orcpin.dev

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": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://orcpin.dev/v1/endpoint-reliability",
    "tags": [
      "Orcpin Reliability",
      "infra",
      "monitoring",
      "uptime",
      "x402"
    ],
    "iconUrl": "https://orcpin.com/orcpin-logo.png",
    "mimeType": "application/json",
    "description": "x402 endpoint reliability pre-flight: factual service-delivery measurements of a target x402 endpoint before an agent pays it — reachability/uptime rate, valid-402 rate, response latency (p50/p95/p99), last status, and sampled paid delivery verification. Facts only (no trust score, no 'scam' label). Check whether an endpoint is live and delivers before spending on it.",
    "serviceName": "Orcpin"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "url": "https://example.com/v1/some-resource"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "url": "https://example.com/v1/some-resource",
            "spec": "endpoint-reliability",
            "as_of": "rolling_probes",
            "facts": {
              "latency_ms": {
                "p50": 250,
                "p95": 1000,
                "p99": 2500,
                "basis": "histogram"
              },
              "last_status": 402,
              "reachable_rate": 0.99,
              "valid_402_rate": 0.99,
              "delivery_verified": {
                "at": "2026-06-21T00:00:00.000Z",
                "samples": 8,
                "verified": true
              },
              "http_success_rate": 0.97,
              "consecutive_failures": 0
            },
            "flags": [],
            "status": "measured",
            "window": "rolling_60d",
            "disclaimer": "Independent service-delivery measurements of a public x402 endpoint. Facts only — not an endorsement, rating, or advice. See /terms.",
            "first_seen": "2026-05-20T00:00:00.000Z",
            "methodology": "https://orcpin.dev/methodology#endpoint_reliability",
            "sample_size": 142,
            "last_verified": "2026-06-22T00:00:00.000Z",
            "schema_version": "0.1.0"
          }
        }
      },
      "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": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "format": "uri",
                    "description": "Target x402 endpoint URL to read reliability facts for."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "facts": {
                    "type": "object"
                  },
                  "flags": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  "status": {
                    "type": "string"
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "sample_size": {
                    "type": "integer"
                  },
                  "schema_version": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "how_to_pay": {
    "docs": {
      "terms": "/terms",
      "catalog": "/catalog",
      "discovery": "/.well-known/x402",
      "methodology": "/methodology"
    },
    "client": "Recommended: the `@x402/fetch` npm package (v2+), which handles this envelope for you. Note: the unscoped `x402-fetch`/`x402` packages (1.2.0, last published 2026-04-16) predate CAIP-2 network ids and will reject this challenge with a schema error before signing.",
    "header": "PAYMENT-SIGNATURE",
    "signing": {
      "domain": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "standard": "EIP-3009 TransferWithAuthorization, signed as EIP-712 typed data"
    },
    "summary": "Sign one of the `accepts` entries as an EIP-3009 TransferWithAuthorization, base64-encode the envelope below, and retry this exact request with it in the `PAYMENT-SIGNATURE` request header (the x402 v1 name `X-PAYMENT` is honoured too).",
    "encoding": "base64(JSON) of the payload_template below",
    "amount_note": "`amount` is in atomic units; this asset has 6 decimals.",
    "amount_human": "$0.01 USDC",
    "payload_template": {
      "scheme": "exact",
      "network": "eip155:8453",
      "payload": {
        "signature": "0x… (EIP-712 signature over the authorization below)",
        "authorization": {
          "to": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
          "from": "0x… (your wallet address)",
          "nonce": "0x… (32 random bytes, never reused)",
          "value": "10000",
          "validAfter": "unix seconds, e.g. now - 60",
          "validBefore": "unix seconds, at most now + 300"
        }
      },
      "x402Version": 2
    },
    "header_also_honored": "X-PAYMENT"
  },
  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "resource": "https://orcpin.dev/v1/endpoint-reliability",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-09-23 20:43Z

Last indexed by Roundhouse

2026-09-24 11:15Z

Last enriched (probe, favicon, geo)

2026-09-16 17:15Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402