# RDAP Whois Lookup

> RDAP Whois Lookup is a paid API for AI agents from 164.160.90.241.sslip.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Returns RDAP registration data for a domain including registrar, creation/expiry dates, status codes, and nameservers.

## Facts

- Endpoint: GET https://164.160.90.241.sslip.io/api/sec-whois-privacy-history?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rdap-whois-lookup-01e1ff54
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__jFUlJnStuUgSE9YLG_G9

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 rdap-whois-lookup-01e1ff54
```

Example prompt: Can you pull up the RDAP registration details for stripe.com — I want to see who the registrar is, when it was created and when it expires, and what nameservers it's using?

## When to prefer this

Use this endpoint when you need structured, machine-readable domain registration metadata (registrar, dates, nameservers, status codes) via the modern RDAP protocol rather than legacy WHOIS text parsing. Prefer this over raw WHOIS scraping when you need reliably parsed fields. Best suited for single domain lookups rather than bulk queries.

## Known failure modes

- Domain not found or unregistered — returns empty or error response
- TLD not supported by RDAP protocol — some ccTLDs may lack RDAP support
- Rate limiting from upstream RDAP servers causing timeouts
- Malformed or missing domain parameter returns validation error
- Private/redacted registrant data may return minimal fields for GDPR-protected registrations

## How this service works

Registration data for a domain via RDAP: registrar, creation/expiry dates, status codes and nameservers.

## Output

Returns structured registration data for the queried domain including: registrar name, domain creation date, last updated date, expiry/deletion date, domain status codes (e.g. clientTransferProhibited), and list of nameservers. Data is sourced from the domain's authoritative RDAP endpoint.

## 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",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name"
      }
     }
    }
   },
   "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/rdap-whois-lookup-01e1ff54/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 164.160.90.241.sslip.io](https://www.zero.xyz/host/164.160.90.241.sslip.io/llms.txt)