# Web Content Verification API

> Web Content Verification API is a paid API for AI agents from jhkvo-159-89-4-32.free.pinggy.net, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-11).

Verifies a URL's content and optionally tests a specific claim against the page, returning support status and cross-references

## Facts

- Endpoint: POST https://jhkvo-159-89-4-32.free.pinggy.net/verify?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-content-verification-api-f184d89f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H6wryxYCVWZmxfVrXb4_u

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-api-f184d89f -d '<json body>'
```

Example prompt: Can you verify whether this URL actually supports the claim that 'electric vehicles reduce lifetime carbon emissions by 50%'? The page is https://example.com/ev-report.

## When to prefer this

Choose this endpoint when you need a paid, receipted verification of a URL's content against a specific claim — particularly when you need a verifiable audit trail (receipt object) of the fact-check. Useful for agents that must document their research process or need cross-references returned alongside a support verdict.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status — verification cannot proceed
- Page content is behind a login or paywall — content cannot be read
- Claim field is ambiguous or too vague for meaningful content matching
- URL resolves to a blank or JavaScript-rendered page with no accessible text content
- Pinggy.io free hosting service may be temporarily unavailable causing endpoint downtime

## How this service works

Website hosted for free through pinggy.io&gt;
    &lt;meta name=

## Output

Returns the verified URL, a receipt object confirming the verification was performed, a 'supported' string indicating whether the page content supports the claim, and an array of cross-reference objects linking related evidence found on the page.

## 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-api-f184d89f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from jhkvo-159-89-4-32.free.pinggy.net](https://www.zero.xyz/host/jhkvo-159-89-4-32.free.pinggy.net/llms.txt)