# email-verification

> Verifies an email address's syntax, MX resolution, and disposable-domain status.

## Payment

This service uses the x402 protocol (v2). Each POST /verify request requires a payment of
0.002 USDC on Base mainnet (network eip155:8453) to 0x762cf9834691286218D873eA04B898E26F0963c5.

## Endpoints

### POST /verify

Body JSON: { "email": "user@example.com" }

Response 200 (after payment):
{
  "email": "user@example.com",
  "valid_syntax": true,
  "domain": "example.com",
  "mx_found": true,
  "mx_records": ["mail.example.com"],
  "disposable": false,
  "risk": "low"
}

## Usage

1. Send the request without payment -> receive 402 + x402 challenge
2. Pay 0.002 USDC on Base mainnet to the address shown
3. Resend the request with the payment credential
4. Receive the structured JSON result