# Halowerk Domain Intel — MX/TransIP Article Endpoint

> Halowerk Domain Intel — MX/TransIP Article Endpoint 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 MX record intelligence and mail policy data for a given domain, with optional baseline comparison, paid per-call in USDC via x402

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/mx-transip?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/halowerk-domain-intel-mx-transip-article-endpoint-d00aeb53
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nwauBdRnG0eVaNCquBUr6

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 halowerk-domain-intel-mx-transip-article-endpoint-d00aeb53 -d '<json body>'
```

Example prompt: Pull the current MX records and mail policy for example.com and compare them against these baseline records I saw last week: exchange mail.example.com priority 10, observed on 2024-06-01.

## When to prefer this

Choose this endpoint when you need MX record and mail policy data for a domain without any signup or API key, and especially when you want to compare current MX records against a known historical baseline to detect changes. It is well-suited for automated security monitoring, domain auditing pipelines, and one-off investigations where pay-per-call via x402 USDC micropayments is preferred over subscription APIs. Prefer alternatives if you need bulk batch lookups at lower per-query cost, or if you need real-time streaming DNS monitoring rather than point-in-time lookups.

## Known failure modes

- Invalid or malformed domain name returns a validation error
- Domain does not exist in DNS — returns empty or NXDOMAIN result
- Baseline schema mismatch (missing required fields like observed_at or records) causes a 422 or schema validation error
- Payment not settled via x402 protocol returns a 402 Payment Required response
- Rate limiting or upstream DNS resolution failure may return a 503 or timeout
- Overly long domain name (>253 characters) rejected by input validation

## 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 current MX records (exchange hostnames and priorities) along with associated mail policy data, WHOIS registration details, DNS records, TLS certificate information, and subdomains for the queried domain. When a baseline is provided, the response enables comparison of current vs. historical MX configuration to detect drift or unauthorized changes.

## 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/halowerk-domain-intel-mx-transip-article-endpoint-d00aeb53/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)