# Domain Intelligence API

> Paid x402 API for AI agents that returns domain intelligence, DNS lookup data, domain risk signals, security posture, WHOIS-like technical data, mail security, TLS, HTTP headers, fingerprinting and AI agent domain analysis for a public domain.

Intent: x402 domain intelligence API, AI agent domain data API, domain security posture API, domain risk API, DNS lookup paid API

## Discovery

- OpenAPI: https://api.x402dataapi.com/openapi.json
- x402 catalog: https://api.x402dataapi.com/.well-known/x402-catalog.json
- Capabilities: https://api.x402dataapi.com/capabilities
- Pricing: https://api.x402dataapi.com/pricing

## Tags

- x402
- ai-agents
- domain-intelligence
- cybersecurity
- dns
- domain-risk
- security-posture
- mail-security
- tls
- http-headers
- fingerprinting

## Endpoint

- Method: POST
- URL: https://api.x402dataapi.com/v1/domain-intel
- Price: 0.002 USDC
- Network: eip155:8453

## Input schema

```json
{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Public domain name to inspect"
    }
  },
  "required": [
    "domain"
  ]
}
```

## Output example

```json
{
  "domain": "example.com",
  "dns": {},
  "mail_security": {},
  "tls": {},
  "http": {},
  "fingerprint": {},
  "risk_score": 0,
  "summary": []
}
```

## curl without payment

```bash
curl -X POST https://api.x402dataapi.com/v1/domain-intel -H 'Content-Type: application/json' -d '{"domain":"example.com"}'
```

## x402 payment behavior

Unsigned paid calls return HTTP 402 with a PAYMENT-REQUIRED header. Pay with x402, then retry with PAYMENT-SIGNATURE.

## Agent use case

DNS, TLS, mail security, HTTP security and fingerprint data for a public domain.

## Discovery keywords

x402 domain intelligence API, AI agent domain data API, domain security posture API, domain risk API, DNS lookup paid API