# CRA AGENT Domain WHOIS / RDAP Lookup

> CRA AGENT Domain WHOIS / RDAP Lookup is a paid API for AI agents from api.cra-agent.tech, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Returns registrar, creation/expiry dates, status codes, name servers, and availability signal for a domain via its RDAP registry record.

## Facts

- Endpoint: GET https://api.cra-agent.tech/v1/paid/domains/whois?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cra-agent-domain-whois-rdap-lookup-e3cf18c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DxKkuE35WIFuGz5N3p0wI

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 cra-agent-domain-whois-rdap-lookup-e3cf18c6
```

Example prompt: Can you check the WHOIS record for openai.com — I want to know the registrar, when it was created and expires, its name servers, and whether it looks available?

## When to prefer this

Use this endpoint when you need structured, machine-readable RDAP data about a domain — including registrar, dates, status codes, name servers, and availability — rather than raw WHOIS text parsing. Prefer it over manual WHOIS tools when building agents that need to programmatically check domain registration status or perform domain due diligence at scale.

## Known failure modes

- Domain not found in RDAP (unregistered or TLD not supported) — may return empty or availability=true
- Invalid domain format supplied — 400 Bad Request
- TLD not covered by RDAP protocol — partial or no data returned
- RDAP upstream registry timeout — 502 or 504 error
- Rate limit exceeded — 429 Too Many Requests

## How this service works

Registrar, creation and expiry dates, status codes and name servers of a domain from the registry's RDAP record, and whether the name looks available.

## Output

Returns the domain's RDAP record including: registrar name, creation date, expiry/expiration date, last updated date, ICANN status codes (e.g. clientTransferProhibited), name servers, and a boolean or signal indicating whether the domain appears to be available for registration.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cra-agent-domain-whois-rdap-lookup-e3cf18c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.cra-agent.tech](https://www.zero.xyz/host/api.cra-agent.tech/llms.txt)