Email Validation Made Simple

Fast, reliable email validation API built for developers. Verify syntax, check domains, detect disposables—all in milliseconds.

const response = await fetch('https://api.mailcheck.dev/v1/validate', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    email: 'user@example.com'
  })
});

const { valid, checks } = await response.json();
// ✓ Valid email with detailed checks
99.9%
Uptime SLA
<50ms
Avg Response
5M+
Validations/Month
100%
Free to Start

Everything You Need to Validate Emails

Comprehensive validation checks built on modern infrastructure

Lightning Fast

Sub-50ms average response times. Built on edge infrastructure to ensure your users never wait.

Syntax Validation

RFC 5322 compliant format checking. Catch malformed addresses before they cause issues.

Domain Verification

Real-time MX record lookups to verify domains have valid mail servers configured.

Disposable Detection

Identify temporary email services with daily-updated database of disposable domains.

Smart Suggestions

Detect common typos like "gmial.com" and suggest corrections automatically.

Role Detection

Identify role-based emails (info@, support@, admin@) for better user targeting.

Get Started in Seconds

Create your account and get your API key instantly. No credit card required.

Welcome to MailCheck.dev! 🎉

Your account has been created successfully

Your API Key:

Next Steps:

  • Check your email for verification link
  • Visit your dashboard to see usage stats
  • Read our documentation to integrate

Simple, Transparent Pricing

Start free. Scale as you grow. No hidden fees.

Free
$0/month
Perfect for testing and hobby projects
  • 100 validations/month
  • Syntax validation
  • MX record checks
  • Disposable detection
  • Community support
Starter
$9/month
For growing applications
  • 1,000 validations/month
  • All Free features
  • Typo suggestions
  • Role detection
  • Email support
Enterprise
$99/month
For high-volume operations
  • 100,000 validations/month
  • All Pro features
  • Dedicated support
  • 99.9% SLA
  • Custom integrations

Ready to Validate Emails?

Join developers building better applications with reliable email validation