# Domain Intel — WHOIS, DNS, MX, TLS & Subdomains via x402

> Domain Intel — WHOIS, DNS, MX, TLS & Subdomains via x402 is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-12).

Given a domain name, returns WHOIS registration data, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomain enumeration — paid per-call in USDC over x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/mx-hornetsecurity?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intel-whois-dns-mx-tls-subdomains-via-x402-46084a0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XOxkROQvfTzbHBfiKvIvD

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-intel-whois-dns-mx-tls-subdomains-via-x402-46084a0b -d '<json body>'
```

Example prompt: Pull the full domain intelligence report for hornetsecurity.com — I need WHOIS registration info, DNS records, MX and mail policy (SPF/DMARC/DKIM), TLS certificate details, and any subdomains you can find.

## When to prefer this

Choose this endpoint when you need a comprehensive, multi-signal domain intelligence snapshot in a single call — covering WHOIS, DNS, mail policy, TLS, and subdomains — without signing up for an account or managing API keys. Ideal for ad-hoc investigations, security research, or agent workflows that need to pay per-lookup in USDC via x402. Prefer this over dedicated WHOIS-only or DNS-only APIs when breadth of signal matters more than depth on a single record type.

## Known failure modes

- Domain does not exist — empty or error response for unregistered domains
- WHOIS privacy protection — registrant details may be redacted
- Rate limiting or payment failure — x402 payment not accepted
- Invalid domain input — malformed domain string rejected
- TLS certificate absent — domain may not serve HTTPS
- Subdomain enumeration may be incomplete for large or well-protected domains

## How this service works

Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.

## Output

Returns a structured report containing WHOIS registration data (registrar, dates, registrant), full DNS record set, MX records with priorities, mail policy records (SPF, DKIM, DMARC), TLS certificate metadata (issuer, validity, SANs), and a list of discovered subdomains.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "maxLength": 253
  },
  "baseline": {
   "type": "object",
   "required": [
    "domain",
    "observed_at",
    "records"
   ],
   "properties": {
    "domain": {
     "type": "string",
     "maxLength": 253
    },
    "records": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "exchange",
       "priority"
      ],
      "properties": {
       "exchange": {
        "type": "string",
        "maxLength": 254
       },
       "priority": {
        "type": "integer",
        "maximum": 65535,
        "minimum": 0
       }
      },
      "additionalProperties": false
     },
     "maxItems": 50
    },
    "observed_at": {
     "type": "string",
     "maxLength": 40
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intel-whois-dns-mx-tls-subdomains-via-x402-46084a0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.halowerk.com](https://www.zero.xyz/host/dns.halowerk.com/llms.txt)