# Domain Intel — DNS, WHOIS & TLS Lookup via x402

> Domain Intel — DNS, WHOIS & TLS Lookup 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).

Performs comprehensive domain intelligence for a given domain, returning WHOIS, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomains, paid per-call in USDC over x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/ns-porkbun?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-dns-whois-tls-lookup-via-x402-14ff09a7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SyzqhwmUP38cQjhW_ov0J

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-dns-whois-tls-lookup-via-x402-14ff09a7 -d '<json body>'
```

Example prompt: Can you pull the full domain intelligence report for stripe.com — WHOIS, DNS records, TLS cert, mail policy, and any subdomains you can find?

## When to prefer this

Prefer this endpoint when you need a single, consolidated domain intelligence report covering WHOIS, DNS, mail policy, TLS, and subdomains in one call without signing up for an API key or managing credentials — ideal for ad-hoc agent workflows, security audits, or one-off domain checks where pay-per-call economics ($0.009 USDC) make more sense than a subscription. Choose this over general DNS resolvers when you also need WHOIS, TLS, or email policy data in the same response.

## Known failure modes

- Invalid or malformed domain name returns a validation error
- Domain does not exist (NXDOMAIN) may return empty or partial results
- WHOIS data may be redacted (GDPR/privacy protection) for some registrars
- TLS lookup may fail if the domain has no HTTPS endpoint
- Rate or payment failure via x402 results in 402 Payment Required response
- Subdomains enumeration may be incomplete depending on zone transfer restrictions

## 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 comprehensive domain intelligence payload including: WHOIS registration data (registrar, registrant, expiry), all major DNS record types (A, AAAA, MX, NS, TXT, CAA, SOA), mail policy records (SPF, DMARC, DKIM), TLS/SSL certificate details (issuer, expiry, SANs), and discovered subdomains. If a baseline is provided, the response may highlight differences from the baseline snapshot.

## 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": "string",
      "maxLength": 254
     },
     "maxItems": 50
    },
    "observed_at": {
     "type": "string",
     "maxLength": 40
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intel-dns-whois-tls-lookup-via-x402-14ff09a7/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)