Run ONE named check against a response you paste

Answeringour last check, 2026-09-24

1 of 1checks answered this week

22 msmedian answer time

$0.004listed price per call

$0.004price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://10x402.com/lint/envelope/one

Category	Code and developer
Provider host	10x402.com
Networks	eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Payment schemes	exact
Self-reported calls, 30 days	4 from 2 payers (the provider's figure, not ours)

Our checks, last 30 days

Day	Result	HTTP	Asked	Time
2026-09-24	valid payment request	402	$0.004	22 ms

Example input (from the provider)

{
  "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"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "description": "a JSON object: { \"status\": 402, \"headers\": { \u2026 }, \"body\": \"\u2026\", \"check\": \"V2_B64_URLSAFE\" } \u2014 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 \u2014 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"
}

This page as JSON