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Sippar Token Market Data

payment-readyonline

payment-ready until 2026-10-23

Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the required "Powered by Nansen API" attribution).

Call it x402 v2

x402 v2

Base URL
https://sippar.network
Payment
x402 v2, header channel
$ curl -i 'https://sippar.network/api/sippar/sell/company-intel'

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

Endpoints 5 paid routes on sippar.network

GET/api/sippar/sell/company-intelBase$0.15since 08-31
GET/api/sippar/sell/property-intelBase$0.06since 08-31
GET/api/sippar/sell/social-searchBase$0.50since 08-31
GET/api/sippar/sell/token-intelBase$0.10since 07-18
GET/api/sippar/sell/web-contentBase$0.05since 08-31

Prices as captured in the 402 response: median $0.10 across the 5 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
MethodPathDescriptionPriceNetworkAsset402 channelCaptured
GET/api/sippar/sell/company-intelNo description$0.15BaseUSDCheadersince 08-31
GET/api/sippar/sell/property-intelBuilding-level solar/roof data for a lat/lng (StableEnrich → Google Solar API): roof segments, sunshine hours, panel capacity estimate. US-centric coverage; real-estate/solar/field-service SDR use case. Requires both "latitude" and "longitude" body fields.$0.06BaseUSDCheadersince 08-31
GET/api/sippar/sell/social-searchNo description$0.50BaseUSDCheadersince 08-31
GET/api/sippar/sell/token-intelNo description$0.10BaseUSDCheadersince 07-18
GET/api/sippar/sell/web-contentNo description$0.05BaseUSDCheadersince 08-31

Payment evidence

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

First of 5 payloads captured by the monitor for GET /api/sippar/sell/company-intel.

275 lines, scroll inside

{
  "error": "Payment Required",
  "rails": [
    {
      "how": "Pay the MPP challenge in the WWW-Authenticate header, retry with Authorization: Payment <credential>.",
      "rail": "tempo-mpp"
    },
    {
      "how": "Send 0.15 USDC on Base (chainId 8453) to 0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316 — either broadcast it yourself and retry with X-PAYMENT: <txHash>, or sign the \"exact\"-scheme authorization in accepts[] (EIP-3009 transferWithAuthorization) and retry with X-PAYMENT: <base64 x402 v2 PaymentPayload>; we settle that through the CDP facilitator.",
      "rail": "base-x402",
      "paymentRequirements": {
        "asset": {
          "symbol": "USDC",
          "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "decimals": 6
        },
        "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
        "amount": "150000",
        "chainId": 8453,
        "network": "base-mainnet",
        "description": "Company Enrichment",
        "amountFormatted": "0.15 USDC"
      }
    },
    {
      "how": "Send 0.15 USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) on Solana mainnet to DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC, retry with X-PAYMENT: <transaction signature>. Each signature is accepted once.",
      "rail": "solana-x402",
      "paymentRequirements": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "payTo": "DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC",
        "amount": "150000",
        "scheme": "exact",
        "network": "solana-mainnet",
        "maxTimeoutSeconds": 120
      }
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
      "amount": "150000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://sippar.network/api/sippar/sell/company-intel",
      "description": "Enrich a company by domain. Pass a company domain (e.g. \"stripe.com\") in the \"company\" field and get firmographic data (CompanyEnrich, sold by StableEnrich): industry, employee range, revenue range, country, founding year, technologies, NAICS codes and funding. One call, no account, pay from your own wallet. Firmographic facts only, no person-level data. A domain maps to a single company so there is no name-ambiguity. No domain? A LinkedIn company URL is the next-best input — it is a unique key and resolves reliably; a bare name is accepted but is best-effort. Every record carries the supplier's own \"dataUpdatedAt\" so you can see how fresh it is.",
      "maxAmountRequired": "150000",
      "maxTimeoutSeconds": 300
    }
  ],
  "collect": {
    "collectUrl": "https://sippar.network/api/sippar/sell/company-intel/collect",
    "asyncHandle": {
      "how": "Send `Prefer: respond-async` (or `?async=1`, or `\"async\": true` in the body) with your payment. The response is an immediate 202 carrying the settlement key and this collect URL; the result is collected from there.",
      "recommended": false,
      "preferHeader": "respond-async",
      "acceptedStatus": 202
    },
    "collectMethod": "POST",
    "inFlightStatus": 409,
    "settlementKeyIs": "the exact value you sent in X-PAYMENT (tx hash, Solana signature, or signed x402 payload), or the MPP credential in Authorization",
    "rePresentingIsFree": true,
    "settlementKeyHeader": "X-PAYMENT",
    "ifYourClientTimesOut": [
      "Do NOT pay again. Your payment bought one delivery and it is held for 168 hours.",
      "POST the SAME payment header to https://sippar.network/api/sippar/sell/company-intel/collect to collect it. You will not be charged again.",
      "While the first call is still running, that returns 409 with a Retry-After; retry after it.",
      "A second payment for the same request inside the duplicate window is refused, NOT spent, so the money is still yours to present for something else."
    ],
    "collectableForSeconds": 604800,
    "settlementKeyHeaderMpp": "Authorization",
