# Domain Intel — Pay-Per-Call Domain Intelligence (x402)

> Domain Intel — Pay-Per-Call Domain Intelligence (x402) is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-13).

Returns comprehensive domain intelligence including WHOIS, DNS records, mail policy, TLS certificate, and subdomains for a given domain, paid per-call in USDC via x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/ns-vercel?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intel-pay-per-call-domain-intelligence-x402-49d2cf2d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__k2FzMs4mH-1vPFEyhWwY

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-pay-per-call-domain-intelligence-x402-49d2cf2d -d '<json body>'
```

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

## When to prefer this

Choose this endpoint when you need a comprehensive, all-in-one domain intelligence snapshot — WHOIS, DNS, mail policy, TLS, and subdomains — in a single call without signing up for an API key or managing credentials. It is ideal for ad-hoc investigations, security audits, or agent workflows that need to pay programmatically per lookup using USDC via x402. Prefer alternatives if you need continuous real-time monitoring, bulk domain scanning at scale, or deeper threat intelligence beyond infrastructure-level data.

## Known failure modes

- Invalid or malformed domain name returns a validation error
- Domain does not exist or is not resolvable returns empty or error response
- Payment failure via x402 prevents the call from completing
- Rate limiting or network timeouts on upstream DNS/WHOIS lookups may delay or fail the response
- Baseline object with missing required fields (domain, observed_at, records) returns a schema validation error

## 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

A structured report containing WHOIS registration data, DNS records (A, MX, NS, TXT, etc.), mail authentication policy (SPF, DKIM, DMARC), TLS/SSL certificate details, and enumerated subdomains for the queried domain. When a baseline is provided, the response can highlight changes since the last observation.

## 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-pay-per-call-domain-intelligence-x402-49d2cf2d/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)