Orcpin

Signed statement of account for an agent wallet: every outgoing USDC settlement in a window, read independently from the public Base chain, totalled by counterparty and by day, block-anchored and ed25519-signed so anyone can verify it without Orcpin. Optionally attests the requester's own meter figures as reported, by digest, kept apart from the verified chain facts. The books a wallet does not keep. Counts and amounts only, never advice; nothing stored.

OtherLiveeip155:8453Exactvia cdp
Orcpin LedgerAccountingReconciliationAuditAgents
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far.
$158.61
Verified settled volume
137 settlements proven x402 by their on-chain EIP-3009 marker.
$5.00
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-16 03:41Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": {
    "catalog": "https://orcpin.dev/catalog",
    "openapi": "https://orcpin.dev/openapi.json",
    "methodology": "https://orcpin.dev/methodology"
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
      "amount": "5000000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "message": "GET is not supported on /v1/statement; this resource is payable over x402 via POST. The price and input schema below are the ones POST /v1/statement will charge and expect.",
  "resource": {
    "url": "https://orcpin.dev/v1/statement",
    "tags": [
      "Orcpin Ledger",
      "accounting",
      "reconciliation",
      "audit",
      "agents",
      "x402"
    ],
    "iconUrl": "https://orcpin.com/orcpin-logo.png",
    "mimeType": "application/json",
    "description": "Signed statement of account for an agent wallet: every outgoing USDC settlement in a window, read independently from the public Base chain, totalled by counterparty and by day, block-anchored and ed25519-signed so anyone can verify it without Orcpin. Optionally attests the requester's own meter figures as reported, by digest, kept apart from the verified chain facts. The books a wallet does not keep. Counts and amounts only, never advice; nothing stored.",
    "serviceName": "Orcpin"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "since": "2026-09-01",
            "until": "2026-09-30",
            "wallet": "0x54e100000000000000000000000000000000f4e0"
          },
          "type": "http",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "spec": "statement",
            "as_of": {
              "block": 51300000,
              "chain": "eip155:8453"
            },
            "signed": true,
            "wallet": "0x54e100000000000000000000000000000000f4e0",
            "window": {
              "since": "2026-09-01",
              "until": "2026-09-30"
            },
            "verified": {
              "usd": 3.61,
              "settlements": 50,
              "by_counterparty": [
                {
                  "usd": 0.03,
                  "pay_to": "0x8b1c…6085",
                  "seller": "Orcpin",
                  "resources": [
                    {
                      "url": "https://orcpin.dev/v1/endpoint-reliability",
                      "price_usd": 0.01,
                      "reliability": {
                        "sample_size": 1441,
                        "latency_p50_ms": 250
                      },
                      "matches_settlement_amounts": true
                    }
                  ],
                  "settlements": 2
                }
              ]
            },
            "signature": {
              "alg": "ed25519",
              "signature": "…128 hex…",
              "public_key": "…64 hex…"
            },
            "disclaimer": "Counts and amounts from public on-chain data; not advice; nothing stored. …",
            "enrichment": {
              "resolved": 9,
              "counterparties": 14
            },
            "schema_version": "statement-v1",
            "representations": {
              "supplied": false
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "wallet"
                ],
                "properties": {
                  "since": {
                    "type": "string",
                    "description": "Window start, YYYY-MM-DD (UTC). Requires `until`. Default: 30 days before `until`."
                  },
                  "until": {
                    "type": "string",
                    "description": "Window end, YYYY-MM-DD (UTC). Default: today — only when `since` is also omitted; send both bounds or neither."
                  },
                  "wallet": {
                    "type": "string",
                    "description": "The agent wallet, 0x + 40 hex."
                  },
                  "representations": {
                    "type": "object",
                    "required": [
                      "meter_digest",
                      "metered_calls",
                      "delivered_calls",
                      "delivered_usd"
                    ],
                    "properties": {
                      "meter_digest": {
                        "type": "string"
                      },
                      "delivered_usd": {
                        "type": "number"
                      },
                      "metered_calls": {
                        "type": "number"
                      },
                      "delivered_calls": {
                        "type": "number"
                      }
                    },
                    "description": "Optional figures from the requester's own meter, attested as reported by digest and never verified: sha256 of the meter records in the window, metered call count, delivered call count, delivered USD."
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "as_of": {
                    "type": "object"
                  },
                  "signed": {
                    "type": "boolean"
                  },
                  "wallet": {
                    "type": "string"
                  },
                  "window": {
                    "type": "object"
                  },
                  "verified": {
                    "type": "object"
                  },
                  "signature": {
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "reconciliation": {
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "schema_version": {
                    "type": "string"
                  },
                  "representations": {
                    "type": "object"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "retry_with": {
    "url": "https://orcpin.dev/v1/statement",
    "body": {
      "since": "2026-09-01",
      "until": "2026-09-30",
      "wallet": "0x54e100000000000000000000000000000000f4e0"
    },
    "method": "POST",
    "content_type": "application/json"
  },
  "x402Version": 2,
  "method_required": "POST"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

