": "integer"
              },
              "data_stale": {
                "type": "boolean"
              },
              "snapshot_source": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "snapshot_age_hours": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "snapshot_fetched_at": {
                "type": [
                  "string",
                  "null"
                ]
              }
            }
          },
          "example": {
            "jobs": [
              {
                "url": "https://synmerco.com",
                "title": "FDIC bank health snapshot, 10 Florida banks",
                "status": "open",
                "platform": "Synmerco",
                "budget_usd": 12,
                "expires_at": "2026-10-23T16:15:00Z",
                "fetched_at": "2026-10-21T19:49:00Z",
                "capabilities": [
                  "research",
                  "data-analysis"
                ]
              }
            ],
            "note": "Snapshot data from our own platform sweeps.",
            "count": 1,
            "data_stale": false,
            "snapshot_source": "Ren's Synmerco sweep",
            "snapshot_age_hours": 2,
            "snapshot_fetched_at": "2026-10-21T19:49:00Z"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {
                  "limit": {
                    "type": "integer"
                  },
                  "capabilities": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "data_stale",
                  "count",
                  "jobs",
                  "note"
                ],
                "properties": {
                  "jobs": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "title",
                        "platform",
                        "url"
                      ],
                      "properties": {
                        "url": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "platform": {
                          "type": "string"
                        },
                        "budget_usd": {
                          "type": [
                            "number",
                            "null"
                          ]
                        },
                        "capabilities": {
                          "type": "array",
                          "items": {
                            "type": "string"
                          }
                        }
                      }
                    }
                  },
                  "note": {
                    "type": "string"
                  },
                  "count": {
                    "type": "integer"
                  },
                  "data_stale": {
                    "type": "boolean"
                  },
                  "snapshot_source": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "snapshot_age_hours": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "snapshot_fetched_at": {
                    "type": [
                      "string",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 12 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/recheck",
    "tags": [
      "monitoring",
      "x402",
      "change-detection",
      "diff",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Probe one x402 resource or page WITHOUT paying it: BASELINE / UNCHANGED / CHANGED with a diff (price, asset, payTo, schema, body) vs the last check. Use this when a scheduled agent must know what changed first. Watch and pack state persist across redeploys on the service volume. Checking the same endpoint on a schedule? Buy the pack instead — POST /v1/recheck/pack is $1 for 250 checks (90 days) and this route spends pack credits when you send pack_id, so a loop makes one payment, not hundreds.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://token-verdict-production.up.railway.app/v1/verdict",
            "watch_id": "token-verdict-main"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "watch_id",
              "url",
              "kind",
              "status",
              "changes",
              "current",
              "checked_at",
              "summary"
            ],
            "properties": {
              "url": {
                "type": "string"
              },
              "kind": {
                "enum": [
                  "x402",
                  "web"
                ],
                "type": "string"
              },
              "status": {
                "enum": [
                  "BASELINE",
                  "UNCHANGED",
                  "CHANGED"
                ],
                "type": "string"
              },
              "changes": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "field",
                    "before",
                    "after"
                  ],
                  "properties": {
                    "after": {
                      "type": [
                        "string",
                        "integer",
                        "null"
                      ]
                    },
                    "field": {
                      "type": "string"
                    },
                    "before": {
                      "type": [
                        "string",
                        "integer",
                        "null"
                      ]
                    }
                  }
                }
              },
              "current": {
                "type": "object"
              },
              "summary": {
                "type": "string"
              },
              "watch_id": {
                "type": "string"
              },
              "checked_at": {
                "type": "string"
              }
            }
          },
          "example": {
            "url": "https://token-verdict-production.up.railway.app/v1/verdict",
            "kind": "x402",
            "status": "CHANGED",
            "changes": [
              {
                "after": "25000",
                "field": "amount",
                "before": "20000"
              }
            ],
            "current": {
              "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
              "amount": "25000",
              "network": "eip155:8453",
              "schema_hash": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
              "status_code": 402,
              "description_hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
            },
            "summary": "Changed since the previous check: amount.",
            "watch_id": "token-verdict-main",
            "checked_at": "2026-10-24T16:00:00Z"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "pack_id": {
                    "type": "string"
                  },
                  "watch_id": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "watch_id",
                  "url",
                  "kind",
                  "status",
                  "changes",
                  "current",
                  "checked_at",
                  "summary"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "kind": {
                    "enum": [
                      "x402",
                      "web"
                    ],
                    "type": "string"
                  },
                  "status": {
                    "enum": [
                      "BASELINE",
                      "UNCHANGED",
                      "CHANGED"
                    ],
                    "type": "string"
                  },
                  "changes": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "field",
                        "before",
                        "after"
                      ],
                      "properties": {
                        "after": {
                          "type": [
                            "string",
                            "integer",
                            "null"
                          ]
                        },
                        "field": {
                          "type": "string"
                        },
                        "before": {
                          "type": [
                            "string",
                            "integer",
                            "null"
                          ]
                        }
                      }
                    }
                  },
                  "current": {
                    "type": "object"
                  },
                  "summary": {
                    "type": "string"
                  },
                  "watch_id": {
                    "type": "string"
                  },
                  "checked_at": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 13 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "1000000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/recheck/pack",
    "tags": [
      "monitoring",
      "x402",
      "change-detection",
      "prepaid",
      "agents"
    ],
    "mimeType": "application/json",
    "description": "Recheck watch pack — the default for monitoring loops: one $1.00 payment buys 250 change-checks for ONE endpoint ($0.004 per check instead of $0.005), good for 90 days. Returns an unguessable pack id — spend credits via POST /v1/recheck (body pack_id or X-Recheck-Pack header); read the balance free at POST /v1/recheck/pack-balance, and an exhausted pack returns 402 rather than charging per call. Use this when anything checks the same endpoint more than ~3 times a week.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://token-verdict-production.up.railway.app/v1/verdict"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "pack_id",
              "url",
              "credits_total",
              "credits_remaining",
              "expires_at"
            ],
            "properties": {
              "url": {
                "type": "string"
              },
              "note": {
                "type": "string"
              },
              "expired": {
                "type": "boolean"
              },
              "pack_id": {
                "type": "string"
              },
              "created_at": {
                "type": "string"
              },
              "expires_at": {
                "type": "string"
              },
              "expiry_days": {
                "type": "integer"
              },
              "price_units": {
                "type": "integer"
              },
              "credits_total": {
                "type": "integer"
              },
              "credits_remaining": {
                "type": "integer"
              }
            }
          },
          "example": {
            "url": "https://token-verdict-production.up.railway.app/v1/verdict",
            "note": "Spend credits with POST /v1/recheck: send this pack_id in the body or the X-Recheck-Pack header. Read the balance free at POST /v1/recheck/pack-balance.",
            "expired": false,
            "pack_id": "pack_9c73fa7ea40a6411b6517bd8cb3465a6",
            "created_at": "2026-10-25T05:36:48Z",
            "expires_at": "2027-01-23T05:36:48Z",
            "expiry_days": 90,
            "price_units": 1000000,
            "credits_total": 250,
            "credits_remaining": 250
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "pack_id",
                  "url",
                  "credits_total",
                  "credits_remaining",
                  "expires_at"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "note": {
                    "type": "string"
                  },
                  "expired": {
                    "type": "boolean"
                  },
                  "pack_id": {
                    "type": "string"
                  },
                  "created_at": {
                    "type": "string"
                  },
                  "expires_at": {
                    "type": "string"
                  },
                  "expiry_days": {
                    "type": "integer"
                  },
                  "price_units": {
                    "type": "integer"
                  },
                  "credits_total": {
                    "type": "integer"
                  },
                  "credits_remaining": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 14 of 14

