Roundhouse

Orcpin

Single-trade T+1 settlement date, as a one-line GET: given a trade date and an as-of date, returns the settlement date and whether it has settled, on the versioned NYSE holiday calendar with SEC Rule 15c6-1 cited. The low-integration sibling of the batch settlement-dates route — no request body. A dates fact, never a violation determination. Nothing is stored.

TradingLiveeip155:8453Exactvia cdp
https://orcpin.dev/v1/settlement-date
Orcpin Trade LogTradingEquitiesSettlementT-plus-1
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 24 snapshots so far.
$158.61
Verified settled volume
137 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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 2026-08-17 19:38Z
—
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.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://orcpin.dev/v1/settlement-date",
    "tags": [
      "Orcpin Trade Log",
      "trading",
      "equities",
      "settlement",
      "t-plus-1"
    ],
    "iconUrl": "https://orcpin.com/orcpin-logo.png",
    "mimeType": "application/json",
    "description": "Single-trade T+1 settlement date, as a one-line GET: given a trade date and an as-of date, returns the settlement date and whether it has settled, on the versioned NYSE holiday calendar with SEC Rule 15c6-1 cited. The low-integration sibling of the batch settlement-dates route — no request body. A dates fact, never a violation determination. Nothing is stored.",
    "serviceName": "Orcpin"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "as_of": "2026-07-02",
            "trade_date": "2026-07-02"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "spec": "settlement-date",
            "as_of": "2026-07-02",
            "settled": false,
            "disclaimer": "Deterministic trading-day arithmetic on a caller-supplied trade; nothing is stored. …",
            "trade_date": "2026-07-02",
            "explanation": "Trade dated 2026-07-02 settles 2026-07-06 (T+1 on the nyse-2024-2027.v1 calendar); as of 2026-07-02 it is not yet settled. …",
            "methodology": "https://orcpin.dev/methodology#trade_log",
            "rule_citation": "SEC Rule 15c6-1 (as amended, effective 2024-05-28) … (cited as a published rule only)",
            "schema_version": "settlement-v1",
            "settlement_date": "2026-07-06",
            "calendar_version": "nyse-2024-2027.v1",
            "trading_days_until_settlement": 1
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "trade_date",
                  "as_of"
                ],
                "properties": {
                  "as_of": {
                    "type": "string",
                    "description": "Date to evaluate settled/unsettled against, YYYY-MM-DD."
                  },
                  "symbol": {
                    "type": "string",
                    "description": "Optional ticker, echoed back untouched."
                  },
                  "trade_date": {
                    "type": "string",
                    "description": "Execution date of the trade, YYYY-MM-DD."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "settled": {
                    "type": "boolean"
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "trade_date": {
                    "type": "string"
                  },
                  "rule_citation": {
                    "type": "string"
                  },
                  "schema_version": {
                    "type": "string"
                  },
                  "settlement_date": {
                    "type": "string"
                  },
                  "calendar_version": {
                    "type": "string"
                  },
                  "trading_days_until_settlement": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x8B1C…c6085. The signed payment is good for 5 minutes.

Paid to
0x8B1C…c6085
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "as_of": "2026-07-02",
          "trade_date": "2026-07-02"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "spec": "settlement-date",
          "as_of": "2026-07-02",
          "settled": false,
          "disclaimer": "Deterministic trading-day arithmetic on a caller-supplied trade; nothing is stored. …",
          "trade_date": "2026-07-02",
          "explanation": "Trade dated 2026-07-02 settles 2026-07-06 (T+1 on the nyse-2024-2027.v1 calendar); as of 2026-07-02 it is not yet settled. …",
          "methodology": "https://orcpin.dev/methodology#trade_log",
          "rule_citation": "SEC Rule 15c6-1 (as amended, effective 2024-05-28) … (cited as a published rule only)",
          "schema_version": "settlement-v1",
          "settlement_date": "2026-07-06",
          "calendar_version": "nyse-2024-2027.v1",
          "trading_days_until_settlement": 1
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "trade_date",
                "as_of"
              ],
              "properties": {
                "as_of": {
                  "type": "string",
                  "description": "Date to evaluate settled/unsettled against, YYYY-MM-DD."
                },
                "symbol": {
                  "type": "string",
                  "description": "Optional ticker, echoed back untouched."
                },
                "trade_date": {
                  "type": "string",
                  "description": "Execution date of the trade, YYYY-MM-DD."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "settled": {
                  "type": "boolean"
                },
                "disclaimer": {
                  "type": "string"
                },
                "trade_date": {
                  "type": "string"
                },
                "rule_citation": {
                  "type": "string"
                },
                "schema_version": {
                  "type": "string"
                },
                "settlement_date": {
                  "type": "string"
                },
                "calendar_version": {
                  "type": "string"
                },
                "trading_days_until_settlement": {
                  "type": "integer"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-17 19:38Z
Last indexed by Roundhouse
2026-09-16 19:40Z
Last enriched (probe, favicon, geo)
2026-09-12 10:45Z
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. 24 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/settlement-date, 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.