{
  "x402Version": 2,
  "id": 32603,
  "slug": "32603",
  "resource": "https://gblin.digital/api/x402/seal",
  "description": "Call after your agent completes an action it may later have to prove: seal the hashes of its input and output (only your action label and meta are published) into GBLIN's signed append-only transparency log and get a portable receipt: Ed25519 signature, RFC 6962 inclusion proof, C2SP signed checkpoint; root anchored daily on Base (EAS). Proves existence and time, not correctness. Free reads and demo: gblin-mcp.gblin-mcp-worker.workers.dev/log",
  "type": "http",
  "resourceType": "MCP Tool",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x0ebA5d314F4f5Dcb7A094953Fa9311a45172dd1B",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "4500",
      "amountUsd": 0.0045,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "action": "summarise-contract",
            "input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "checkpoint": "<C2SP signed note>",
            "format": "gblin-receipt/v1",
            "inclusion_proof": [
              "<base64 node>",
              "<base64 node>"
            ],
            "index": 42,
            "leaf": "<base64 sha256(0x00 || canonical)>",
            "payload": {
              "action": "summarise-contract",
              "index": 42,
              "input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
              "log": "gblin.digital/receipts-log",
              "output_hash": null,
              "ts": "2026-08-30T09:00:00.000Z",
              "v": 1
            },
            "root": "<base64 Merkle root>",
            "signature": "<base64 Ed25519 over the canonical record>",
            "tree_size": 43,
            "verifier_key": "gblin.digital/receipts-log+00c6e18c+...",
            "verify": "offline: see verify-receipt.mjs in github.com/gblinproject/gblin-treasury-risk-regime (zero deps)"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "properties": {
                  "action": {
                    "description": "Short public label for what the AI did. PUBLISHED in the log: identifiers only, never secrets.",
                    "maxLength": 128,
                    "type": "string"
                  },
                  "agent_id": {
                    "description": "Your agent identifier (optional). PUBLISHED.",
                    "maxLength": 128,
                    "type": "string"
                  },
                  "input_hash": {
                    "description": "sha256 of your input, 64 hex chars (0x prefix optional)",
                    "pattern": "^(0x)?[0-9a-fA-F]{64}$",
                    "type": "string"
                  },
                  "meta": {
                    "description": "Extra JSON object as a string (optional). PUBLISHED.",
                    "maxLength": 512,
                    "type": "string"
                  },
                  "output_hash": {
                    "description": "sha256 of your output, 64 hex chars (optional)",
                    "pattern": "^((0x)?[0-9a-fA-F]{64})?$",
                    "type": "string"
                  },
                  "tool": {
                    "description": "Tool or model used (optional). PUBLISHED.",
                    "maxLength": 128,
                    "type": "string"
                  }
                },
                "required": [
                  "action",
                  "input_hash"
                ],
                "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": "gblin.digital",
  "lastUpdated": "2026-10-11T06:18:07.351Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-10-11T06:18:07.186Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "action": "summarise-contract",
              "input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "checkpoint": "<C2SP signed note>",
              "format": "gblin-receipt/v1",
              "inclusion_proof": [
                "<base64 node>",
                "<base64 node>"
              ],
              "index": 42,
              "leaf": "<base64 sha256(0x00 || canonical)>",
              "payload": {
                "action": "summarise-contract",
                "index": 42,
                "input_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
                "log": "gblin.digital/receipts-log",
                "output_hash": null,
                "ts": "2026-08-30T09:00:00.000Z",
                "v": 1
              },
              "root": "<base64 Merkle root>",
              "signature": "<base64 Ed25519 over the canonical record>",
              "tree_size": 43,
              "verifier_key": "gblin.digital/receipts-log+00c6e18c+...",
              "verify": "offline: see verify-receipt.mjs in github.com/gblinproject/gblin-treasury-risk-regime (zero deps)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "action": {
                      "description": "Short public label for what the AI did. PUBLISHED in the log: identifiers only, never secrets.",
                      "maxLength": 128,
                      "type": "string"
                    },
                    "agent_id": {
                      "description": "Your agent identifier (optional). PUBLISHED.",
                      "maxLength": 128,
                      "type": "string"
                    },
                    "input_hash": {
                      "description": "sha256 of your input, 64 hex chars (0x prefix optional)",
                      "pattern": "^(0x)?[0-9a-fA-F]{64}$",
                      "type": "string"
                    },
                    "meta": {
                      "description": "Extra JSON object as a string (optional). PUBLISHED.",
                      "maxLength": 512,
                      "type": "string"
                    },
                    "output_hash": {
                      "description": "sha256 of your output, 64 hex chars (optional)",
                      "pattern": "^((0x)?[0-9a-fA-F]{64})?$",
                      "type": "string"
                    },
                    "tool": {
                      "description": "Tool or model used (optional). PUBLISHED.",
                      "maxLength": 128,
                      "type": "string"
                    }
                  },
                  "required": [
                    "action",
                    "input_hash"
                  ],
                  "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"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "gblin.digital",
    "manifest_name": "gblin.digital",
    "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": "string"
  }
}