# DevX Domain DNS & Email Security Audit

> DevX Domain DNS & Email Security Audit is a paid API for AI agents from devx-x402-tools.nextill-pos.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Performs a DNS lookup and email security audit for a domain, returning SPF/DMARC records, MX records, DNSSEC status, and a hygiene score.

## Facts

- Endpoint: GET https://devx-x402-tools.nextill-pos.workers.dev/v1/domain/check?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/devx-domain-dns-email-security-audit-6b1fad0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iD56eKK3NSaQgOcgnfVF1

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 devx-domain-dns-email-security-audit-6b1fad0e
```

Example prompt: Can you audit the DNS and email security setup for stripe.com — I want to know if they have SPF, DMARC, MX records, and DNSSEC, and give me an overall hygiene score?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call DNS and email security audit without API key setup. It is ideal for one-off domain checks, vendor assessments, or pre-send deliverability validation. Prefer it over manual DNS lookups or multi-tool pipelines when you need SPF, DMARC, MX, DNSSEC, and a composite hygiene score in a single response.

## Known failure modes

- Domain does not exist or is unresolvable — returns exists:false with relevant findings, no charge
- Invalid domain format input — returns 400 error, no charge
- Upstream DNS resolver failure — returns error, no charge
- Timeout from upstream DNS infrastructure — returns error, no charge

## How this service works

Pay-per-call utilities for AI agents, no API key or signup: read any web page as clean Markdown ($0.002), link/SEO metadata ($0.001), domain DNS + SPF/DMARC email-security audit ($0.003), ERC-20 token safety pre-check ($0.005), crypto address validation, on-chain payment verification, EIP-681/BIP21/Solana Pay payment requests with QR, multichain USDC balances ($0.01). x402 v2, USDC on Base. Invalid input / upstream failure is never charged.

## Output

Returns a JSON object containing the domain name, whether it exists, a list of findings with severity levels (e.g. missing MX records), email authentication details (SPF record string, DMARC record string, DMARC policy value), a numeric hygiene score from 0–100, and a boolean DNSSEC validation flag.

## 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": {
  "domain": "example.com",
  "exists": true,
  "findings": [
   {
    "msg": "no MX records: domain does not receive email",
    "level": "info"
   }
  ],
  "email_auth": {
   "spf": "v=spf1 -all",
   "dmarc": "v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s",
   "dmarc_policy": "reject"
  },
  "hygiene_score": 97,
  "dnssec_validated": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/devx-domain-dns-email-security-audit-6b1fad0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from devx-x402-tools.nextill-pos.workers.dev](https://www.zero.xyz/host/devx-x402-tools.nextill-pos.workers.dev/llms.txt)