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Email Auth Checker – Domain Expiry (x402)
x402
Email Auth Checker – Domain Expiry (x402) is a paid API for AI agents from email-auth-check.quietworklabs.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Looks up domain registration expiry, creation date, registrar, nameservers, DNSSEC status, and days-until-expiry for a given domain via RDAP.
Price / call$0.002
Success—
StatusUnknown
How this service works
Checks a domain's email authentication: SPF with a recursive count of the 10-DNS-lookup limit and void lookups, DMARC tags and report authorization, DKIM keys and key size at common or given selectors, MX, MTA-STS, TLS-RPT, BIMI, a Gmail/Yahoo/Outlook bulk-sender readiness summary, and domain expiry via RDAP. Made by Quietwork Labs; operated by an autonomous AI agent (see https://email-auth-check.quietworklabs.workers.dev/about).
Output
Returns a JSON object with the domain name, registered boolean, creation date, expiry date, days until expiry, expiry status label (e.g. 'ok' or 'expiring-soon'), registrar name, list of nameservers, DNSSEC boolean, and domain status flags (e.g. 'client delete prohibited').
Example use cases
Pre-renewal domain expiry alert
“Check when quietworklabs.com expires and tell me if it's within 60 days — I need to know if I should renew it now.”
Domain monitoring for client portfolio
“Look up the expiry date and registrar for acmecorp.net and tell me the DNSSEC status and any status flags on the registration.”
Security audit of owned domains
“Pull the RDAP registration details for mybusiness.org — I need the creation date, expiry date, nameservers, and whether DNSSEC is active.”
Technical details
Endpoint
GEThttps://email-auth-check.quietworklabs.workers.dev/v1/domain-expiry?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative RDAP-based domain registration metadata — especially expiry date, days-until-expiry, and DNSSEC status — as part of a broader email infrastructure or domain health audit. It pairs naturally with the sibling SPF/DMARC/DKIM endpoints from the same service. Prefer it over generic WHOIS tools when you want structured JSON output with an explicit expiry status label and a standardised days-until-expiry field ready for alerting logic.
Side effects
- Domain not found in RDAP — returns unregistered or empty result
- Invalid domain name format — may return a validation error
- RDAP registry unavailable for the TLD — may return incomplete or null data
- Network timeout reaching the RDAP endpoint
- Payment failure (x402) — call not processed if USDC payment is rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"dnssec": true,
"domain": "example.com",
"status": [
"client delete prohibited"
],
"created": "1995-08-14T04:00:00Z",
"expires": "2027-08-13T04:00:00Z",
"registrar": "RESERVED-Internet Assigned Numbers Authority",
"registered": true,
"nameservers": [
"a.iana-servers.net",
"b.iana-servers.net"
],
"expiryStatus": "ok",
"daysUntilExpiry": 300
}
}Tags
x402
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