    "duplicatePaymentRefusedStatus": 409,
    "duplicatePaymentWindowSeconds": 900,
    "recommendedClientTimeoutSeconds": 300
  },
  "product": "company-intel",
  "success": false,
  "priceUSD": 0.15,
  "resource": {
    "url": "https://sippar.network/api/sippar/sell/company-intel",
    "tags": [
      "x402",
      "sippar",
      "company-intel"
    ],
    "mimeType": "application/json",
    "description": "Enrich a company by domain. Pass a company domain (e.g. \"stripe.com\") in the \"company\" field and get firmographic data (CompanyEnrich, sold by StableEnrich): industry, employee range, revenue range, country, founding year, technologies, NAICS codes and funding. One call, no account, pay from your own wallet. Firmographic facts only, no person-level data. A domain maps to a single company so there is no name-ambiguity. No domain? A LinkedIn company URL is the next-best input — it is a unique key and resolves reliably; a bare name is accepted but is best-effort. Every record carries the supplier's own \"dataUpdatedAt\" so you can see how fresh it is.",
    "serviceName": "Company Enrichment"
  },
  "termsUrl": "https://sippar.network/api/sippar/sell/terms",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "company": "stripe.com"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "asOf": "2026-07-24T12:00:00.000Z",
            "note": "employees/revenue are range strings (e.g. \"5K-10K\", \"over-1b\"); domain lookups map to a single company (no name-ambiguity), but the returned domain can occasionally be a mis-indexed unrelated company — verify it matches your intent.",
            "input": "stripe.com",
            "company": {
              "name": "Stripe",
              "domain": "stripe.com",
              "country": "United States",
              "revenue": "over-1b",
              "industry": "Financial Services",
              "employees": "1K-5K",
              "founded_year": 2010
            },
            "logoUrl": "https://www.google.com/s2/favicons?domain=stripe.com&sz=128",
            "disclaimer": "Factual data only, accurate as of the stated timestamp. Not investment, legal, or business advice, and not a recommendation to transact.",
            "resolvedBy": "domain"
          }
        }
      },
      "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": {
                "required": [
                  "company"
                ],
                "properties": {
                  "company": {
                    "type": "string",
                    "description": "A company domain to enrich, e.g. \"stripe.com\" or \"sub.example.co.uk\". Pass the bare domain (no scheme, no path). Domain lookups map to exactly one company with no name-ambiguity. A LinkedIn company URL (https://www.linkedin.com/company/<slug>) also works and is the next-best input when you have no domain — it is a unique key, and in Sippar's 2026-08-14 testing it resolved correctly on both cases where a bare company name returned an unrelated company. A bare name is accepted but is best-effort and measurably unreliable on generic multi-word names."
                  }
                }
              },
              "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"
              },
              "example": {
                "type": "object",
                "required": [
                  "input",
                  "resolvedBy",
                  "asOf"
                ],
                "properties": {
                  "asOf": {
                    "type": "string",
                    "format": "date-time"
                  },
                  "input": {
                    "type": "string"
                  },
                  "company": {
                    "type": "object",
                    "properties": {
                      "name": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "domain": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "country": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "revenue": {
                        "type": [
                          "string",
                          "null"
                        ],
                        "description": "Range string, e.g. \"over-1b\"."
                      },
                      "industry": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "employees": {
                        "type": [
                          "string",
                          "null"
                        ],
                        "description": "Range string, e.g. \"1-10\", \"1K-5K\"."
                      },
                      "founded_year": {
                        "type": [
                          "number",
                          "null"
                        ]
                      }
                    },
                    "description": "CompanyEnrich org-enrich fields (best-effort, point-in-time). Any field may be null when the upstream has no value."
                  },
                  "logoUrl": {
                    "type": "string",
                    "description": "Free, keyless favicon URL for the resolved domain (Google s2/favicons). Present only when resolvedBy is \"domain\" — omitted for name/linkedinUrl-resolved records, which have no reliable domain to key it off."
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "resolvedBy": {
                    "enum": [
                      "domain"
                    ],
                    "type": "string",
                    "description": "Always \"domain\" for the documented input path."
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}
Other captured 402 responses (4)

