{
  "x402Version": 2,
  "id": 12359,
  "slug": "12359",
  "resource": "https://kairostamp.com/api/v1/robots-check",
  "description": "robots.txt check: fetches the origin's /robots.txt server-side and reports whether a given URL path is allowed or blocked for a user agent, with the matched rule, the robots URL, the HTTP status, a timestamp and a tamper-evident receipt. Query parameters: url (required), user_agent (optional, defaults to *). Only robots.txt is fetched; no crawling. Pair with GET /api/v1/link-map or /api/v1/sitemap to plan an allowed fetch.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xdB6F694aE695C632C82677a50593B46137808453",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "1000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "url": "https://example.com/pricing",
            "user_agent": "GPTBot"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "chain_hash": "d084fff3e5d852089814f7d4d3ffe9d04d1a39ce9d2e0573a95f24cf78fb584d",
            "decision": "allowed",
            "fetched_at": "2026-08-23T05:32:12.771Z",
            "matched_rule": "Allow: /pricing",
            "matched_user_agent": "*",
            "note": "Decision derived from the origin's /robots.txt as fetched at this timestamp. Only that one file is fetched; the target URL itself is not requested and nothing is crawled. robots.txt is a crawler convention, not a legal permission.",
            "receipt_id": "85cd424c-b68b-440e-8f4f-e02147799f30",
            "robots_status": 200,
            "robots_url": "https://example.com/robots.txt",
            "target_url": "https://example.com/pricing",
            "user_agent": "GPTBot"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "additionalProperties": false,
                "examples": [
                  {
                    "url": "https://example.com/pricing",
                    "user_agent": "GPTBot"
                  }
                ],
                "properties": {
                  "url": {
                    "description": "Public http/https URL whose path should be evaluated. Sent as the `url` query parameter.",
                    "examples": [
                      "https://example.com/"
                    ],
                    "format": "uri",
                    "maxLength": 2048,
                    "type": "string"
                  },
                  "user_agent": {
                    "description": "Crawler user-agent token to evaluate. Defaults to `*`.",
                    "examples": [
                      "*",
                      "GPTBot"
                    ],
                    "maxLength": 200,
                    "type": "string"
                  }
                },
                "required": [
                  "url"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "chain_hash": {
                    "description": "Tamper-evident hash-chain value.",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "decision": {
                    "enum": [
                      "allowed",
                      "blocked",
                      "unknown"
                    ],
                    "type": "string"
                  },
                  "fetched_at": {
                    "format": "date-time",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "matched_rule": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "matched_user_agent": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "note": {
                    "type": "string"
                  },
                  "receipt_id": {
                    "format": "uuid",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "robots_status": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "robots_url": {
                    "format": "uri",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "target_url": {
                    "format": "uri",
                    "type": "string"
                  },
                  "user_agent": {
                    "type": "string"
                  }
                },
                "required": [
                  "target_url",
                  "decision",
                  "robots_url"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "builder-code": {
      "info": {
        "s": [
          "cdp_sdk_server"
        ]
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "a": {
            "description": "App builder code",
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "s": {
            "description": "Service builder codes",
            "items": {
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "maxItems": 11,
            "type": "array"
          },
          "w": {
            "description": "Wallet builder code",
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          }
        },
        "type": "object"
      }
    },
    "eip2612GasSponsoring": {},
    "erc20ApprovalGasSponsoring": {}
  },
  "tags": [
    "bazaar",
    "builder-code",
    "eip2612GasSponsoring",
    "erc20ApprovalGasSponsoring"
  ],
  "sourceHost": "kairostamp.com",
  "lastUpdated": "2026-08-23T09:07:15.217Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-08-23T09:07:14.068Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "kairostamp.com",
    "manifest_name": "kairostamp.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}