{
  "x402Version": 2,
  "id": 6801,
  "slug": "6801",
  "resource": "https://api.agentmercantile.com/v1/x402-service-change-snapshot",
  "description": "Determine whether a previously accepted x402 service payment contract is still equivalent enough to proceed. Compares one live unpaid 402 challenge, using a caller-supplied GET or POST request shape, against a caller-held baseline bound to that request identity. Not uptime monitoring, a trust score, a webhook, a marketplace crawl, or a generic POST {} probe of every x402 resource.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xdb7b2b54f80479826222749a2ea73a8acc306e1e",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "description": "Determine whether a previously accepted x402 service payment contract is still equivalent enough to proceed. Compares one live unpaid 402 challenge, using a caller-supplied GET or POST request shape, against a caller-held baseline bound to that request identity. Not uptime monitoring, a trust score, a webhook, a marketplace crawl, or a generic POST {} probe of every x402 resource.",
        "input": {
          "body": {
            "method": "POST",
            "resource_url": "https://api.agentmercantile.com/v1/url-context"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "decision": "BASELINE_CREATED",
            "limitations": [
              "Caller holds the baseline. Direct-service 402 is payment authority."
            ],
            "machine": "VM08",
            "methodology_version": "x402-service-change-snapshot-0.1.0",
            "status": "OK"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "properties": {
                  "baseline": {
                    "description": "Optional caller-held reusable payment-contract baseline bound to this request identity.",
                    "type": "object"
                  },
                  "body": {
                    "description": "Optional JSON object for POST probes only.",
                    "type": "object"
                  },
                  "method": {
                    "description": "Required unpaid 402 probe method. Not inferred from discovery.",
                    "enum": [
                      "GET",
                      "POST"
                    ],
                    "type": "string"
                  },
                  "resource_url": {
                    "description": "One public HTTPS x402 resource URL on port 443.",
                    "format": "uri",
                    "type": "string"
                  }
                },
                "required": [
                  "resource_url",
                  "method"
                ],
                "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"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": true,
                "properties": {
                  "decision": {
                    "enum": [
                      "BASELINE_CREATED",
                      "CONTINUE",
                      "REVIEW",
                      "STOP",
                      "UNKNOWN"
                    ],
                    "type": "string"
                  },
                  "limitations": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "machine": {
                    "enum": [
                      "VM08"
                    ],
                    "type": "string"
                  },
                  "methodology_version": {
                    "enum": [
                      "x402-service-change-snapshot-0.1.0"
                    ],
                    "type": "string"
                  },
                  "status": {
                    "enum": [
                      "OK",
                      "PARTIAL",
                      "HOLD"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "status",
                  "machine",
                  "methodology_version",
                  "decision",
                  "limitations"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "api.agentmercantile.com",
  "lastUpdated": "2026-09-18T02:08:35.499Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-18T02:08:35.203Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "api.agentmercantile.com",
    "manifest_name": "api.agentmercantile.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"
  }
}