# Domain RDAP Lookup

> Domain RDAP Lookup is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status down (last checked 2026-08-24).

Returns authoritative RDAP registration records for a domain, including creation/expiry dates, registrar, status, nameservers, and DNSSEC info.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/domain-rdap?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-08-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-rdap-lookup-2d046bfb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PlTOeuHVPtujQ5B74S5HR

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 domain-rdap-lookup-2d046bfb -d '<json body>'
```

Example prompt: Can you pull up the RDAP registration record for openai.com — I want to see when it was registered, when it expires, who the registrar is, and whether DNSSEC is enabled?

## When to prefer this

Use this endpoint when you need authoritative, structured domain registration metadata (RDAP protocol) rather than raw WHOIS text, especially when you need machine-readable expiry dates, registrar info, nameservers, or DNSSEC status for a specific domain. Prefer over WHOIS scraping tools when structured JSON output is required.

## Known failure modes

- Domain not found or not yet registered — returns an error or empty record
- Invalid domain format supplied — returns a validation error
- RDAP registry unavailable for the TLD — returns a lookup failure
- Rate limiting or payment failure at $0.02 USDC — returns 402 or 429 error

## How this service works

Authoritative domain registration record via RDAP (?domain=example.com): creation/expiry dates, registrar, status, nameservers, DNSSEC. Returns JSON.

## Output

A JSON object containing the domain's authoritative RDAP record with fields for creation date, expiration date, registrar name, domain status flags (e.g. clientTransferProhibited), nameserver hostnames, and DNSSEC status.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-rdap-lookup-2d046bfb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)