# Domain Intelligence - DNS/RDAP/TLS Lookup

> Domain Intelligence - DNS/RDAP/TLS Lookup is a paid API for AI agents from domain-intelligence.nordman-tehau.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Returns deterministic DNS records, RDAP registrar data, and TLS certificate info for any domain name in a single call.

## Facts

- Endpoint: GET https://domain-intelligence.nordman-tehau.workers.dev/intelligence?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intelligence-dns-rdap-tls-lookup-8ad9cccd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wyAqvoZsVOjGWWR1Jn5i6

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-intelligence-dns-rdap-tls-lookup-8ad9cccd
```

Example prompt: Can you pull up all the DNS records, TLS certificate details, and registrar info for stripe.com in one shot?

## When to prefer this

Choose this endpoint when you need a single-call aggregation of DNS, RDAP, and TLS data for a domain without managing multiple separate lookups. It is ideal for agents doing domain verification, security audits, or infrastructure checks where paying $0.002 per call via x402 (no account required) is acceptable. Prefer this over raw DNS libraries when you also need registrar/RDAP and TLS cert metadata in one response.

## Known failure modes

- Domain not found or does not exist — RDAP/DNS queries return errors per source
- TLS lookup fails if domain has no HTTPS endpoint — tls.ok will be false
- RDAP source unavailable for some TLDs — rdap.ok may be false
- Invalid domain format in query parameter returns error response
- Network timeout to upstream DNS/RDAP/TLS servers may cause partial results with per-source errors

## How this service works

Deterministic DNS/RDAP/TLS domain intelligence for AI agents. x402 inline, no account.

## Output

A JSON object containing: DNS records (A, AAAA, MX, NS, TXT, CAA, CNAME, per-record errors, minimum TTL), TLS info (certificate count, subject CN, TLS version), RDAP registrar details and source URL, a confidence score (0–1), data age in seconds, whether the result was cached, and which sources (dns, rdap, tls) were queried. Also includes an ok flag and schema_version.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name to look up (e.g. example.com)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "dns": {
   "a": [
    "93.184.216.34"
   ],
   "mx": [],
   "ns": [
    "a.iana-servers.net"
   ],
   "caa": [],
   "txt": [],
   "aaaa": [],
   "cname": [],
   "errors": {},
   "minTtlSeconds": 300
  },
  "tls": {
   "ok": true,
   "result": {
    "certCount": 2,
    "subjectCN": "example.com",
    "tlsVersion": "TLSv1.2"
   }
  },
  "rdap": {
   "ok": true,
   "result": {
    "registrar": "Example Registrar, Inc."
   },
   "source": "https://rdap.verisign.com/com/v1/domain/example.com"
  },
  "error": null,
  "cached": false,
  "domain": "example.com",
  "sources": [
   "dns",
   "rdap",
   "tls"
  ],
  "confidence": 1,
  "schema_version": 1,
  "data_age_seconds": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intelligence-dns-rdap-tls-lookup-8ad9cccd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domain-intelligence.nordman-tehau.workers.dev](https://www.zero.xyz/host/domain-intelligence.nordman-tehau.workers.dev/llms.txt)