Captured payload 2 of 5

{
  "error": "Payment Required",
  "rails": [
    {
      "how": "Pay the MPP challenge in the WWW-Authenticate header, retry with Authorization: Payment <credential>.",
      "rail": "tempo-mpp"
    },
    {
      "how": "Send 0.06 USDC on Base (chainId 8453) to 0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316 — either broadcast it yourself and retry with X-PAYMENT: <txHash>, or sign the \"exact\"-scheme authorization in accepts[] (EIP-3009 transferWithAuthorization) and retry with X-PAYMENT: <base64 x402 v2 PaymentPayload>; we settle that through the CDP facilitator.",
      "rail": "base-x402",
      "paymentRequirements": {
        "asset": {
          "symbol": "USDC",
          "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "decimals": 6
        },
        "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
        "amount": "60000",
        "chainId": 8453,
        "network": "base-mainnet",
        "description": "Property Solar & Roof Insights",
        "amountFormatted": "0.06 USDC"
      }
    },
    {
      "how": "Send 0.06 USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) on Solana mainnet to DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC, retry with X-PAYMENT: <transaction signature>. Each signature is accepted once.",
      "rail": "solana-x402",
      "paymentRequirements": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "payTo": "DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC",
        "amount": "60000",
        "scheme": "exact",
        "network": "solana-mainnet",
        "maxTimeoutSeconds": 120
      }
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
      "amount": "60000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://sippar.network/api/sippar/sell/property-intel",
      "description": "Building-level solar/roof data for a lat/lng (StableEnrich → Google Solar API): roof segments, sunshine hours, panel capacity estimate. US-centric coverage; real-estate/solar/field-service SDR use case. Requires both \"latitude\" and \"longitude\" body fields.",
      "maxAmountRequired": "60000",
      "maxTimeoutSeconds": 300
    }
  ],
  "collect": {
    "collectUrl": "https://sippar.network/api/sippar/sell/property-intel/collect",
    "asyncHandle": {
      "how": "Send `Prefer: respond-async` (or `?async=1`, or `\"async\": true` in the body) with your payment. The response is an immediate 202 carrying the settlement key and this collect URL; the result is collected from there.",
      "recommended": false,
      "preferHeader": "respond-async",
      "acceptedStatus": 202
    },
    "collectMethod": "POST",
    "inFlightStatus": 409,
    "settlementKeyIs": "the exact value you sent in X-PAYMENT (tx hash, Solana signature, or signed x402 payload), or the MPP credential in Authorization",
    "rePresentingIsFree": true,
    "settlementKeyHeader": "X-PAYMENT",
    "ifYourClientTimesOut": [
      "Do NOT pay again. Your payment bought one delivery and it is held for 168 hours.",
      "POST the SAME payment header to https://sippar.network/api/sippar/sell/property-intel/collect to collect it. You will not be charged again.",
      "While the first call is still running, that returns 409 with a Retry-After; retry after it.",
      "A second payment for the same request inside the duplicate window is refused, NOT spent, so the money is still yours to present for something else."
    ],
    "collectableForSeconds": 604800,
    "settlementKeyHeaderMpp": "Authorization",
    "duplicatePaymentRefusedStatus": 409,
    "duplicatePaymentWindowSeconds": 900,
    "recommendedClientTimeoutSeconds": 300
  },
  "product": "property-intel",
  "success": false,
  "priceUSD": 0.06,
  "resource": {
    "url": "https://sippar.network/api/sippar/sell/property-intel",
    "tags": [
      "x402",
      "sippar",
      "property-intel"
    ],
    "mimeType": "application/json",
    "description": "Building-level solar/roof data for a lat/lng (StableEnrich → Google Solar API): roof segments, sunshine hours, panel capacity estimate. US-centric coverage; real-estate/solar/field-service SDR use case. Requires both \"latitude\" and \"longitude\" body fields.",
    "serviceName": "Property Solar & Roof Insights"
  },
  "termsUrl": "https://sippar.network/api/sippar/sell/terms",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "latitude": "37.4220",
            "longitude": "-122.0841"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "asOf": "2026-08-17T16:48:00.000Z",
            "note": "Source: Google Solar API via stableenrich.dev. Coverage is US-centric and imagery-date-bound (see imageryDate/imageryProcessedDate in the response); a miss means the building is outside Solar API coverage, not that no building exists.",
            "insights": {
              "name": "buildings/ChIJyYMbTi23j4ARvoxruIulRJQ",
              "center": {
                "latitude": 37.3861517,
                "longitude": -122.0833905
              },
              "postalCode": "94041",
              "regionCode": "US",
              "boundingBox": {
                "ne": {
                  "latitude": 37.3862929,
                  "longitude": -122.0832357
                },
                "sw": {
                  "latitude": 37.3860086,
                  "longitude": -122.0835272
                }
              },
              "imageryDate": {
                "day": 9,
                "year": 2020,
                "month": 11
              },
              "imageryQuality": "HIGH",
              "solarPotential": {
                "solarPanels": [
                  {
                    "center": {
                      "latitude": 37.3862116,
                      "longitude": -122.0833019
                    },
                    "orientation": "LANDSCAPE",
                    "segmentIndex": 0,
                    "yearlyEnergyDcKwh": 689.13
                  }
                ],
                "buildingStats": {
                  "areaMeters2": 482.73575,
                  "groundAreaMeters2": 465.52,
                  "sunshineQuantiles": [
                    245.73091,
                    907.9734,
                    1110.7421,
                    1330.5519,
                    1478.0201,
                    1553.1654,
                    1601.7421,
                    1636.9102,
                    1667.839,
                    1699.8586,
                    1912.585
                  ]
                },
                "wholeRoofStats": {
                  "areaMeters2": 434.59006,
                  "groundAreaMeters2": 432.62,
                  "sunshineQuantiles": [
                    245.73091,
                    945.40955,
