# Webcap Web Audit API

> Webcap Web Audit API is a paid API for AI agents from webcap.shoutsid.fyi, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Audits a URL for SEO metadata and Open Graph presence, returning structured analysis of page health signals

## Facts

- Endpoint: GET https://webcap.shoutsid.fyi/v1/x402/audit?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/webcap-web-audit-api-1c5b04b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-TIg_desgVYx_BPV9YgUT

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 webcap-web-audit-api-1c5b04b9
```

Example prompt: Can you run an SEO audit on https://example.com and tell me if the page has a valid title tag and Open Graph metadata set up correctly?

## When to prefer this

Choose this endpoint when you need a quick, structured SEO and Open Graph metadata audit for a specific URL without setting up an account or API key. It is ideal for one-off or automated per-page checks in agent workflows that need to verify page readiness for social sharing or search indexing. It is not suited for full site crawls, screenshot capture, or deep content extraction.

## Known failure modes

- Invalid or unreachable URL returns an error or empty audit fields
- Private/localhost URLs may be blocked or return no data
- Pages behind authentication walls may not be fully audited
- Payment failure results in 402 response before audit is performed
- Very slow pages may time out before metadata is extracted

## How this service works

Screenshot any URL. Extract structured data. Monitor for changes. Developer API with pay-per-call pricing — no API keys, no accounts.

## Output

Returns a JSON object with an audit section containing: SEO title analysis (presence, length, validity), Open Graph tag presence (e.g. og:title), total link count on the page, and the audited URL. Also includes payment metadata (payer address and price in USDC units).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "The page to audit"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "audit": {
   "og": {
    "present": {
     "title": true
    }
   },
   "seo": {
    "title": {
     "ok": true,
     "length": 13,
     "present": true
    }
   },
   "url": "https://example.com",
   "links": {
    "total": 1
   }
  },
  "payment": {
   "payer": "0x000000000000000000000000000000000000dEaD",
   "priceUsdcUnits": 2000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/webcap-web-audit-api-1c5b04b9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from webcap.shoutsid.fyi](https://www.zero.xyz/host/webcap.shoutsid.fyi/llms.txt)