# Agent Website Checker

> Agent Website Checker is a paid API for AI agents from agent-website-checker.paulo-ai-tools.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-19).

Checks a website URL and returns technical, SEO, and AI-agent readiness intelligence in a single fast call

## Facts

- Endpoint: GET https://agent-website-checker.paulo-ai-tools.workers.dev/api/check
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-website-checker-6059e11c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wcEuY6JJ-iArJ1SeOtcPC

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 agent-website-checker-6059e11c
```

Example prompt: Can you check https://openai.com for me and tell me its technical health, SEO signals, and whether it's ready for AI-agent access?

## When to prefer this

Choose this endpoint when you need fast, single-URL technical and SEO intelligence including AI-agent readiness signals — especially when x402 pay-per-call pricing is acceptable and you need results without setting up a full crawler or headless browser pipeline. Ideal for agents that need to pre-flight check a site before crawling, scraping, or interacting with it.

## Known failure modes

- Invalid or malformed URL returns an error — ensure the URL includes the scheme (https://)
- Target website is unreachable or returns a non-200 status, which may result in limited or empty analysis data
- Timeouts if the target site is very slow to respond
- Websites behind Cloudflare or bot-protection may return incomplete data
- Payment failure via x402 if the calling agent's wallet lacks sufficient USDC balance

## How this service works

Fast x402-payable website intelligence for technical, SEO and AI-agent readiness workflows.

## Output

Returns structured website intelligence including technical metadata (HTTP headers, status codes, response times), SEO signals (meta tags, page structure), and AI-agent readiness indicators (x402 support, crawlability, agent-relevant headers) for the requested URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-website-checker-6059e11c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-website-checker.paulo-ai-tools.workers.dev](https://www.zero.xyz/host/agent-website-checker.paulo-ai-tools.workers.dev/llms.txt)