                    1160.0308,
                    1363.4121,
                    1494.4384,
                    1560.435,
                    1606.1453,
                    1639.7478,
                    1668.8038,
                    1699.4238,
                    1885.5632
                  ]
                },
                "panelWidthMeters": 1.045,
                "roofSegmentStats": [
                  {
                    "stats": {
                      "areaMeters2": 403.65176,
                      "groundAreaMeters2": 403.65,
                      "sunshineQuantiles": [
                        245.73091,
                        986.788,
                        1239.0483,
                        1421.2289,
                        1520.8448,
                        1575.3965,
                        1613.7737,
                        1645.1171,
                        1671.4114,
                        1700.3599,
                        1860.1517
                      ]
                    },
                    "center": {
                      "latitude": 37.3861427,
                      "longitude": -122.0833861
                    },
                    "boundingBox": {
                      "ne": {
                        "latitude": 37.3862722,
                        "longitude": -122.0832394
                      },
                      "sw": {
                        "latitude": 37.3860086,
                        "longitude": -122.0835272
                      }
                    },
                    "pitchDegrees": 0.16922827,
                    "azimuthDegrees": 0,
                    "planeHeightAtCenterMeters": 34.04298
                  }
                ],
                "financialAnalyses": [
                  {
                    "monthlyBill": {
                      "units": "20",
                      "currencyCode": "USD"
                    },
                    "panelConfigIndex": -1,
                    "averageKwhPerMonth": 50.126743
                  }
                ],
                "panelHeightMeters": 1.879,
                "solarPanelConfigs": [
                  {
                    "panelsCount": 4,
                    "yearlyEnergyDcKwh": 2742.1433,
                    "roofSegmentSummaries": [
                      {
                        "panelsCount": 4,
                        "pitchDegrees": 0.16922827,
                        "segmentIndex": 0,
                        "azimuthDegrees": 0,
                        "yearlyEnergyDcKwh": 2742.1433
                      }
                    ]
                  }
                ],
                "panelCapacityWatts": 400,
                "panelLifetimeYears": 20,
                "maxArrayAreaMeters2": 306.31454,
                "maxArrayPanelsCount": 156,
                "maxSunshineHoursPerYear": 1715.5634,
                "carbonOffsetFactorKgPerMwh": 428.9201
              },
              "statisticalArea": "06085509600",
              "administrativeArea": "CA",
              "imageryProcessedDate": {
                "day": 29,
                "year": 2026,
                "month": 1
              }
            },
            "latitude": "37.3861",
            "longitude": "-122.0839",
            "disclaimer": "Factual data only, accurate as of the stated timestamp. Not investment, legal, or business advice, and not a recommendation to transact."
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "required": [
                  "latitude",
                  "longitude"
                ],
                "properties": {
                  "latitude": {
                    "type": [
                      "string",
                      "number"
                    ],
                    "pattern": "^-?\\d{1,2}(\\.\\d+)?$",
                    "description": "Building latitude in decimal degrees (WGS84), -90 to 90. A JSON number is accepted too — the value is stringified before validation, so plain decimal notation only (no exponent form, no leading \"+\")."
                  },
                  "longitude": {
                    "type": [
                      "string",
                      "number"
                    ],
                    "pattern": "^-?\\d{1,3}(\\.\\d+)?$",
                    "description": "Building longitude in decimal degrees (WGS84), -180 to 180. REQUIRED: this endpoint is keyed on a coordinate pair, not a street address, and a call without it is rejected with a 400 before any payment is taken."
                  }
                }
              },
              "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"
              },
              "example": {
                "type": "object",
                "required": [
                  "latitude",
                  "longitude",
                  "asOf"
                ],
                "properties": {
                  "asOf": {
                    "type": "string",
                    "format": "date-time",
                    "description": "When Sippar served the call, NOT when the imagery was captured — that is insights.imageryDate."
                  },
                  "note": {
                    "type": "string",
                    "description": "Coverage caveat in words: US-centric, imagery-date-bound, and a miss means the building is outside Solar API coverage rather than nonexistent."
                  },
                  "insights": {
                    "type": "object",
                    "description": "The Google Solar API buildingInsights payload for the closest building, passed through with no envelope of its own: name, center, boundingBox, imageryDate, imageryProcessedDate, imageryQuality, postalCode, administrativeArea, statisticalArea, regionCode and solarPotential. EXPECT A LARGE BODY — solarPotential.solarPanels lists every panel, solarPanelConfigs every layout and financialAnalyses every monthly-bill scenario, so one small 5-segment building measured 93KB (156 panels, 127 configs, 23 analyses). The example truncates each of those arrays to a single element; nothing else is trimmed or renamed. Read imageryDate before trusting the roof geometry: in the measured response the imagery was from 2020 even though it was processed in 2026, so this is imagery-bound data, not a live reading."
                  },
                  "latitude": {
                    "type": "string",
                    "description": "The coordinate you sent, echoed back as validated."
                  },
                  "longitude": {
                    "type": "string"
                  },
                  "disclaimer": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 5

