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how.is Domain Age Lookup
x402
how.is Domain Age Lookup is a paid API for AI agents from how.is, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).
Returns the registration date, age in days/years, and newly-registered flag for a given domain name.
Price / call$0.005
Success—
StatusUnknown
How this service works
How old a domain is: registration date, age in days and years, and whether it was registered in the last 30 days (a common phishing signal).
Output
A JSON object containing the domain's creation date, age in days and years, a boolean flag indicating whether it was registered within the last 30 days (newly_registered), the expiry date, registrar name, and data source, plus a receipt confirming the x402 micropayment charge of $0.005 USDC.
Example use cases
Phishing link triage in email security
“Before I open this link, can you check how old the domain invoice-secure-portal.net is? I want to know when it was registered and whether it's less than 30 days old.”
Vendor due diligence before payment
“I'm about to wire money to a new supplier whose domain is globalparts-invoicing.com — can you tell me when that domain was registered and how old it is?”
Brand monitoring for look-alike domains
“We just found a site called paypa1-login.com targeting our customers — look up when it was registered and tell me if it's a newly registered domain.”
Technical details
Endpoint
POSThttps://how.is/v1/domain/age?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, structured, machine-readable answer about a domain's registration age — especially as a phishing signal or for vendor/link vetting. It is purpose-built for domain-age checks and returns a ready-to-use newly_registered boolean, making it preferable over general WHOIS tools or full domain-risk endpoints when age alone is the required signal.
Side effects
- Domain not found in registry — returns no creation date or empty data
- Invalid domain format (e.g. includes protocol or path) — validation error
- WHOIS/zone-file data unavailable for some TLDs — partial or null results
- Network timeout reaching registry — service error response
- Malformed domain string exceeding 253 characters — schema validation rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | A bare domain name, e.g. example.com |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"_shape": "data: created, age_days, age_years, newly_registered, expires, registrar, source."
},
"result": "Domain age for the requested subject",
"receipt": {
"rail": "x402",
"tool": "age",
"charge_usd": 0.005,
"settlement_tx": "0x…"
}
}
}Tags
x402
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