{
  "x402Version": 2,
  "id": 6691,
  "slug": "6691",
  "resource": "https://witnessd.vip/api/witness",
  "description": "Independently fetch, hash, timestamp and archive a URL or API response; returns a signed certificate. Merkle-anchored on Base hourly. Neutral third-party evidence for agent commerce disputes.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xf058D8A375343DAA6967adF3ac6d425f3c9C8dfc",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "20000",
      "maxTimeoutSeconds": 120
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://api.coinbase.com/v2/prices/ETH-USD/spot"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "certificate_url": "https://witnessd.vip/api/certificate/ws_76cae2b76822b099d37882c4",
            "id": "ws_76cae2b76822b099d37882c4",
            "retrieve_url": "https://witnessd.vip/api/retrieve/ws_76cae2b76822b099d37882c4"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "properties": {
                  "url": {
                    "description": "The http(s) URL or API endpoint to witness right now",
                    "format": "uri",
                    "type": "string"
                  }
                },
                "required": [
                  "url"
                ],
                "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": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "witnessd.vip",
  "lastUpdated": "2026-09-17T06:18:21.655Z",
  "quality": {
    "calls30d": 8,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-09-17T06:18:21.179Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "witnessd.vip",
    "manifest_name": "witnessd.vip",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}