{
  "error": "Payment Required",
  "rails": [
    {
      "how": "Pay the MPP challenge in the WWW-Authenticate header, retry with Authorization: Payment <credential>.",
      "rail": "tempo-mpp"
    },
    {
      "how": "Send 0.05 USDC on Base (chainId 8453) to 0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316 — either broadcast it yourself and retry with X-PAYMENT: <txHash>, or sign the \"exact\"-scheme authorization in accepts[] (EIP-3009 transferWithAuthorization) and retry with X-PAYMENT: <base64 x402 v2 PaymentPayload>; we settle that through the CDP facilitator.",
      "rail": "base-x402",
      "paymentRequirements": {
        "asset": {
          "symbol": "USDC",
          "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "decimals": 6
        },
        "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
        "amount": "50000",
        "chainId": 8453,
        "network": "base-mainnet",
        "description": "Web Content Extraction",
        "amountFormatted": "0.05 USDC"
      }
    },
    {
      "how": "Send 0.05 USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) on Solana mainnet to DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC, retry with X-PAYMENT: <transaction signature>. Each signature is accepted once.",
      "rail": "solana-x402",
      "paymentRequirements": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "payTo": "DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana-mainnet",
        "maxTimeoutSeconds": 120
      }
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://sippar.network/api/sippar/sell/web-content",
      "description": "Clean extracted content for one URL (StableEnrich → Exa): pull a target company's site, press page, or about page for enrichment context. One URL per call.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "collect": {
    "collectUrl": "https://sippar.network/api/sippar/sell/web-content/collect",
    "asyncHandle": {
      "how": "Send `Prefer: respond-async` (or `?async=1`, or `\"async\": true` in the body) with your payment. The response is an immediate 202 carrying the settlement key and this collect URL; the result is collected from there.",
      "recommended": false,
      "preferHeader": "respond-async",
      "acceptedStatus": 202
    },
    "collectMethod": "POST",
    "inFlightStatus": 409,
    "settlementKeyIs": "the exact value you sent in X-PAYMENT (tx hash, Solana signature, or signed x402 payload), or the MPP credential in Authorization",
    "rePresentingIsFree": true,
    "settlementKeyHeader": "X-PAYMENT",
    "ifYourClientTimesOut": [
      "Do NOT pay again. Your payment bought one delivery and it is held for 168 hours.",
      "POST the SAME payment header to https://sippar.network/api/sippar/sell/web-content/collect to collect it. You will not be charged again.",
      "While the first call is still running, that returns 409 with a Retry-After; retry after it.",
      "A second payment for the same request inside the duplicate window is refused, NOT spent, so the money is still yours to present for something else."
    ],
    "collectableForSeconds": 604800,
    "settlementKeyHeaderMpp": "Authorization",
    "duplicatePaymentRefusedStatus": 409,
    "duplicatePaymentWindowSeconds": 900,
    "recommendedClientTimeoutSeconds": 300
  },
  "product": "web-content",
  "success": false,
  "priceUSD": 0.05,
  "resource": {
    "url": "https://sippar.network/api/sippar/sell/web-content",
    "tags": [
      "x402",
      "sippar",
      "web-content"
    ],
    "mimeType": "application/json",
    "description": "Clean extracted content for one URL (StableEnrich → Exa): pull a target company's site, press page, or about page for enrichment context. One URL per call.",
    "serviceName": "Web Content Extraction"
  },
  "termsUrl": "https://sippar.network/api/sippar/sell/terms",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://stripe.com/about"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "url": "https://stripe.com/about",
            "asOf": "2026-08-17T16:47:42.000Z",
            "content": {
              "results": [
                {
                  "id": "https://example.com",
                  "url": "https://example.com",
                  "text": "Example Domain\n\n# Example Domain\n\nThis domain is for use in documentation examples without needing permission…",
                  "title": "Example Domain",
                  "author": null,
                  "favicon": "data:,"
                }
              ],
              "statuses": [
                {
                  "id": "https://example.com",
                  "source": "cached",
                  "status": "success"
                }
              ],
              "requestId": "4e031258b50d71aaf3f54611672a4e43"
            },
            "disclaimer": "Factual data only, accurate as of the stated timestamp. Not investment, legal, or business advice, and not a recommendation to transact."
          }
        }
      },
      "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": {
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "format": "uri",
                    "description": "One absolute http(s) URL to extract, e.g. \"https://stripe.com/about\". Exactly one per call: the upstream accepts a batch of up to 100, but this product is priced and capped for a single URL, so a second URL is a second call. Anything that is not a parseable http or https URL is rejected with a 400 before payment."
                  }
                }
              },
              "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"
              },
              "example": {
                "type": "object",
                "required": [
                  "url",
                  "asOf"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "description": "The URL you sent, trimmed, echoed back."
                  },
                  "asOf": {
                    "type": "string",
                    "format": "date-time",
                    "description": "When Sippar served the call. Extraction is point-in-time — the page can change the minute after."
                  },
                  "content": {
                    "type": "object",
                    "description": "Exa's /contents payload for that one URL: `results` (one entry, carrying id, url, title, text and favicon, plus author, publishedDate, image, summary, highlights, extras or subpages when Exa has them — absent rather than null when it does not), `statuses` (the per-URL outcome, `success` or `error` with an error tag such as CRAWL_TIMEOUT or UNSUPPORTED_URL, and `source` telling you whether the page was served from Exa's cache or crawled live) and `requestId`. Exa's own cost and timing fields are removed before you see them. Read `statuses` before `results`: a page Exa could not fetch comes back as an error status on a successful, paid call, not as a failure of the call."
                  },
                  "disclaimer": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 5

