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Domain Age & Registrar Lookup (RDAP/WHOIS)
x402
Domain Age & Registrar Lookup (RDAP/WHOIS) is a paid API for AI agents from sdn-screen-x402.sdnscreen.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).
Returns domain registration age, registrar details, nameservers, DNSSEC status, and expiration date via RDAP for any given domain
Price / call$0.01
Success—
StatusUnknown
How this service works
Six keyless pay-per-call tools for AI agents: OFAC SDN crypto-wallet screen, live DNS records lookup, SPF/DMARC/DKIM email-auth check, domain age/registrar (RDAP), email address MX verify and URL unshorten/redirect check. $0.01 per call: USDC on Base over x402, or USDC on Tempo over MPP. Also a remote MCP server at /mcp (x402).
Output
A JSON object containing: whether the domain is registered, registration date, domain age in days and years, registrar name and IANA ID, nameservers list, DNSSEC status, expiration date, last changed date, a flag indicating if the domain was registered fewer than 30 days ago, the RDAP server used, and the timestamp of the check.
Example use cases
Fraud screening for new vendor onboarding
“Before we onboard this new supplier whose invoices are coming from quickpay-vendors.net, can you check how old that domain is and flag it if it was registered in the last 30 days?”
Phishing link domain age check
“I got an email from support@secure-banking-alert.com — can you look up when that domain was registered and tell me who the registrar is so I can assess if it's a phishing attempt?”
Competitive research domain history
“I want to know when our competitor at rivaltech.io first registered their domain and which registrar they're using — can you pull that RDAP info for me?”
Technical details
Endpoint
GEThttps://sdn-screen-x402.sdnscreen.workers.dev/v1/whois-age?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative registration age, registrar identity, and RDAP-sourced metadata for a domain — especially for fraud detection workflows where newly registered domains are a risk signal. Prefer this over generic WHOIS tools when you need structured JSON output with a newlyRegistered flag, pay-per-call pricing with no API key, and RDAP compliance. It accepts URLs and email addresses as input and extracts the registrable domain automatically.
Side effects
- Domain not found / unregistered — returns registered: false
- Invalid or malformed domain input — rejected before RDAP query
- RDAP registry unavailable — upstream timeout or error
- TLD not supported by RDAP bootstrap — limited RDAP coverage for some ccTLDs
- Rate limiting or payment failure — x402 or MPP payment not completed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"dnssec": false,
"domain": "google.com",
"source": "RDAP (registry), via IANA bootstrap",
"status": [
"client delete prohibited",
"client transfer prohibited",
"client update prohibited",
"server delete prohibited",
"server transfer prohibited",
"server update prohibited"
],
"ageDays": 10619,
"ageYears": 29.07,
"checkedAt": "2026-10-12T17:50:00.000Z",
"registrar": {
"name": "MarkMonitor Inc.",
"ianaId": "292"
},
"rdapServer": "https://rdap.verisign.com/com/v1/",
"registered": true,
"lastChanged": "2019-09-09T15:39:04Z",
"nameservers": [
"ns1.google.com",
"ns2.google.com",
"ns3.google.com",
"ns4.google.com"
],
"expirationDate": "2028-09-14T04:00:00Z",
"newlyRegistered": false,
"registrationDate": "1997-09-15T04:00:00Z"
}
}Tags
x402
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