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F",
      "amount": "5000000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stall-row-production.up.railway.app/v1/fleet-pass",
    "tags": [
      "prepaid",
      "x402",
      "budget",
      "agents",
      "fleet"
    ],
    "mimeType": "application/json",
    "description": "Fleet Pass — one prepaid balance for the whole fleet: one $5.00 payment buys a $5.00 balance that spends on any paid route across Token Verdict, RouteVerdict, ListSmith, StallRow and LockSmith, each call debited at that route's listed price (90 days). Send the pass id as the X-Fleet-Pass header; read the balance free at POST /v1/fleet-pass/balance. Use this when a loop calls more than one fleet service and wants one budget, not a payment per call.",
    "serviceName": "stall-row"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {},
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "pass_id",
              "balance_units",
              "expires_at"
            ],
            "properties": {
              "note": {
                "type": "string"
              },
              "expired": {
                "type": "boolean"
              },
              "pass_id": {
                "type": "string"
              },
              "total_usd": {
                "type": "number"
              },
              "created_at": {
                "type": "string"
              },
              "expires_at": {
                "type": "string"
              },
              "balance_usd": {
                "type": "number"
              },
              "expiry_days": {
                "type": "integer"
              },
              "price_units": {
                "type": "integer"
              },
              "total_units": {
                "type": "integer"
              },
              "balance_units": {
                "type": "integer"
              }
            }
          },
          "example": {
            "note": "Spend with the X-Fleet-Pass header on any fleet route. Read the balance free at POST /v1/fleet-pass/balance.",
            "expired": false,
            "pass_id": "fpass_9c73fa7ea40a6411b6517bd8cb3465a6b3",
            "total_usd": 5,
            "created_at": "2026-10-26T20:00:00Z",
            "expires_at": "2027-01-24T20:00:00Z",
            "balance_usd": 5,
            "expiry_days": 90,
            "price_units": 5000000,
            "total_units": 5000000,
            "balance_units": 5000000
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [],
                "properties": {}
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "example": {
                "type": "object",
                "required": [
                  "pass_id",
                  "balance_units",
                  "expires_at"
                ],
                "properties": {
                  "note": {
                    "type": "string"
                  },
                  "expired": {
                    "type": "boolean"
                  },
                  "pass_id": {
                    "type": "string"
                  },
                  "total_usd": {
                    "type": "number"
                  },
                  "created_at": {
                    "type": "string"
                  },
                  "expires_at": {
                    "type": "string"
                  },
                  "balance_usd": {
                    "type": "number"
                  },
                  "expiry_days": {
                    "type": "integer"
                  },
                  "price_units": {
                    "type": "integer"
                  },
                  "total_units": {
                    "type": "integer"
                  },
                  "balance_units": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