{
  "error": "Payment Required",
  "rails": [
    {
      "how": "Pay the MPP challenge in the WWW-Authenticate header, retry with Authorization: Payment <credential>.",
      "rail": "tempo-mpp"
    },
    {
      "how": "Send 0.50 USDC on Base (chainId 8453) to 0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316, retry with X-PAYMENT: <txHash>.",
      "rail": "base-x402",
      "paymentRequirements": {
        "asset": {
          "symbol": "USDC",
          "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "decimals": 6
        },
        "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
        "amount": "500000",
        "chainId": 8453,
        "network": "base-mainnet",
        "description": "Social Listening",
        "amountFormatted": "0.50 USDC"
      }
    },
    {
      "how": "Send 0.50 USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) on Solana mainnet to DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC, retry with X-PAYMENT: <transaction signature>. Each signature is accepted once.",
      "rail": "solana-x402",
      "paymentRequirements": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "payTo": "DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC",
        "amount": "500000",
        "scheme": "exact",
        "network": "solana-mainnet",
        "maxTimeoutSeconds": 120
      }
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
      "amount": "500000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://sippar.network/api/sippar/sell/social-search",
      "description": "What people are publicly saying about a topic, across Reddit, YouTube and LinkedIn in one call. Returns Sippar's own cited answer plus links to the posts, not the posts themselves. Follow the citations to read them at the source. No account, API key or contract on any platform. Coverage is best-effort and point-in-time; a platform with nothing to say is reported as such rather than dropped.",
      "maxAmountRequired": "500000",
      "maxTimeoutSeconds": 300
    }
  ],
  "collect": {
    "collectUrl": "https://sippar.network/api/sippar/sell/social-search/collect",
    "asyncHandle": {
      "how": "Send `Prefer: respond-async` (or `?async=1`, or `\"async\": true` in the body) with your payment. The response is an immediate 202 carrying the settlement key and this collect URL; the result is collected from there.",
      "recommended": true,
      "preferHeader": "respond-async",
      "acceptedStatus": 202
    },
    "collectMethod": "POST",
    "inFlightStatus": 409,
    "settlementKeyIs": "the exact value you sent in X-PAYMENT (tx hash, Solana signature, or signed x402 payload), or the MPP credential in Authorization",
    "rePresentingIsFree": true,
    "settlementKeyHeader": "X-PAYMENT",
    "ifYourClientTimesOut": [
      "Do NOT pay again. Your payment bought one delivery and it is held for 168 hours.",
      "POST the SAME payment header to https://sippar.network/api/sippar/sell/social-search/collect to collect it. You will not be charged again.",
      "While the first call is still running, that returns 409 with a Retry-After; retry after it.",
      "A second payment for the same request inside the duplicate window is refused, NOT spent, so the money is still yours to present for something else."
    ],
    "collectableForSeconds": 604800,
    "expectedLatencySeconds": {
      "max": 300,
      "typical": 70,
      "measuredOn": "2026-08-27"
    },
    "settlementKeyHeaderMpp": "Authorization",
    "duplicatePaymentRefusedStatus": 409,
    "duplicatePaymentWindowSeconds": 900,
    "recommendedClientTimeoutSeconds": 300
  },
  "product": "social-search",
  "success": false,
  "priceUSD": 0.5,
  "resource": {
    "url": "https://sippar.network/api/sippar/sell/social-search",
    "tags": [
      "x402",
      "sippar",
      "social-search"
    ],
    "mimeType": "application/json",
    "description": "What people are publicly saying about a topic, across Reddit, YouTube and LinkedIn in one call. Returns Sippar's own cited answer plus links to the posts, not the posts themselves. Follow the citations to read them at the source. No account, API key or contract on any platform. Coverage is best-effort and point-in-time; a platform with nothing to say is reported as such rather than dropped.",
    "serviceName": "Social Listening"
  },
  "termsUrl": "https://sippar.network/api/sippar/sell/terms",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "query": "what are people saying about Cursor"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "query": "what are people saying about Cursor",
            "answer": "Reddit is where the product talk lives this week: usage caps [reddit:3] and who is actually making money with it [reddit:2]. YouTube argues the bigger AI pair-programming question [youtube:0].",
            "takeaway": "Pricing and usage caps dominate the current conversation.",
            "citations": [
              {
                "tag": "[reddit:3]",
                "url": "https://reddit.com/...",
                "title": "Hit the usage cap again",
                "platform": "reddit"
              }
            ],
            "platforms": [
              {
                "ok": true,
                "rows": 7,
                "platform": "reddit"
              },
              {
                "ok": true,
                "rows": 50,
                "platform": "youtube"
              },
              {
                "ok": true,
                "rows": 10,
                "platform": "linkedin"
              }
            ],
            "relevance": {
              "total": 67,
              "onBrand": 64,
              "verdict": "clear"
            },
            "disclaimer": "Coverage is best-effort and point-in-time.",
            "provenance": "Rows retrieved from public posts via a scraping-based supplier."
          }
        }
      },
      "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": {
                "required": [
                  "query"
                ],
                "properties": {
                  "query": {
                    "type": "string",
                    "maxLength": 500,
                    "minLength": 3,
                    "description": "A brand, product or topic to search for. A brand name works best; a broad topic phrase returns rows that may be about something else, which the `relevance` block in the response reports rather than hides."
                  }
                }
              },
              "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"
              },
              "example": {
                "type": "object",
                "properties": {
                  "answer": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "The cited answer. NULL is a normal, successful outcome, not an error: it means the rows were retrieved and the citations are real, but no draft passed the citation and faithfulness checks, so none is offered. When answer is null, `answerUnavailable` explains it in words and the citations are still yours."
                  },
                  "citations": {
                    "type": "array",
                    "description": "One entry per cited row, with the tag used in `answer`, the platform, the title and the source URL."
                  },
                  "platforms": {
                    "type": "array",
                    "description": "Per-platform outcome and row count. A platform that returned nothing is reported with ok:false rather than omitted."
                  },
                  "relevance": {
                    "type": "object",
                    "description": "Whether the rows are about the subject named in `query`. `onBrand` of `total` rows matched; `otherMeaning` names the collision when the query is ambiguous. Read this before trusting the answer, since a caller cannot eyeball the rows."
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 5

