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VendSDK WHOIS Lite — Domain Registration Lookup via RDAP
x402
VendSDK WHOIS Lite — Domain Registration Lookup via RDAP is a paid API for AI agents from vendsdk.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).
Returns domain registration status, registrar name, registration/expiry dates, and nameservers for a given domain using RDAP (lightweight field set)
Price / call$0.008
Success—
StatusUnknown
How this service works
Domain registration status, registrar, dates, and nameservers via RDAP (lite fields only)
Output
Returns a JSON object with fields including ok (boolean success flag), domain (the queried domain), registrar (registrar name), registration status, registration and expiry dates, nameservers, and the RDAP source used for the lookup.
Example use cases
Brand protection domain monitoring
“Check the registration details for my brand domain acme-corp.com — who's the registrar, what are the nameservers, and when does it expire so I can make sure it doesn't lapse?”
Phishing domain investigation
“I got a suspicious email from support@paypa1.com — can you pull the WHOIS registration info for paypa1.com so I can see when it was registered and who the registrar is?”
Competitor domain due diligence
“We're considering acquiring the domain rivalstartup.io — can you look up its RDAP registration status, registrar, and expiry date before we reach out to the owner?”
Technical details
Endpoint
GEThttps://vendsdk.com/api/v/whois-liteWhen to prefer
Choose this endpoint when you need lightweight, structured domain registration metadata (registrar, dates, nameservers, status) without the full verbosity of a raw WHOIS dump. Ideal for agent workflows that need machine-readable RDAP fields cheaply ($0.008/call) — such as brand monitoring, phishing investigation, domain acquisition due diligence, or security triage pipelines. Prefer this over the combined bundle endpoint (DNS + TLS + RDAP + HTTP HEAD) when you only need WHOIS/RDAP data and want to minimize cost.
Side effects
- Domain not found or unregistered — returns ok: false or empty result
- Invalid domain format — query rejected
- RDAP registry unavailable for TLD — source may be missing or partial
- Rate limiting or payment failure — HTTP 402 or 429 response
- TLD not supported by RDAP — some ccTLDs lack RDAP coverage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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