# DNS Intelligence API – WHOIS Lookup

> DNS Intelligence API – WHOIS Lookup is a paid API for AI agents from dns.payapi.market, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).

Returns WHOIS registration data for a given domain, including registrar, creation/expiration dates, name servers, DNSSEC status, and registrant details.

## Facts

- Endpoint: POST https://dns.payapi.market/dns/whois?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-intelligence-api-whois-lookup-f59ad967
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DMqecl9gJwpZNalgOD3xQ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-intelligence-api-whois-lookup-f59ad967 -d '<json body>'
```

Example prompt: Can you pull the WHOIS registration info for stripe.com — I want to know who registered it, when it expires, and what name servers it's using?

## When to prefer this

Use this endpoint when you need structured domain registration metadata (registrar, dates, name servers, DNSSEC) for a specific domain. Prefer it over generic DNS record lookups when the goal is ownership, registration history, or expiry information rather than DNS resolution. It is ideal for security investigations, compliance checks, competitive research, and domain portfolio management.

## Known failure modes

- Domain not found or not registered — may return empty/null fields
- TLD not supported by WHOIS parser — limited field availability
- Registrar data redacted under GDPR or privacy proxy — emails/org/country may be null
- Malformed domain input — lookup fails
- Rate limiting or payment failure — request rejected

## How this service works

DNS records, WHOIS, SSL certificate, subdomain discovery, and reverse-IP lookup with x402 payments.

## Output

Returns a JSON object with parsed WHOIS fields including domain name, registrar name and URL, creation date, expiration date, last updated date, name servers array, DNSSEC status, domain status flags, registrant org, country, and emails. Note that field availability varies by TLD and some registrars redact personal data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "description": "Domain name to look up WHOIS registration data for, e.g. 'example.com'."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "org": null,
  "note": "WHOIS parsing is best-effort. Field availability varies by TLD; some registrars redact data.",
  "dnssec": "signedDelegation",
  "domain": "example.com",
  "emails": [],
  "status": [
   "clientDeleteProhibited",
   "clientTransferProhibited"
  ],
  "country": null,
  "registrar": "RESERVED-Internet Assigned Numbers Authority",
  "name_servers": [
   "a.iana-servers.net",
   "b.iana-servers.net"
  ],
  "updated_date": "2024-08-14T07:01:34",
  "creation_date": "1995-08-14T04:00:00",
  "registrar_url": "http://res-dom.iana.org",
  "expiration_date": "2025-08-13T04:00:00"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-intelligence-api-whois-lookup-f59ad967/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.payapi.market](https://www.zero.xyz/host/dns.payapi.market/llms.txt)