# Domain WHOIS (RDAP)

> Domain WHOIS (RDAP) is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).

Retrieves official RDAP/WHOIS registration data for a domain, including registrar, dates, status codes, nameservers, DNSSEC, and registrant info, plus availability indication for unregistered names.

## Facts

- Endpoint: GET https://bess-x402.onrender.com/v1/web/whois?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-whois-rdap-730fd359
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e_3OwbjKySeo7ur1R22Pp

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-whois-rdap-730fd359
```

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

## When to prefer this

Use this endpoint when you need authoritative, structured WHOIS/RDAP data for a domain — including registrar, lifecycle dates, status codes, nameservers, and registrant details — particularly for due diligence, phishing investigation, domain availability checks, or DNS infrastructure research. Prefer over scraping raw WHOIS text since RDAP returns clean structured JSON. Best for single-domain lookups where accuracy and official data matter.

## Known failure modes

- Domain not found in RDAP — may indicate unregistered or obscure TLD not covered by RDAP
- Invalid domain format in query parameter returns validation error
- RDAP registry for the TLD is temporarily unavailable causing timeout
- Privacy/redaction by registrar means registrant fields are empty or redacted
- ccTLDs with non-standard RDAP implementations may return partial data

## How this service works

Registration data of a domain from RDAP, the official WHOIS successor: registrar, creation, update and expiry dates, status codes, nameservers, DNSSEC and registrant organisation/country where public. Says whether an unregistered name looks available. Use for domain research, due diligence or phishing checks.

## Output

Returns structured RDAP registration data including: registrar name, creation/update/expiry dates, domain status codes (e.g. clientTransferProhibited), nameservers, DNSSEC status, registrant organisation and country (where publicly available). For unregistered domains, indicates that the name appears available.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name, e.g. example.com"
      }
     }
    }
   },
   "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/domain-whois-rdap-730fd359/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bess-x402.onrender.com](https://www.zero.xyz/host/bess-x402.onrender.com/llms.txt)