# x402 Multi-Tool API — Domain WHOIS Lookup

> x402 Multi-Tool API — Domain WHOIS Lookup is a paid API for AI agents from x402deploy.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns WHOIS registration data for a domain, including registrar, expiry, nameservers, and status flags, via a pay-per-request x402 micropayment.

## Facts

- Endpoint: POST https://x402deploy.vercel.app/api/domain
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-multi-tool-api-domain-whois-lookup-fa1108a9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QSALyJ4kvFlG8yhwSYvKA

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 x402-multi-tool-api-domain-whois-lookup-fa1108a9 -d '<json body>'
```

Example prompt: Can you pull the WHOIS record for openai.com — I want to know who the registrar is, when it expires, and what nameservers it's using?

## When to prefer this

Use this endpoint when you need quick, structured WHOIS data for a single domain without setting up API keys or subscriptions. The x402 micropayment model ($0.005 USDC) makes it ideal for occasional lookups in agent workflows. Prefer this over raw WHOIS CLI tools when you need clean, parsed JSON output. Not suited for bulk domain lookups or continuous monitoring at scale.

## Known failure modes

- Domain not found or unregistered — may return empty or error response
- Invalid domain format input — returns validation error
- WHOIS rate limiting by upstream registry — may return incomplete data
- Very new domains may not yet appear in WHOIS databases
- Payment failure via x402 — request not processed if micropayment is rejected

## How this service works

Pay-per-request data toolkit for AI agents — 13 no-auth tools, $0.005 USDC each via x402. Web search, read URL, crypto price/markets/trending, Wikipedia, news headlines, weather, FX rates, IP geolocation, DNS lookup, stock quotes, and domain WHOIS.

## Output

Returns a JSON object with the queried domain name, its WHOIS status flags (e.g. 'client delete prohibited'), expiry date, last updated date, registrar name, original registration date, and a list of authoritative nameservers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "domain": {
   "type": "string",
   "description": "Domain name to look up, e.g. 'example.com'"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "domain": "example.com",
 "status": [
  "client delete prohibited"
 ],
 "expires": "2026-08-13T04:00:00Z",
 "updated": "2025-08-14T07:01:44Z",
 "registrar": "RESERVED-Internet Assigned Numbers Authority",
 "registered": "1995-08-14T04:00:00Z",
 "nameservers": [
  "A.IANA-SERVERS.NET",
  "B.IANA-SERVERS.NET"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-multi-tool-api-domain-whois-lookup-fa1108a9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402deploy.vercel.app](https://www.zero.xyz/host/x402deploy.vercel.app/llms.txt)