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x402whois.com WHOIS Lookup
x402
x402whois.com WHOIS Lookup is a paid API for AI agents from x402whois.com, paid per call via x402, $0.1/call, status down (last checked 2026-10-27).
Performs a WHOIS lookup for a given domain name, returning registration and ownership information
Price / call$0.1
Success—
StatusDown
How this service works
Basic whois lookup
Output
Returns WHOIS record data for the queried domain, typically including registrant contact details, registration and expiration dates, registrar name, nameservers, and domain status flags.
Example use cases
Verify domain ownership for partnerships
“I'm considering partnering with someone who claims to own techstartup.io. Can you look up the WHOIS information and tell me who actually registered it and when?”
Monitor competitor domain expiration dates
“Keep track of our main competitors' domains. Check the WHOIS records for competitor.com and competitor.net, and let me know when those registrations are set to expire.”
Investigate suspicious email sender domains
“I received a suspicious email from someone claiming to be from mybank.com, but something feels off. Can you pull the WHOIS data and check who really owns that domain and what registrar it's using?”
Technical details
Endpoint
POSThttps://x402whois.com/api/v1/whois?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need quick, on-demand WHOIS lookups for individual domains and are comfortable with micro-payment billing via x402 (0.1 USDC per query). Suitable for agents that need to verify domain ownership, check registration status, or gather registrar details as part of a broader workflow without needing a bulk or subscription-based WHOIS service.
Side effects
- Domain not found or unregistered — returns empty or not-found response
- Invalid domain format — returns error for malformed domain input
- WHOIS rate limiting by upstream registry — may return throttled or incomplete data
- TLD not supported — some newer or uncommon TLDs may lack WHOIS data
- Payment failure — x402 payment of 0.1 USDC not completed, request rejected
Tags
x402
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