Documentation
fetchx402: pay-per-request network utilities for agents
fetchx402 is pay-per-request network utilities for agents. USDC on Base. No API keys.
Distinct from npm @x402/fetch
(a client that pays x402 APIs). This product is the API those clients call.
Same source of truth as /v1/catalog, /openapi.json, /.well-known/x402, and /llms.txt.
Live tools
DNS Explorer
Resolve public DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA) for a domain. Use when you need live DNS data and must not guess from memory or training data.
SSL Inspector
SSL check (pay per request): inspect the leaf TLS certificate for a public hostname (validity, issuer, SANs, fingerprint, expiry). Use when you need live cert facts and must not guess. Expired or hostname-mismatched certs still return JSON flags.
WHOIS Intelligence
WHOIS lookup via RDAP (registrar, status, dates, nameservers, DNSSEC). Use when you need live registry data and must not guess. Unregistered names return not_found.
HTTP Headers
Read allowlisted HTTPS response headers for a hostname (HSTS, CSP, server, CORS). Use when you need live origin headers and must not guess. HEAD of https://{domain}/ on :443; GET if HEAD is 405/501. Redirects are not followed.
Redirect Tracer
Trace HTTPS redirects for a hostname. Use when you need live hop facts and must not guess. HEAD of https://{domain}/ on :443 (GET if 405/501); follow Location up to 5 hops. HTTPS :443 only after ConnectGuard. Bodies are omitted.
Bundles
One settle, children run internally. Prefer a bundle when you need several facts together. Call the individual tools when you only need one fact. The same sequences are in
/v1/catalog playbooks
and /llms.txt.
Host intelligence
host intel: DNS, leaf TLS, and WHOIS/RDAP for one hostname in a single settle. Use when you need live host facts together and must not guess. Child errors stay in-field; we do not invent data.
Uptime check
One-shot reachability: DNS, leaf TLS, and origin headers for one hostname in a single settle. Use when you need live up/degraded/down and must not guess. Child errors stay in-field; we do not invent data.
Payment smoke
Payment smoke
Confirms the x402 gate and PAYMENT-RESPONSE. Not a product tool. Do not call for production work. Not listed on Bazaar.