# WHOIS/RDAP Domain Registration Lookup

> WHOIS/RDAP Domain Registration Lookup is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns clean JSON with domain registration details—registrar, creation date, expiry date, last updated, EPP status codes, and nameservers—sourced from authoritative RDAP.

## Facts

- Endpoint: GET https://intel.rallylive.ca/whois
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whois-rdap-domain-registration-lookup-c0a926d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NGjztIApF4Vpt8wt3v14G

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 whois-rdap-domain-registration-lookup-c0a926d0
```

Example prompt: Can you look up the WHOIS registration details for openai.com — I want to know the registrar, when it was created, when it expires, its nameservers, and the EPP status codes?

## When to prefer this

Use this endpoint when you need structured, authoritative domain registration metadata (registrar, dates, EPP codes, nameservers) for a single domain — especially for due diligence, expiry monitoring, or ownership investigation. Prefer this over DNS lookup tools when you need registration history and registrar details rather than just DNS records, and over raw WHOIS parsers when you want clean JSON output from RDAP rather than free-text WHOIS.

## Known failure modes

- Domain not found or unregistered — returns empty or error response
- Invalid domain name format — likely returns a 400 or validation error
- RDAP registry unavailable for certain TLDs — may return partial or no data
- Rate limiting or payment failure — returns 402 or 429
- Very new TLDs with no RDAP support may not return data

## How this service works

WHOIS / RDAP domain registration lookup: registrar, creation (registration) date, expiry date, last updated, EPP status codes and nameservers, returned as clean JSON from the authoritative RDAP source. Domain age and ownership research, expiry monitoring, due diligence. $0.01 per domain.

## Output

A clean JSON object containing the domain's registrar name, creation/registration date, expiry date, last-updated date, EPP status codes (e.g. clientTransferProhibited), and nameserver hostnames — all sourced from the authoritative RDAP registry.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whois-rdap-domain-registration-lookup-c0a926d0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)