# Domain Intel — Pay-per-call Domain Intelligence

> Domain Intel — Pay-per-call Domain Intelligence 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 WHOIS, DNS records, mail policy, TLS certificate, and subdomain data for a given domain, billed per call in USDC via x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/registry-renewal-window?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-aa47ec5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jShisHjU59uCfTPox_mkD

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-aa47ec5d -d '<json body>'
```

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

## When to prefer this

Choose this endpoint when you need a comprehensive, single-call domain intelligence bundle — WHOIS, DNS, mail policy, TLS, and subdomains — without signing up for an account or managing API keys. It is ideal for ad-hoc, pay-as-you-go domain investigations, security research, or enrichment pipelines where you want to avoid subscription commitments. Prefer alternatives if you need real-time continuous monitoring or bulk batch lookups at high volume.

## Known failure modes

- Invalid domain format returns a validation error
- Domain not found in WHOIS returns empty or partial data
- Payment failure via x402 returns 402 Payment Required
- Rate limiting or upstream DNS/WHOIS timeouts may return 503 or partial results
- Newly registered or private domains may return redacted WHOIS data

## 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 response containing WHOIS registration data (registrar, registrant, expiry), DNS records (A, MX, NS, TXT, etc.), mail policy records (SPF, DKIM, DMARC), TLS certificate details (issuer, validity, SANs), and a list of discovered subdomains for the queried domain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "pattern": "^(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\\.)+[a-zA-Z]{2,63}$",
   "maxLength": 253
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intel-pay-per-call-domain-intelligence-aa47ec5d/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)