# Domain Reputation & Risk Check

> Domain Reputation & Risk Check is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-13).

Returns a comprehensive domain reputation report with risk summary (low/medium/high), RDAP/WHOIS data, DNS records, email security posture, SSL certificate details, and domain age for fraud detection and KYA workflows.

## Facts

- Endpoint: GET https://api.x402node.dev/domain/check
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-x402node-dev-fdb5fe9d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xvW-7TW3EDhRPDObe6F3d

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 api-x402node-dev-fdb5fe9d
```

Example prompt: Can you run a full domain reputation check on acme-payments.io and tell me the risk level — I need to know if it's a trustworthy domain before we proceed, including its age, DNS setup, and whether it has proper SPF/DMARC records?

## When to prefer this

Use this endpoint when you need a consolidated, multi-signal domain risk assessment in a single call — especially for fraud detection pipelines, KYA workflows, or marketing list scrubbing where you need RDAP, DNS, email security, and SSL data together rather than querying each separately. Prefer this over individual WHOIS or DNS lookup tools when a holistic risk_summary verdict is needed.

## Known failure modes

- Domain not found in RDAP/WHOIS returns partial or empty registration data
- Invalid domain format returns 400 error
- SSL certificate lookup fails for domains without HTTPS
- DNS propagation delays may cause missing records
- Rate limiting or payment failure returns 402 or 429 error
- Very new TLDs may not support RDAP and fall back to legacy data

## How this service works

Comprehensive domain reputation report combining RDAP (modern WHOIS), DNS records, email security (SPF/DKIM/DMARC), SSL certificate inspection, and domain age. Returns risk_summary (low/medium/high) and specific risk_reasons. Use ?domain=example.com. Built for fraud detection, marketing list verification, KYA workflows, and security agents. Accepts payment on Base or Solana — either network works.

## Output

A comprehensive JSON report including a risk_summary field (low/medium/high), an array of risk_reasons explaining the assessment, RDAP/WHOIS registration data, full DNS records, email security configuration (SPF, DKIM, DMARC), SSL certificate details, and calculated domain age.

## 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",
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-x402node-dev-fdb5fe9d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)