{
  "x402Version": 2,
  "id": 13847,
  "slug": "13847",
  "resource": "https://witness-contractwitness-production.witness-test.workers.dev/v1/contract-witness",
  "description": "Produce a concrete independently revalidated JSON-Schema/MCP backward-compatibility witness before merge/deploy. UNKNOWN or NO_WITNESS_FOUND never means compatible.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xDC9AdC71cEEB973bedC9814272fB457c8c918FFF",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "mode": "input_backward_compatibility",
            "new_schema": {
              "type": "string"
            },
            "old_schema": {
              "type": "integer"
            }
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": false,
                "properties": {
                  "mode": {
                    "enum": [
                      "input_backward_compatibility",
                      "output_backward_compatibility"
                    ],
                    "type": "string"
                  },
                  "new_schema": {
                    "anyOf": [
                      {
                        "type": "boolean"
                      },
                      {
                        "additionalProperties": {},
                        "propertyNames": {
                          "type": "string"
                        },
                        "type": "object"
                      }
                    ]
                  },
                  "old_schema": {
                    "anyOf": [
                      {
                        "type": "boolean"
                      },
                      {
                        "additionalProperties": {},
                        "propertyNames": {
                          "type": "string"
                        },
                        "type": "object"
                      }
                    ]
                  },
                  "options": {
                    "additionalProperties": {},
                    "propertyNames": {
                      "type": "string"
                    },
                    "type": "object"
                  }
                },
                "required": [
                  "mode",
                  "old_schema",
                  "new_schema"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "payment-identifier": {
      "info": {
        "required": true
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "id": {
            "maxLength": 128,
            "minLength": 16,
            "pattern": "^[a-zA-Z0-9_-]+$",
            "type": "string"
          },
          "required": {
            "type": "boolean"
          }
        },
        "required": [
          "required"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar",
    "payment-identifier"
  ],
  "sourceHost": "witness-contractwitness-production.witness-test.workers.dev",
  "lastUpdated": "2026-08-28T19:50:36.411Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-08-28T19:50:35.956Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "witness-contractwitness-production.witness-test.workers.dev",
    "manifest_name": "witness-contractwitness-production.witness-test.workers.dev",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}