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Domain Check via RDAP
x402
Domain Check via RDAP is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Returns registration age, expiry, registrar, EPP status codes, nameservers, and DNSSEC status for any domain, with a GO/HOLD/STOP fraud-risk verdict based on RDAP data.
Price / call$0.02
Success—
StatusUnknown
How this service works
Registration age, expiry and registry status for any domain, from RDAP — the registries' own protocol. Returns days since registration, days to expiry, registrar, EPP status codes, nameservers and DNSSEC as one GO / HOLD / STOP verdict. Domain age is the strongest cheap signal in invoice and vendor-impersonation fraud: the payment details that change always arrive from a domain registered weeks ago. Refuses rather than guessing when a registry publishes no RDAP.
Output
Returns a structured response including days since registration, days until expiry, registrar name, EPP status codes, nameservers, DNSSEC flag, and a single GO/HOLD/STOP verdict summarizing fraud risk. Refuses to guess if the registry publishes no RDAP data.
Example use cases
Invoice fraud pre-payment check
“I just received an invoice from vendor-billing-corp.net asking me to pay a new bank account. Can you check that domain's registration age, registry status, and give me a GO or STOP on whether it looks legit?”
Supplier onboarding domain vetting
“We're onboarding a new supplier who uses the domain globaltradeparts-invoices.com — can you look up when it was registered, who the registrar is, and whether it's a fraud risk before we add them to our payment system?”
Phishing email domain triage
“I got an email from finance@secure-payments-update.com asking me to confirm wire details. Check that domain's RDAP data — how old is it, what are the EPP status codes, and should I treat this as a phishing attempt?”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/domain-checkWhen to prefer
Choose this endpoint when you need a cheap, fast, authoritative fraud signal based on domain age and registry status — especially for invoice fraud, vendor impersonation, or phishing triage. It uses RDAP (the registries' own protocol) rather than third-party WHOIS scrapers, making it more accurate and reliable. Prefer it over general WHOIS tools when you need a structured verdict (GO/HOLD/STOP) rather than raw text output.
Side effects
- Registry does not publish RDAP — endpoint refuses rather than returning incomplete data
- Domain does not exist or is unregistered — returns appropriate not-found response
- Invalid domain format in query parameter — returns validation error
- Network or upstream registry timeout — may return an error instead of data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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