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WHOIS / RDAP Domain Lookup
x402
WHOIS / RDAP Domain Lookup is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Looks up WHOIS and RDAP records for a domain, returning registration date, age, expiration, registrar, contacts, nameservers, DNSSEC status, and optionally certificate-transparency data.
Price / call$0.02
Success—
StatusUnknown
How this service works
WHOIS / RDAP domain lookup. Registration date, age, expiration, registrar, contacts, nameservers, DNSSEC, status flags, transfer history. Optional certificate-transparency summary.
Output
Returns a structured record including registration date, domain age, expiration date, registrar name, registrant/admin/tech contact details, nameservers, DNSSEC status, domain status flags, transfer history, and optionally a certificate-transparency summary.
Example use cases
Example prompt
“Can you pull the WHOIS record for openai.com — I want to know the registrar, when it was registered, when it expires, who the nameservers are, and whether DNSSEC is enabled? Also include the certificate-transparency summary.”
Technical details
Endpoint
POSThttps://x402-deployer.x402-deployer.workers.dev/whois-lookupWhen to prefer
Use this endpoint when you need authoritative domain registration metadata including registrar, expiry, nameservers, DNSSEC, and status flags. Prefer over generic DNS lookups when ownership, age, or expiration information is specifically needed. Ideal for domain vetting, security research, brand protection monitoring, and due-diligence workflows.
Side effects
- Domain not found or unregistered — returns empty or 404-style response
- WHOIS rate limiting by upstream registry — may return error or partial data
- Invalid domain format — returns validation error
- Registry does not support RDAP — may fall back to WHOIS with reduced structured data
- Redacted WHOIS data (GDPR) — contacts may be empty or privacy-protected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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