# LION Domain Intelligence - DNS, TLS, HTTP & Trust Score Lookup

> LION Domain Intelligence - DNS, TLS, HTTP & Trust Score Lookup is a paid API for AI agents from lionx402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns DNS records, TLS certificate details, HTTP security headers, and a composite trust score for a given domain, with Ed25519 attestation.

## Facts

- Endpoint: GET https://lionx402.com/api/x402/domain-intel-json
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lion-domain-intelligence-dns-tls-http-trust-score-lookup-c495933f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s-vnTjtfYm3r8zl9dhq_r

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 lion-domain-intelligence-dns-tls-http-trust-score-lookup-c495933f
```

Example prompt: Can you check the domain intelligence for stripe.com — I want to see its DNS records, whether it has SPF and DMARC, TLS certificate expiry, HTTPS enforcement, and its overall trust score?

## When to prefer this

Choose this endpoint when you need a quick, verifiable snapshot of a domain's DNS health, TLS status, HTTP security posture, and trustworthiness in a single call — especially in agentic pipelines that require cryptographic attestation of the data. It is ideal for due diligence on vendors, counterparties, or leads, and for email deliverability pre-checks (SPF/DMARC). Pay-per-call USDC pricing makes it cost-efficient for spot lookups versus subscribing to flat-bundle infrastructure tools.

## Known failure modes

- Domain does not resolve — resolved: false, confidence lowered
- Invalid domain format — likely 4xx error response
- Domain exists but has no MX/SPF/DMARC — fields present but false
- TLS certificate expired or missing — days_to_expiry negative or null
- Payment not included or insufficient — HTTP 402 response requiring x402 USDC payment on Base
- Rate limit or service unavailability — 5xx response

## How this service works

Live domain trust signals: DNS (MX/SPF/DMARC/A) + HTTPS probe via Cloudflare DoH. Keyless $0.005.

## Output

A JSON object containing: DNS records (A, MX, NS, AAAA), SPF/DMARC presence, TXT record count; TLS issuer, expiry date, and days to expiry; HTTP server, status code, security headers (CSP, HSTS, X-Frame, X-Content-Type), HTTPS enforcement; a composite trust_score (0-1), confidence score, tech hints array, resolution status, asset_id, and as_of timestamp. Every response is Ed25519-attested for offline verification.

## 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"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "service": "LION Verified Company",
  "asset_id": "LION",
  "resolved": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lion-domain-intelligence-dns-tls-http-trust-score-lookup-c495933f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lionx402.com](https://www.zero.xyz/host/lionx402.com/llms.txt)