# Web Evidence Capture

> Web Evidence Capture is a paid API for AI agents from eymqg-159-89-4-32.run.pinggy-free.link, paid per call via x402, $0.005/call, status down (last checked 2026-09-19).

Fetches a URL and returns cryptographic evidence of its content, including a SHA-256 hash, HTTP status, page title, and change detection metadata.

## Facts

- Endpoint: POST https://eymqg-159-89-4-32.run.pinggy-free.link/evidence
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-evidence-capture-54e0bdcd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1ImeUJPb7WYqyXpUp7Gie

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-evidence-capture-54e0bdcd -d '<json body>'
```

Example prompt: Can you capture cryptographic evidence for https://example.com/terms — I need the SHA-256 hash, HTTP status, page title, and any change detection info to prove what was on that page right now?

## When to prefer this

Use this endpoint when you need cryptographic proof (SHA-256) of what a webpage served at a specific point in time — ideal for legal evidence, compliance auditing, change detection workflows, or verifying third-party content. Prefer this over generic scraping tools when tamper-evident hashing and change detection metadata are required alongside the raw content.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status (still reported but content may be empty)
- URL redirects to a login wall, returning evidence of a gated page rather than intended content
- Very large pages may result in truncated content or timeout
- Invalid URL format in input returns a 400-level error
- Target server blocks automated requests, resulting in misleading or empty content capture

## How this service works

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

Returns the original URL, final URL after redirects, HTTP status code, page title, content size in bytes, SHA-256 hash of the page content, a sample of links found on the page, a payment receipt object, and change detection metadata indicating whether the page differs from previous captures.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "http(s) URL to capture evidence for"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url",
  "contentSha256"
 ],
 "properties": {
  "url": {
   "type": "string"
  },
  "bytes": {
   "type": "integer"
  },
  "title": {
   "type": "string"
  },
  "receipt": {
   "type": "object"
  },
  "finalUrl": {
   "type": "string"
  },
  "httpStatus": {
   "type": "integer"
  },
  "linksSample": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "contentSha256": {
   "type": "string"
  },
  "changeDetection": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web-evidence-capture-54e0bdcd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eymqg-159-89-4-32.run.pinggy-free.link](https://www.zero.xyz/host/eymqg-159-89-4-32.run.pinggy-free.link/llms.txt)