# Web Evidence Capture

> Web Evidence Capture is a paid API for AI agents from awlfi-64-118-156-55.run.pinggy-free.link, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-24).

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

## Facts

- Endpoint: POST https://awlfi-64-118-156-55.run.pinggy-free.link/evidence?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-evidence-capture-cec81f08
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FML6DN8EHQfM_lwMvWgPk

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-cec81f08 -d '<json body>'
```

Example prompt: Capture evidence for https://example.com/terms-of-service — I need a cryptographic hash and a snapshot of what the page currently shows, including its HTTP status and any links on the page.

## When to prefer this

Use this endpoint when you need a cryptographic proof-of-content for a public URL — especially for compliance audits, legal evidence gathering, change detection workflows, or creating tamper-evident snapshots. Prefer this over a plain HTTP fetch when the SHA-256 hash, HTTP status record, and structured metadata matter more than raw HTML.

## Known failure modes

- URL is unreachable or returns a non-200 status — httpStatus field will reflect the error code
- Target page requires JavaScript rendering — static fetch may not capture dynamic content
- Redirect chains may cause finalUrl to differ from input URL
- Large pages may time out before full content is captured
- Private or authentication-gated URLs will not be accessible

## How this service works

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

Returns the original URL, final redirected URL, HTTP status code, page title, content size in bytes, a SHA-256 hash of the content, a sample of links found on the page, a payment receipt object, and a changeDetection object for comparing against previous snapshots.

## 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-cec81f08/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from awlfi-64-118-156-55.run.pinggy-free.link](https://www.zero.xyz/host/awlfi-64-118-156-55.run.pinggy-free.link/llms.txt)