Api Endpoint

AttestPage

Use when an agent is about to give a user links or citations: send up to 10 URLs, and get back the status, redirect chain, final URL, title and hash of each, so a dead, moved or blocked link is caught first. A URL whose domain does not resolve is reported as dead and charged. US$0.005 per call; broken-link check for citations. 5 free calls a day.

Open interactive test console

Offering

Provider: vehcdj664efetfrsolne5umanq.srv.us
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Web Search Research
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://vehcdj664efetfrsolne5umanq.srv.us/v1/check/links
MIME type: application/json
First seen: 2026-10-16T02:01:31.612Z
Last seen: 2026-10-23T22:49:50.276Z
Tags: dead-links, link-checker, citations, broken-links, Verification

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:84532 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:84532",
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "amount": "5000",
    "payTo": "0x08dE2e056F6BE74162c400fF877449593579D1EA"
  }
]

Observed health

Status: Degraded
Latest latency: 30 ms
Average latency: 628 ms
HTTP status: 503
Last checked: 2026-11-02T06:12:05.095Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "body": {
    "urls": [
      "https://www.iana.org/help/example-domains",
      "https://www.iana.org/domains/reserved"
    ]
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "discoverable": true
}

Output 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": [
            "urls"
          ],
          "properties": {
            "urls": {
              "type": "array",
              "items": {
                "type": "string"
              },
              "maxItems": 10,
              "minItems": 1,
              "description": "1 to 10 http(s) URLs to check. Dead domains are reported as results; if none resolves, 422 and no charge."
            }
          },
          "additionalProperties": false
        },
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "discoverable": {
          "type": "boolean",
          "const": true
        }
      },
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "required": [
        "type"
      ],
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object",
          "required": [
            "results",
            "receipt"
          ],
          "properties": {
            "tier": {
              "type": "string"
            },
            "receipt": {
              "type": "string"
            },
            "results": {
              "type": "array",
              "description": "One entry per URL, each with server_ip, tls and headers (network evidence also signed into the receipt; null on an edge server). off_site_error: true when the URL redirected to another site that answers 4xx/5xx."
            }
          }
        }
      }
    }
  }
}