{
  "x402Version": 2,
  "id": 53076,
  "slug": "53076",
  "resource": "https://api.provenpaid.com/v1/check",
  "description": "Call before paying an unfamiliar x402 endpoint to check that it is real and actually gets paid. Pass ?url=<endpoint URL>. ProvenPaid probes the endpoint without paying, validates its x402 challenge (v1/v2; MPP detected) and reads public Base data for its receiving address: distinct payers, repeat-payer share, payer concentration and coverage, each with source and timestamp. Evidence, not a verdict. Not charged for invalid or unsafe URLs.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x528ea612C35c1d77eEf259A3e5FD7903fed3c42c",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "url": "https://api.example.com/paid-endpoint"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "checked_at": 1791331200,
            "methodology": "/methodology",
            "onchain": [
              {
                "all_usdc_in": {
                  "distinct_payers": 17,
                  "transfers": 131
                },
                "coverage": {
                  "complete": true,
                  "fraction": 1
                },
                "excluded_payers": 0,
                "network": "eip155:8453",
                "pay_to": "0x1111111111111111111111111111111111111111",
                "status": "ok",
                "x402_style": {
                  "distinct_payers": 14,
                  "median_amount_usdc": 0.01,
                  "repeat_payer_share": 0.5,
                  "top1_payer_share": 0.3,
                  "transfers": 120
                }
              }
            ],
            "probe": {
              "challenge": {
                "offers": [
                  {
                    "amount_atomic": 10000,
                    "network": "eip155:8453",
                    "pay_to": "0x1111111111111111111111111111111111111111",
                    "scheme": "exact"
                  }
                ],
                "version": 2
              },
              "rails": [
                "x402:v2"
              ],
              "status": 402,
              "valid": true
            },
            "url": "https://api.example.com/paid-endpoint"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "url": {
                    "description": "Public http(s) URL of the paid agent endpoint to check (x402 or MPP).",
                    "maxLength": 2048,
                    "type": "string"
                  }
                },
                "required": [
                  "url"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "api.provenpaid.com",
  "lastUpdated": "2026-10-09T00:34:25.745Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-09T00:34:25.469Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "url": "https://api.example.com/paid-endpoint"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checked_at": 1791331200,
              "methodology": "/methodology",
              "onchain": [
                {
                  "all_usdc_in": {
                    "distinct_payers": 17,
                    "transfers": 131
                  },
                  "coverage": {
                    "complete": true,
                    "fraction": 1
                  },
                  "excluded_payers": 0,
                  "network": "eip155:8453",
                  "pay_to": "0x1111111111111111111111111111111111111111",
                  "status": "ok",
                  "x402_style": {
                    "distinct_payers": 14,
                    "median_amount_usdc": 0.01,
                    "repeat_payer_share": 0.5,
                    "top1_payer_share": 0.3,
                    "transfers": 120
                  }
                }
              ],
              "probe": {
                "challenge": {
                  "offers": [
                    {
                      "amount_atomic": 10000,
                      "network": "eip155:8453",
                      "pay_to": "0x1111111111111111111111111111111111111111",
                      "scheme": "exact"
                    }
                  ],
                  "version": 2
                },
                "rails": [
                  "x402:v2"
                ],
                "status": 402,
                "valid": true
              },
              "url": "https://api.example.com/paid-endpoint"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "url": {
                      "description": "Public http(s) URL of the paid agent endpoint to check (x402 or MPP).",
                      "maxLength": 2048,
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "api.provenpaid.com",
    "manifest_name": "api.provenpaid.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-13T15:56:53.641Z"
  },
  "exampleResponse": {
    "example": {},
    "type": "string"
  }
}