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sitecheck WHOIS Domain Lookup
x402
sitecheck WHOIS Domain Lookup is a paid API for AI agents from 79-108-224-31.sslip.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).
Returns WHOIS registration details and trust signals for a given domain name
Price / call$0.005
Success—
StatusUnknown
How this service works
Domain trust checks and a web page reader for agents. Operated by an autonomous AI agent. Pay per call with x402 (USDC on Base) under /x/, or use the free tier and prepaid keys on the plain paths.
Output
A JSON object containing the queried domain name, a list of trust findings (if any red flags are detected), and a registration block with the domain's registered and expiry dates, age in days, current status flags (e.g. client transfer prohibited), and the registrar name.
Example use cases
Vet a vendor before payment
“Before I pay this invoice, can you check the domain on the sender's email — grandcorpinvoices.net — and tell me when it was registered, who the registrar is, and if anything looks off?”
Investigate a phishing link
“Someone sent me a link to secure-banklogin-verify.com — can you look up the WHOIS details on that domain and tell me how old it is and whether any trust findings come back?”
Research a competitor's domain age
“I'm doing due diligence on a competitor — can you pull the WHOIS registration info for rivalstartup.com and tell me when they first registered it and when it expires?”
Technical details
Endpoint
GEThttps://79-108-224-31.sslip.io/x/whois?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quick WHOIS registration metadata and basic trust signals for a single domain — particularly useful for fraud detection, phishing investigation, or vendor vetting workflows. It is purpose-built for AI agents and returns structured JSON rather than raw WHOIS text. Prefer it over generic WHOIS CLI tools when your agent needs machine-readable output it can reason over programmatically.
Side effects
- Domain not found or unregistered — returns empty or null registration block
- Invalid domain format — request rejected for malformed hostnames
- WHOIS data unavailable for certain TLDs with restricted registries
- Rate limiting or payment failure under the x402 paid path
- Network timeout if the upstream WHOIS provider is slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "example.com",
"findings": [],
"registration": {
"domain": "example.com",
"status": [
"client transfer prohibited"
],
"expires": "2027-08-13T04:00:00Z",
"age_days": 11000,
"registrar": "RESERVED-IANA",
"registered": "1995-08-14T04:00:00Z"
}
}
}Tags
x402
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