{
  "x402Version": 2,
  "id": 41651,
  "slug": "41651",
  "resource": "https://factstamp.agentrails.workers.dev/watch",
  "description": "Buy a standing re-check of one citation or one package version, when an answer has to stay true rather than be true once: re-checked every day for 30 days. US$0.50 the month — 1.7 cents a check, under a 2-cent lookup. The first check is answered and signed on purchase, and each real change (a retraction, a new advisory, a yanked version) gets its own signed receipt. Pay per call here, or redeem a prepaid pack code (10 credits). Returns a read URL and a token shown once.",
  "type": "http",
  "resourceType": "Payments",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "500000",
      "amountUsd": 0.5,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "additionalProperties": true,
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "const": "json"
      }
    },
    "required": [
      "type",
      "example"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "kind": "citation",
            "subject": "10.1038/nature12373",
            "webhook": "https://example.com/factstamp/hook"
          },
          "bodyType": "application/json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "expires_at": "2026-11-05T06:30:00.000Z",
            "kind": "citation",
            "next_check_at": "2026-10-07T06:30:00.000Z",
            "paid_with": {
              "list_price_usd": 0.5,
              "rail": "x402_pay_per_call",
              "settlement": {
                "success": true
              }
            },
            "read_url": "https://factstamp.agentrails.workers.dev/watch/9f2c1ab4d0e57718",
            "receipt_url": "https://factstamp.agentrails.workers.dev/r/8bd1f0a4c9e27715",
            "seeded_verdict": "verified",
            "subject": "10.1038/nature12373",
            "token": "fw_9d1c… (shown once)",
            "watch_id": "9f2c1ab4d0e57718"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "input": {
            "additionalProperties": true,
            "properties": {
              "body": {
                "type": "object"
              },
              "bodyType": {
                "const": "application/json"
              },
              "method": {
                "const": "POST"
              },
              "type": {
                "const": "http"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "additionalProperties": true,
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "const": "json"
              }
            },
            "required": [
              "type",
              "example"
            ],
            "type": "object"
          }
        },
        "required": [
          "input",
          "output"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "factstamp.agentrails.workers.dev",
  "lastUpdated": "2026-10-05T21:24:35.386Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-05T21:24:35.231Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "kind": "citation",
              "subject": "10.1038/nature12373",
              "webhook": "https://example.com/factstamp/hook"
            },
            "bodyType": "application/json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "expires_at": "2026-11-05T06:30:00.000Z",
              "kind": "citation",
              "next_check_at": "2026-10-07T06:30:00.000Z",
              "paid_with": {
                "list_price_usd": 0.5,
                "rail": "x402_pay_per_call",
                "settlement": {
                  "success": true
                }
              },
              "read_url": "https://factstamp.agentrails.workers.dev/watch/9f2c1ab4d0e57718",
              "receipt_url": "https://factstamp.agentrails.workers.dev/r/8bd1f0a4c9e27715",
              "seeded_verdict": "verified",
              "subject": "10.1038/nature12373",
              "token": "fw_9d1c… (shown once)",
              "watch_id": "9f2c1ab4d0e57718"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "body": {
                  "type": "object"
                },
                "bodyType": {
                  "const": "application/json"
                },
                "method": {
                  "const": "POST"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type",
                "example"
              ],
              "type": "object"
            }
          },
          "required": [
            "input",
            "output"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "factstamp.agentrails.workers.dev",
    "manifest_name": "factstamp.agentrails.workers.dev",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {},
    "type": null
  }
}