89/100 Solid

#28 of 436 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
100% uptime since 10-27
Compliance
A 14/14 checks pass
Price
$0.001 to $5.00 p9 in Data
Risk
clean no risk flag
Traction
$0.00 30d 0 buyers
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 2026-10-27. Last up 2026-10-27.

── 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, latest daily rollup (no 30d window yet), 138ms response p95, x402 compliance 14 of 14, $0.001 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 Data, 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 436 listings, this one among them: the same 436 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.

Traction is a conservative undercount.

All measured facts

What it does

A row of x402 micro-services: Base wallet reads, tx decoder, page fetch, seller tools, scheduled change detection with prepaid packs, and a fleet-wide prepaid Fleet Pass.

StallRow is a listed x402 Data 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: 2026-09-28 to 2026-10-27 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. 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 · Data

uptime · latest daily rollup
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
138ms
avg response
138ms
total checks
1

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

price (min)
$0.001
price (max)
$5.00
category percentile (min)
p9 in Data
category percentile (max)
p96 in Data
endpoints / prices
14 / 9
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
free host
domain created
---

Identity facts, not a risk score.

assessment volume 30d
$0.00
exact assessment volume 30d (USD)
0
assessment recorded at (UTC)
2026-10-27T11:34:22.522Z
buyers 30d
0
settlements 30d
0
measured since
--- (start of our harvest window)
last settlement
---
top buyer share
-
top 3 buyers share
-
concentrated volume
no
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-

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
2026-10-27
Recent checks
Latest 9 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402111ms14
Online402242ms14
Online402158ms14
Online402145ms14
Online402146ms14
Online402189ms14
Online402190ms14
Online402145ms14
Online402138ms14

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $0.00, peak $10.95 on 10-27*
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime no completed-day data
Volume 30d
$0.00
Uptime
no completed-day data
Daily on-chain settlement volume in US dollars, 2026-09-28 to 2026-10-27; highest day $10.95 on 10-27*; 10 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 159ms, avg 159ms, max 159ms

09-28 to 10-27* UTC

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

Values

* today so far, partial (UTC).

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

Daily snapshot total, 30d: $23.01, peak $10.95 on 10-27*. 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: 2026-09-28 to 2026-10-27 UTC; * today so far, partial (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, 2026-10-12 to 2026-10-27: 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
2026-10-12$0.0211no datano datano datano datano data
2026-10-13no datano datano datano datano datano datano datano data
2026-10-14no datano datano datano datano datano datano datano data
2026-10-15no datano datano datano datano datano datano datano data
2026-10-16no datano datano datano datano datano datano datano data
2026-10-17no datano datano datano datano datano datano datano data
2026-10-18no datano datano datano datano datano datano datano data
2026-10-19no datano datano datano datano datano datano datano data
2026-10-20no datano datano datano datano datano datano datano data
2026-10-21no datano datano datano datano datano datano datano data
2026-10-22no datano datano datano datano datano datano datano data
2026-10-23$3.76262no datano datano datano datano data
2026-10-24$0.0526no datano datano datano datano data
2026-10-25$5.03678no datano datano datano datano data
2026-10-26$3.2039no datano datano datano datano data
2026-10-27*$10.95210100%158.83ms14/14p93/6

Alternatives in Data

claw402 strong 97/100 100% up 30d $1.3k 30d
SniperX•x402 strong 97/100 99.9% up 30d $689.64 30d
glim.sh strong 95/100 100% up 30d $34.32 30d
cn402 strong 93/100 100% up 30d $37.21 30d
x402node solid 93/100 100% up 30d $37.21 30d

5 of 435 other ranked services in Data, ordered by the same measured score.

see the whole category

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Delisting

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