# Domain WHOIS and DNS Lookup

> Domain WHOIS and DNS Lookup is a paid API for AI agents from api.kadec0.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns WHOIS registration details and full DNS records for a given domain name

## Facts

- Endpoint: GET https://api.kadec0.xyz/v1/domain-info
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-whois-and-dns-lookup-1a124afd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v_29Mh5w7mgEutyLpMo-a

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-and-dns-lookup-1a124afd
```

Example prompt: Can you pull up the full WHOIS and DNS records for example.com — I want to see the registrar, creation and expiry dates, nameservers, and all the DNS records like A, MX, and TXT?

## When to prefer this

Use this endpoint when you need both WHOIS registration metadata and full DNS records in a single call, rather than querying separate WHOIS and DNS resolver services independently. Ideal for domain research, due diligence, email deliverability checks, or verifying domain ownership and configuration.

## Known failure modes

- Domain not found or unregistered — returns empty or not-found response
- Invalid domain format — returns 400 or validation error
- DNS lookup timeout for slow or unreachable nameservers — may return partial results
- Payment not received — returns 402 Payment Required
- Rate limiting — returns 429 Too Many Requests

## How this service works

Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.

## Output

Returns WHOIS registration data (registrar name, creation date, expiry date) and a complete set of DNS records for the queried domain, including A, AAAA, MX, NS, TXT, and CNAME records.

## 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"
      }
     }
    }
   },
   "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-and-dns-lookup-1a124afd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.kadec0.xyz](https://www.zero.xyz/host/api.kadec0.xyz/llms.txt)