{
  "error": "Payment Required",
  "rails": [
    {
      "how": "Pay the MPP challenge in the WWW-Authenticate header, retry with Authorization: Payment <credential>.",
      "rail": "tempo-mpp"
    },
    {
      "how": "Send 0.10 USDC on Base (chainId 8453) to 0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316 — either broadcast it yourself and retry with X-PAYMENT: <txHash>, or sign the \"exact\"-scheme authorization in accepts[] (EIP-3009 transferWithAuthorization) and retry with X-PAYMENT: <base64 x402 v2 PaymentPayload>; we settle that through the CDP facilitator.",
      "rail": "base-x402",
      "paymentRequirements": {
        "asset": {
          "symbol": "USDC",
          "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "decimals": 6
        },
        "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
        "amount": "100000",
        "chainId": 8453,
        "network": "base-mainnet",
        "description": "Token Market Data",
        "amountFormatted": "0.10 USDC"
      }
    },
    {
      "how": "Send 0.10 USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) on Solana mainnet to DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC, retry with X-PAYMENT: <transaction signature>. Each signature is accepted once.",
      "rail": "solana-x402",
      "paymentRequirements": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "payTo": "DqUsFZHpYNdCXYXp5ioFamRrvb7RmJitcomqMTHSUoFC",
        "amount": "100000",
        "scheme": "exact",
        "network": "solana-mainnet",
        "maxTimeoutSeconds": 120
      }
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x65C955A6d412162fb2e347780eEbdCb2b7Cdc316",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://sippar.network/api/sippar/sell/token-intel",
      "description": "Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change + volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener + on-chain reads; response includes the required \"Powered by Nansen API\" attribution). Optionally pin the exact contract address (body field \"address\") to skip ticker resolution — tickers are not unique. Neutral facts only — no ratings, no predictions, not investment advice.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 300
    }
  ],
  "collect": {
    "collectUrl": "https://sippar.network/api/sippar/sell/token-intel/collect",
    "asyncHandle": {
      "how": "Send `Prefer: respond-async` (or `?async=1`, or `\"async\": true` in the body) with your payment. The response is an immediate 202 carrying the settlement key and this collect URL; the result is collected from there.",
      "recommended": false,
      "preferHeader": "respond-async",
      "acceptedStatus": 202
    },
    "collectMethod": "POST",
    "inFlightStatus": 409,
    "settlementKeyIs": "the exact value you sent in X-PAYMENT (tx hash, Solana signature, or signed x402 payload), or the MPP credential in Authorization",
    "rePresentingIsFree": true,
    "settlementKeyHeader": "X-PAYMENT",
    "ifYourClientTimesOut": [
      "Do NOT pay again. Your payment bought one delivery and it is held for 168 hours.",
      "POST the SAME payment header to https://sippar.network/api/sippar/sell/token-intel/collect to collect it. You will not be charged again.",
      "While the first call is still running, that returns 409 with a Retry-After; retry after it.",
      "A second payment for the same request inside the duplicate window is refused, NOT spent, so the money is still yours to present for something else."
    ],
    "collectableForSeconds": 604800,
    "settlementKeyHeaderMpp": "Authorization",
    "duplicatePaymentRefusedStatus": 409,
    "duplicatePaymentWindowSeconds": 900,
    "recommendedClientTimeoutSeconds": 300
  },
  "product": "token-intel",
  "success": false,
  "priceUSD": 0.1,
  "resource": {
    "url": "https://sippar.network/api/sippar/sell/token-intel",
    "tags": [
      "x402",
      "sippar",
      "token-intel"
    ],
    "mimeType": "application/json",
    "description": "Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change + volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener + on-chain reads; response includes the required \"Powered by Nansen API\" attribution). Optionally pin the exact contract address (body field \"address\") to skip ticker resolution — tickers are not unique. Neutral facts only — no ratings, no predictions, not investment advice.",
    "serviceName": "Token Market Data"
  },
  "termsUrl": "https://sippar.network/api/sippar/sell/terms",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "ticker": "BONK"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "asOf": "2026-07-17T12:00:00.000Z",
            "found": true,
            "token": {
              "fdvUsd": 900000000,
              "symbol": "BONK",
              "address": "DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263",
              "network": "solana",
              "priceUsd": 0.0000123,
              "change24hPct": -2.4,
              "liquidityUsd": 5123456,
              "marketCapUsd": 812345678,
              "tokenAgeDays": 812,
              "volume24hUsd": 9876543,
              "netflowUsd24h": 323457,
              "deploymentDate": "2023-12-25",
              "buyVolume24hUsd": 5100000,
              "sellVolume24hUsd": 4776543,
              "onchainTotalSupply": "88888888888888"
            },
            "ticker": "BONK",
            "sources": {
              "marketData": {
                "source": "nansen-token-screener",
                "retrievedAt": "2026-07-17T12:00:00.000Z"
              },
              "onchainSupply": {
                "source": "solana-rpc",
                "retrievedAt": "2026-07-17T12:00:00.000Z"
              }
            },
            "disclaimer": "Factual market data only, accurate as of the stated timestamps. Not investment advice, not a valuation, not a recommendation to transact.",
            "resolution": "highest-mcap-above-floor",
            "attribution": {
              "url": "https://nansen.ai",
              "text": "Powered by Nansen API"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "required": [
                  "ticker"
                ],
                "properties": {
                  "ticker": {
                    "type": "string",
                    "pattern": "^\\$?[A-Za-z][A-Za-z0-9]{1,9}$",
                    "description": "Token ticker symbol, e.g. BONK or $WIF"
                  },
                  "address": {
                    "type": "string",
                    "description": "Optional contract address pin (EVM 0x… or Solana base58 mint). When set, the response resolves to exactly this contract instead of the highest-market-cap match — recommended, since tickers are not unique."
                  }
                }
              },
              "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"
              },
              "example": {
                "type": "object",
                "required": [
                  "ticker",
                  "found",
                  "asOf"
                ],
                "properties": {
                  "asOf": {
                    "type": "string",
                    "format": "date-time"
                  },
                  "found": {
                    "type": "boolean"
                  },
                  "token": {
                    "type": "object",
                    "properties": {
                      "fdvUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "symbol": {
                        "type": "string"
                      },
                      "address": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "priceUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "change24hPct": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "liquidityUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "marketCapUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "tokenAgeDays": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "volume24hUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "netflowUsd24h": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "deploymentDate": {
                        "type": [
                          "string",
                          "null"
                        ]
                      },
                      "buyVolume24hUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "sellVolume24hUsd": {
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "onchainTotalSupply": {
                        "type": [
                          "string",
                          "null"
                        ]
                      }
                    }
                  },
                  "ticker": {
                    "type": "string"
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "resolution": {
                    "enum": [
                      "address-pinned",
                      "highest-mcap-above-floor"
                    ],
                    "type": "string",
                    "description": "How the token row was selected. Ticker-only lookups use a highest-market-cap-above-liquidity-floor heuristic (a dust filter, not identity verification — verify token.address); pass the optional \"address\" input to pin the exact contract."
                  },
                  "attribution": {
                    "type": "object",
                    "description": "Required \"Powered by Nansen API\" attribution — do not strip."
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

