# ScriptMasterLabs WHOIS RDAP Lookup

> ScriptMasterLabs WHOIS RDAP Lookup is a paid API for AI agents from acp-x402-discovery.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Performs a pay-per-call WHOIS/RDAP domain registration lookup, returning domain ownership and registration data, settled in USDC via x402.

## Facts

- Endpoint: GET https://acp-x402-discovery.onrender.com/x402/whois-rdap
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-whois-rdap-lookup-57878b8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5hdvRgmj0QSkNlpKjYvQ3

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 scriptmasterlabs-whois-rdap-lookup-57878b8c
```

Example prompt: Can you do a WHOIS RDAP lookup on example.com and tell me who registered it, when it was created, and who the registrar is?

## When to prefer this

Choose this endpoint when you need authoritative WHOIS/RDAP domain registration data and are operating in an x402 micropayment-enabled environment using USDC on Base. Ideal for compliance checks, cybersecurity investigations, or due diligence workflows where per-call billing is acceptable and stablecoin settlement is preferred over subscription-based WHOIS APIs.

## Known failure modes

- Domain not found — returns empty or 404-equivalent RDAP response
- Invalid domain input — malformed query returns an error
- RDAP registry unavailable for the TLD — some TLDs lack RDAP support
- Payment failure — x402 USDC payment not processed, request rejected
- Rate limiting — too many requests in a short period

## How this service works

Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).

## Output

Returns an RDAP/WHOIS record containing domain registration metadata such as registrant name, organization, registrar, creation date, expiration date, nameservers, and domain status flags.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-whois-rdap-lookup-57878b8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from acp-x402-discovery.onrender.com](https://www.zero.xyz/host/acp-x402-discovery.onrender.com/llms.txt)