https://staging.402utils.com/v1/link-check
Verify a link before you cite or use it: HTTP status, the full redirect chain, the final URL, latency, and the final Content-Type/Content-Length. Redirects are followed manually (max 10) with SSRF validation on every hop; probes with HEAD by default and falls back to GET automatically when a server rejects HEAD. A dead or broken target (404, 410, 500…) is a valid result, not an error. Response bodies are never downloaded.
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://staging.402utils.com/v1/link-check", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://staging.402utils.com/ returned 200.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
EVIDENCE
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call.