82/100 Solid

#240 of 386 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability
98.6% uptime 30d
Compliance
A 14/14 checks pass
Price
$0.05 to $0.50 p88 in Data
Risk
clean no risk flag
Traction
$2.22 30d 5 buyers, top buyer 97% (address, not entity)
14/14 compliance checks
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-08-31. Last up 2026-10-16.

── 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, 98.6% uptime 30d, 414ms response p95, x402 compliance 14 of 14, $0.05 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 386 listings, this one among them: the same 386 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($2.22, 30 tx). Traction is a conservative undercount; first settlement seen 2026-07-17.

All measured facts

What it does

Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the required "Powered by Nansen API" attribution). Neutral facts only, no ratings, no predictions, not investment advice.

Sippar Token Market Data 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: 2026-09-17 to 2026-10-16 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: . Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

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

x402 List home · Services · Data

uptime · latest daily rollup
100%
uptime 7d
97.6%
uptime 30d
98.6%
uptime 90d
96.8%
response p95
414ms
avg response
285ms
total checks
2,733

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

price (min)
$0.05
price (max)
$0.50
category percentile (min)
p88 in Data
category percentile (max)
p86 in Data
endpoints / prices
5 / 5
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
231d
registrar
GoDaddy.com, LLC
hosting
custom
domain created
2026-02-23

Identity facts, not a risk score.

assessment volume 30d
$2.22
exact assessment volume 30d (USD)
2.2226999999999997
assessment recorded at (UTC)
2026-10-16T12:14:06.606Z
buyers 30d
5
settlements 30d
30
measured since
2026-07-17 (start of our harvest window)
last settlement
2026-10-16
top buyer share
97% of 30d volume (address, not entity)
top 3 buyers share
99% of 30d volume (addresses, not entities)
concentrated volume
no
trend 7d vs 30d
4.25x the 30d daily rate
networks
eip155:8453
volume all-time
$4.19
settlements all-time
39
median settlement 30d
$0.055
max settlement 30d
$0.50

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

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

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

member since
2026-07-18
Recent checks
Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)StatusHTTPResponseEndpoints
Online402129ms5
Online402179ms5
Online402127ms5
Online40296ms5
Online402183ms5
Online402150ms5
Online402190ms5
Online40290ms5
Online402193ms5
Online402281ms5
Online402172ms5
Online402152ms5
Online402267ms5
Offlineno response2000ms0
Online402232ms5
Online402215ms5
Online402221ms5
Online402311ms5

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $2.22, peak $2.39 on 10-16*
volume no data in the payload
Distinct buyers per dayDistinct buyers per day
Uptime 17 of 29 completed days below 100%
uptime below 100%, to scale
Volume 30d
$2.22
Uptime
17 of 29 completed days below 100%
Daily on-chain settlement volume in US dollars, 2026-09-17 to 2026-10-16; highest day $2.39 on 10-16*; 27 days have no data in the payload; distinct buyers per day
More charts
Response time daily average, ms min 167ms, avg 287ms, max 477ms

09-17 to 10-16* UTC

Scores over time

x402 compliance low 14/14, high 14/14

09-17 to 10-16* UTC

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

09-17 to 10-16* UTC

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

09-17 to 10-16* UTC

Scores: one day per column, 09-17 to 10-16*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/sippar-token-market-data/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: $3.81, peak $2.39 on 10-16*. 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: 2026-09-17 to 2026-10-16 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, 2026-09-17 to 2026-10-16: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
DayVolumeBuyersSettlementsUptimeResponseCompliancePrice percentileSite signals
2026-09-17no datano datano data100%267.90ms14/14p874/6
2026-09-18no datano datano data98.89%243.80ms14/14p874/6
2026-09-19no datano datano data100%237.22ms14/14p874/6
2026-09-20no datano datano data95.56%246.49ms14/14p874/6
2026-09-21no datano datano data100%281.32ms14/14p874/6
2026-09-22$0.021197.78%456.42ms14/14p874/6
2026-09-23no datano datano data100%271.90ms14/14p874/6
2026-09-24no datano datano data98.89%316.45ms14/14p874/6
2026-09-25no datano datano data97.78%286.63ms14/14p874/6
2026-09-26no datano datano data100%335.01ms14/14p864/6
2026-09-27no datano datano data100%281.17ms14/14p864/6
2026-09-28no datano datano data98.89%170.52ms14/14p864/6
2026-09-29no datano datano data100%196.20ms14/14p874/6
2026-09-30no datano datano data98.89%226.01ms14/14p874/6
2026-10-01no datano datano data100%231.00ms14/14p874/6
2026-10-02no datano datano data100%166.79ms14/14p874/6
2026-10-03no datano datano data100%174.56ms14/14p874/6
2026-10-04no datano datano data98.89%288.63ms14/14p874/6
2026-10-05no datano datano data98.88%256.60ms14/14p874/6
2026-10-06no datano datano data97.78%290.02ms14/14p874/6
2026-10-07no datano datano data98.89%354.78ms14/14p874/6
2026-10-08no datano datano data93.33%407.56ms14/14p884/6
2026-10-09no datano datano data98.89%341.62ms14/14p884/6
2026-10-10no datano datano data95.56%477.05ms14/14p884/6
2026-10-11no datano datano data100%354.36ms14/14p884/6
2026-10-12no datano datano data92.22%425.24ms14/14p884/6
2026-10-13no datano datano data100%272.76ms14/14p884/6
2026-10-14no datano datano data97.78%263.76ms14/14p884/6
2026-10-15$1.4031498.89%221.57ms14/14p884/6
2026-10-16*$2.3925098.44%253.16ms14/14p884/6

Alternatives in Data

SniperX•x402 strong 97/100 99.9% up 30d $523.09 30d
claw402 strong 96/100 100% up 30d $1.1k 30d
glim.sh strong 95/100 100% up 30d $28.20 30d
cn402 strong 94/100 100% up 30d $39.45 30d
twit.sh strong 93/100 100% up 30d $44.14 30d

5 of 385 other ranked services in Data, ordered by the same measured score.

see the whole category

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