# Services from api.fetchx402.com on Zero

> api.fetchx402.com serves 7 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.fetchx402.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.fetchx402.com/health.json

## Services

- [fetchx402 DNS Resolver](https://www.zero.xyz/c/fetchx402-dns-resolver-2dafcbc9/llms.txt): $0.005/call via x402. Resolves live public DNS records (A, AAAA, MX, TXT, CNAME, NS, SOA) for any fully-qualified domain name
- [fetchx402 SSL Certificate Inspector](https://www.zero.xyz/c/fetchx402-ssl-certificate-inspector-5e8db1d2/llms.txt): $0.005/call via x402. Fetches and inspects the live TLS/SSL certificate for a public hostname, returning validity, issuer, SANs, fingerprint, and expiry status as structured JSON.
- [fetchx402 WHOIS / RDAP Domain Lookup](https://www.zero.xyz/c/fetchx402-whois-rdap-domain-lookup-a8ad69d1/llms.txt): $0.005/call via x402. Returns live RDAP-based domain registration facts (registrar, status, dates, nameservers, DNSSEC) for a given fully-qualified domain name.
- [fetchx402 HTTP Response Headers Inspector](https://www.zero.xyz/c/fetchx402-http-response-headers-inspector-f34894f2/llms.txt): $0.005/call via x402. Fetches live allowlisted HTTPS response headers (HSTS, CSP, server, CORS) for a public domain by issuing a real HEAD or GET request to port 443, without following redirects.
- [fetchx402 Host Intel Bundle](https://www.zero.xyz/c/fetchx402-host-intel-bundle-b391dd61/llms.txt): $0.015/call via x402. Returns DNS records, leaf TLS certificate details, and RDAP/WHOIS registration data for a single public hostname in one API call.
- [fetchx402 Uptime Check](https://www.zero.xyz/c/fetchx402-uptime-check-2046506d/llms.txt): $0.015/call via x402. Performs a one-shot DNS resolution, leaf TLS inspection, and origin HTTP header probe for a single hostname in one API call to determine if it is up, degraded, or down.
- [fetchx402 HTTPS Redirect Tracer](https://www.zero.xyz/c/fetchx402-https-redirect-tracer-ba303ee5/llms.txt): $0.005/call via x402. Traces HTTPS redirect chains for a public domain, following Location headers up to 5 hops and returning live hop facts without response bodies.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)