# Cerwal Broken Link Checker

> Cerwal Broken Link Checker is a paid API for AI agents from cerwal.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Checks a URL for broken links up to a specified maximum count, returning link status data

## Facts

- Endpoint: POST https://cerwal.vercel.app/api/broken
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cerwal-broken-link-checker-53e9fe3b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PybZH035VSjPRdfCET8E-

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 cerwal-broken-link-checker-53e9fe3b -d '<json body>'
```

Example prompt: Can you check https://example.com for broken links and scan up to 50 links on that page?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-use broken link checker that requires no subscription or API key setup — just USDC payment via x402. Best for one-off or infrequent link audits on individual pages rather than full-site crawls.

## Known failure modes

- Invalid or unreachable URL returns error or failed success flag
- maxLinks set too low may miss broken links further down the page
- Payment failure via x402 prevents request from completing
- The /api/broken path may itself be broken or misconfigured given the suspicious endpoint name
- Timeout if the target page is slow to load
- Rate limiting or anti-bot measures on the target site may block crawling

## How this service works

Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.

## Output

Returns a JSON object with a success boolean and a data object containing details about the links found and their status (broken or working) on the scanned page.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to check"
  },
  "maxLinks": {
   "type": "number",
   "description": "Max links to check"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cerwal-broken-link-checker-53e9fe3b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cerwal.vercel.app](https://www.zero.xyz/host/cerwal.vercel.app/llms.txt)