5USDC≈ $5 USD
on Base · exact scheme

Pay 5 USDC on Base to 0x8B1C…c6085. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
    "amount": "5000000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "since": "2026-09-01",
          "until": "2026-09-30",
          "wallet": "0x54e100000000000000000000000000000000f4e0"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "spec": "statement",
          "as_of": {
            "block": 51300000,
            "chain": "eip155:8453"
          },
          "signed": true,
          "wallet": "0x54e100000000000000000000000000000000f4e0",
          "window": {
            "since": "2026-09-01",
            "until": "2026-09-30"
          },
          "verified": {
            "usd": 3.61,
            "settlements": 50,
            "by_counterparty": [
              {
                "usd": 0.03,
                "pay_to": "0x8b1c…6085",
                "seller": "Orcpin",
                "resources": [
                  {
                    "url": "https://orcpin.dev/v1/endpoint-reliability",
                    "price_usd": 0.01,
                    "reliability": {
                      "sample_size": 1441,
                      "latency_p50_ms": 250
                    },
                    "matches_settlement_amounts": true
                  }
                ],
                "settlements": 2
              }
            ]
          },
          "signature": {
            "alg": "ed25519",
            "signature": "…128 hex…",
            "public_key": "…64 hex…"
          },
          "disclaimer": "Counts and amounts from public on-chain data; not advice; nothing stored. …",
          "enrichment": {
            "resolved": 9,
            "counterparties": 14
          },
          "schema_version": "statement-v1",
          "representations": {
            "supplied": false
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "wallet"
              ],
              "properties": {
                "since": {
                  "type": "string",
                  "description": "Window start, YYYY-MM-DD (UTC). Requires `until`. Default: 30 days before `until`."
                },
                "until": {
                  "type": "string",
                  "description": "Window end, YYYY-MM-DD (UTC). Default: today — only when `since` is also omitted; send both bounds or neither."
                },
                "wallet": {
                  "type": "string",
                  "description": "The agent wallet, 0x + 40 hex."
                },
                "representations": {
                  "type": "object",
                  "required": [
                    "meter_digest",
                    "metered_calls",
                    "delivered_calls",
                    "delivered_usd"
                  ],
                  "properties": {
                    "meter_digest": {
                      "type": "string"
                    },
                    "delivered_usd": {
                      "type": "number"
                    },
                    "metered_calls": {
                      "type": "number"
                    },
                    "delivered_calls": {
                      "type": "number"
                    }
                  },
                  "description": "Optional figures from the requester's own meter, attested as reported by digest and never verified: sha256 of the meter records in the window, metered call count, delivered call count, delivered USD."
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "as_of": {
                  "type": "object"
                },
                "signed": {
                  "type": "boolean"
                },
                "wallet": {
                  "type": "string"
                },
                "window": {
                  "type": "object"
                },
                "verified": {
                  "type": "object"
                },
                "signature": {
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "disclaimer": {
                  "type": "string"
                },
                "reconciliation": {
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "schema_version": {
                  "type": "string"
                },
                "representations": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-16 03:41Z
Last indexed by Roundhouse
2026-09-24 14:50Z
Last enriched (probe, favicon, geo)
2026-09-16 07:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Orcpin and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Orcpin'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://orcpin.dev/v1/statement, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.