# Web Content Verification via Pinggy

> Web Content Verification via Pinggy is a paid API for AI agents from ryfoc-159-89-4-32.free.pinggy.net, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-12).

Verifies a URL's content and optionally tests a specific claim against that page's content, returning cross-references and a receipt

## Facts

- Endpoint: POST https://ryfoc-159-89-4-32.free.pinggy.net/verify?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-content-verification-via-pinggy-dca504e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cL4I_3MA3Kreea2aDT3ew

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability web-content-verification-via-pinggy-dca504e0 -d '<json body>'
```

Example prompt: Can you verify that the page at https://example.com/article actually supports the claim 'the study involved 500 participants' — I want to know if the content backs that up with cross-references?

## When to prefer this

Use this endpoint when you need to programmatically verify whether a specific URL contains or supports a particular claim, especially for fact-checking, citation validation, or content auditing workflows. It is particularly useful when you need a structured receipt and cross-reference list rather than just a raw page scrape.

## Known failure modes

- URL is unreachable or returns a non-200 status, causing verification failure
- Page content is behind a login wall or CAPTCHA, preventing content access
- Claim is too vague or ambiguous to match against page text
- Pinggy tunnel may be offline or expired, returning connection errors
- Malformed URL input causes a validation error
- Page content is dynamically loaded via JavaScript and may not be fully captured

## How this service works

Website hosted for free through pinggy.io&gt;
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## Output

Returns the verified URL, a payment receipt, a 'supported' status string indicating whether the optional claim is backed by the page content, and an array of cross-reference objects found during verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string"
  },
  "claim": {
   "type": "string",
   "description": "optional claim to test against page content"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string"
  },
  "receipt": {
   "type": "object"
  },
  "supported": {
   "type": "string"
  },
  "crossReferences": {
   "type": "array",
   "items": {
    "type": "object"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web-content-verification-via-pinggy-dca504e0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ryfoc-159-89-4-32.free.pinggy.net](https://www.zero.xyz/host/ryfoc-159-89-4-32.free.pinggy.net/llms.txt)