{
  "x402Version": 2,
  "id": 8300,
  "slug": "8300",
  "resource": "https://10x402.com/lint/envelope/one",
  "description": "Run ONE named check against a response you paste",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x885E7BEF433eb78F5976b28A7c10739c98DB11E5",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "4000",
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "6Cg4g7rXQApimMc9wVJGLLZfHsvbwGpGrUpGDgyJ2RaP",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "4000",
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": "{\"status\":402,\"headers\":{\"content-type\":\"application/json\"},\"body\":\"{\\\"x402Version\\\":1,\\\"accepts\\\":[{\\\"scheme\\\":\\\"exact\\\",\\\"network\\\":\\\"base\\\",\\\"maxAmountRequired\\\":\\\"1000\\\",\\\"resource\\\":\\\"https://example.com/api/thing\\\",\\\"description\\\":\\\"an example paid endpoint\\\",\\\"mimeType\\\":\\\"application/json\\\",\\\"payTo\\\":\\\"0x0000000000000000000000000000000000000001\\\",\\\"maxTimeoutSeconds\\\":60,\\\"asset\\\":\\\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\\\",\\\"extra\\\":{\\\"name\\\":\\\"USD Coin\\\",\\\"version\\\":\\\"2\\\"},\\\"outputSchema\\\":{\\\"input\\\":{\\\"type\\\":\\\"http\\\",\\\"method\\\":\\\"POST\\\",\\\"discoverable\\\":true,\\\"bodyType\\\":\\\"text\\\",\\\"description\\\":\\\"the request body\\\"},\\\"output\\\":{\\\"type\\\":\\\"string\\\",\\\"description\\\":\\\"the response body\\\"}}}]}\",\"check\":\"V2_HEADER_PRESENT\"}",
          "bodyType": "text",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": "{\"check\":\"V2_HEADER_PRESENT\",\"applied\":true,\"passed\":false,\"finding\":{\"severity\":\"error\",\"code\":\"V2_HEADER_PRESENT\",\"message\":\"no PAYMENT-REQUIRED response header — this endpoint publishes no x402 v2 envelope.\",\"fix\":\"Add a PAYMENT-REQUIRED response header to the 402 carrying the standard-base64 JSON v2 envelope. This costs you DISCOVERY rather than payment, and the distinction is worth being precise about: @x402/core reads the header first but DOES fall back to a v1 body when there is none, so the current client generation can still pay you. What it cannot do is find you — CDP marks the PAYMENT-REQUIRED header a required indexing check, so a v1-only 402 is not catalogued at all, and a strictly-v2 client cannot pay it either. Keep the v1 body exactly as it is; the two versions share a 402 without either noticing the other.\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/core@2.23.0 dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — x402-fetch@1.x is still a live buyer population\"}]},\"regime\":\"bazaar\",\"severity\":\"error\",\"core\":false,\"sources\":[{\"kind\":\"spec\",\"ref\":\"specs/transports-v2/http.md:7-25 § Payment Required Signaling\"},{\"kind\":\"cdp-validator\",\"ref\":\"cdp-validator-toolshed.json preflight[6] payment_required_header (required)\"},{\"kind\":\"client-code\",\"ref\":\"@x402/core@2.23.0 dist/cjs/http/index.js:1620-1628 — the v2 client DOES fall back to a v1 body\"},{\"kind\":\"field-report\",\"ref\":\"x402-foundation/x402#3091 — x402-fetch@1.x is still a live buyer population\"}],\"summary\":{\"versions_detected\":[1],\"payTo\":\"0x0000000000000000000000000000000000000001\",\"network\":\"base\",\"price\":\"$0.001 (1000 atomic)\"},\"checks_run\":1}",
          "format": "application/json",
          "type": "text"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "description": "a JSON object: { \"status\": 402, \"headers\": { … }, \"body\": \"…\", \"check\": \"V2_B64_URLSAFE\" } — exactly one check id from GET /check, up to 256 KB",
                "maxLength": 262144,
                "type": "string"
              },
              "bodyType": {
                "const": "text",
                "type": "string"
              },
              "method": {
                "const": "POST",
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "additionalProperties": false,
            "properties": {
              "example": {
                "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full",
                "type": "string"
              },
              "format": {
                "const": "application/json",
                "description": "a JSON single-check report: check, applied, passed, the finding with its fix (or null), regime, sources and the envelope summary",
                "type": "string"
              },
              "type": {
                "const": "text",
                "type": "string"
              }
            },
            "required": [
              "type",
              "format"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "10x402.com",
  "lastUpdated": "2026-09-01T14:01:01.186Z",
  "quality": {
    "calls30d": 6,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-09-01T14:01:00.854Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "10x402.com",
    "manifest_name": "10x402.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}