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RDAP Domain Registration Lookup
x402
RDAP Domain Registration Lookup is a paid API for AI agents from x402-portfolio.x402iom.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Retrieves modern WHOIS domain registration data via RDAP, including registrar, creation/expiry dates, status flags, nameservers, and DNSSEC info.
Price / call$0.005
Success—
StatusUnknown
How this service works
Domain registration data (modern WHOIS) via RDAP: registrar, created/expiry dates, status, nameservers, DNSSEC.
Output
Returns structured domain registration data including: registrar name, domain creation date, last updated date, expiry/expiration date, domain status flags (e.g. clientTransferProhibited), list of nameservers, and DNSSEC signing status — sourced from the RDAP protocol, the modern successor to WHOIS.
Example use cases
Domain expiry monitoring for asset protection
“Check the RDAP registration details for mybrand.com — specifically when it expires and who the registrar is, so I can make sure it doesn't lapse.”
Cybersecurity investigation of suspicious domain
“I need the full domain registration info for phishy-login-page.net — registrar, creation date, status flags, and nameservers — to help assess whether it's a newly registered phishing domain.”
Pre-acquisition domain due diligence
“Before we proceed with buying startup.io, can you pull the RDAP data so I know who currently owns it, how old the registration is, and whether DNSSEC is configured?”
Technical details
Endpoint
GEThttps://x402-portfolio.x402iom.workers.dev/rdap/:var1When to prefer
Choose this endpoint when you need structured, machine-readable domain registration metadata (registrar, dates, status, nameservers, DNSSEC) — especially when you want a modern RDAP response rather than raw legacy WHOIS text. Ideal for domain monitoring workflows, cybersecurity investigations, pre-acquisition due diligence, or any automation that needs to parse domain lifecycle data reliably.
Side effects
- Domain not found: returns error if the domain does not exist or has no RDAP record
- Invalid domain format: malformed domain strings may return a validation error
- Registry unavailability: some TLDs may not support RDAP, resulting in no data returned
- Rate limiting: excessive calls may be throttled
- Redacted data: registrant contact info is often redacted for privacy (GDPR); only technical/registrar data is returned
Tags
x402
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