Paste a URL. The free check returns the verdict, how much the signals agree and one line of evidence. The same analysis in full, with every signal and the evidence behind it, is $0.01 per call in USDC on Base over x402.
Waiting for a URL.
| Verdict | What it says to an agent |
|---|---|
open | Fetches cleanly, robots allows the path, content is there. Use it. |
machine_readable | Open, and the page publishes structured data (JSON-LD) - prefer that over scraping text. |
robots_disallowed | robots.txt forbids the exact path for an agent. Do not fetch; look for an API or another source. |
bot_walled | A bot-management vendor fingerprints the request. Fetching fails or returns a challenge, not data. |
auth_required | 401/403 on a plain GET: there is a login in the way, not a paywall. |
js_rendered | The HTML carries no content without JavaScript - a plain fetch gets an empty shell. |
thin_content | Very little extractable text: the page is a shell, a redirect or a stub. |
unreachable | DNS, TLS or timeout failure. Retry or drop it. |
No signup, no API key, no invoice: the payment is a per-request signature. Machine-readable entry points are /v1/catalog (price list), /llms.txt (description written for models), /openapi.json (schema with the payment terms embedded), /.well-known/x402 (terms at the conventional location), and the free preview at /v1/page/posture/preview.