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FREE tier • No credit card • MCP + CLI + API

Email
validation
that's actually
easy.

Validate email addresses instantly via our free API, Claude MCP integration, or CLI. Catch bad emails before they cost you — syntax errors, dead domains, disposable addresses, typos, and more.

Start for free → Read the docs

✓ Free forever for 1,000 validations/month  •  ✓ No card needed

Try it right now LIVE

Try: [email protected]  •  [email protected]  •  your own email

WHAT WE CHECK
Syntax validation MX record lookup Disposable email detection Typo correction suggestions Role-based address flagging Free provider detection Claude MCP native Batch validation Syntax validation MX record lookup Disposable email detection Typo correction suggestions Role-based address flagging Free provider detection Claude MCP native Batch validation
WHAT VALIDATEEASY CHECKS

Six ways we catch bad emails before they cause problems.

01
✏️

Syntax Validation

Full RFC 5322 compliance checking — not just a lazy regex. Catches malformed addresses that would silently bounce or get rejected by your database constraints.

02
📡

MX Record Lookup

Live DNS verification that the domain actually accepts email. Kills dead domains and abandoned TLDs before you waste a send on them.

03
🗑️

Disposable Email Detection

50,000+ known throwaway providers in our blocklist, updated continuously. Mailinator, Guerrilla Mail, 10MinuteMail — we know them all.

04
💡

Typo Suggestions

"Did you mean gmail.com?" — we catch common domain typos like gmial.com, gmai.com, yahooo.com so your users actually receive their confirmation emails.

05
🏢

Role Address Flagging

info@, noreply@, admin@, support@ — shared inboxes that rarely convert or engage. Flag them before you spend budget emailing a black hole.

06
📊

Free Provider Detection

Instantly know if a signup is using Gmail, Yahoo, or Outlook. Route B2B vs personal leads differently at the point of capture, not after the fact.

THREE WAYS TO INTEGRATE

Works wherever
you already work.

MCP — Claude Integration
# Add to claude_desktop_config.json
 
{
  "mcpServers": {
    "email-validator": {
      "type": "http",
      "url": "https://api.validateeasy.com/mcp",
      "headers": { "X-Api-Key": "YOUR_KEY" }
    }
  }
}
 
# Then ask Claude: "validate these emails"
CLI — Terminal
# Install globally
$ npm install -g @validateeasy/cli
 
# Set your key once
$ export VE_API_KEY="YOUR_KEY"
 
# Check a single email
 
✓ valid  · mx ok · not disposable
 
# Or bulk from a CSV
$ ve check --file list.csv --json
REST API — Any Language
# Single validation
$ curl "https://api.validateeasy.com/validate
  -H "X-Api-Key: YOUR_KEY"
 
{
  "status": "valid",
  "result": "Okay to Send",
  "checks": { "mx": true,
    "disposable": false }
}

How we compare to
the alternatives.

We're the cheapest email validation API around — and the only one with native Claude MCP support.

ValidateEasy NeverBounce ZeroBounce
Starting price FREE Pay-as-you-go Pay-as-you-go
Cost per 1,000 emails $0.36 $8.00 $4.00
Free tier ✓ 1,000/mo ✗ ✓ limited
Claude MCP integration ✓ ✗ ✗
CLI tool ✓ ✗ ✗
Typo suggestions ✓ ✗ ✓
No credit card to start ✓ ✗ ✗

Simple pricing.
No surprises.

All plans include API, MCP, and CLI access. No contracts, no minimums.

ALWAYS FREE
Free
$0/month
1,000 validations / month
  • ✓
    Syntax & MX checks
  • ✓
    Disposable detection
  • ✓
    Typo suggestions
  • ✓
    MCP & CLI access
  • Batch API
  • Priority support
Get started free
MOST POPULAR
Starter
$9/month
25,000 validations · $0.00036/email
  • ✓
    Syntax & MX checks
  • ✓
    Disposable detection
  • ✓
    Typo suggestions
  • ✓
    MCP & CLI access
  • ✓
    Batch API (up to 100)
  • ✓
    Email support
Upgrade to Starter
HEAVY HITTER
Pro
$49/month
250,000 validations · $0.00020/email
  • ✓
    Syntax & MX checks
  • ✓
    Disposable detection
  • ✓
    Typo suggestions
  • ✓
    MCP & CLI access
  • ✓
    Batch API (up to 500)
  • ✓
    Priority support
Upgrade to Pro

All plans include a free API key. No credit card required to start. Cancel anytime. Unused validations don't roll over.

Why email validation matters more than you think.

Every bad email address in your list is a problem waiting to happen. Bounced emails damage your sender reputation with Gmail, Outlook, and Yahoo — push your bounce rate above 2% and you'll start landing in spam folders, even for valid addresses.

Disposable emails from services like Mailinator or Guerrilla Mail are frequently used to abuse free trials, inflate signup numbers, and game referral programs. Catching them at the point of entry saves you from fraud and skewed analytics.

Typos are surprisingly common — studies suggest up to 3% of email addresses entered manually contain a domain typo. Catching gmial.com before it hits your database means more users actually receive their welcome email and complete onboarding.

ValidateEasy gives you all of these checks through a simple API, a Claude MCP integration that works inside your AI workflows, and a CLI for quick checks from your terminal — all starting completely free.

Frequently asked
questions.

What is an email validation API? +
An email validation API checks whether an email address is real, properly formatted, and capable of receiving mail — without sending a test message. It verifies syntax, DNS records, and flags risky addresses like disposables or role-based inboxes.
What is MCP email validation? +
MCP (Model Context Protocol) lets Claude and other AI tools call external services as tools. With ValidateEasy's MCP endpoint, you can ask Claude to validate emails directly inside a conversation — no copy-pasting, no switching windows. It's the fastest way to integrate email validation into an AI workflow.
How accurate is disposable email detection? +
We maintain a blocklist of 50,000+ known disposable and temporary email providers, updated continuously. While no list is exhaustive (new providers appear constantly), we catch the overwhelming majority of throwaway addresses used in practice.
Does email validation actually check if the inbox exists? +
We check MX records to confirm the domain accepts email, but we do not perform SMTP mailbox verification (pinging the server to check if a specific inbox exists). Many mail servers block or give false responses to SMTP probing. Our checks are fast, reliable, and don't risk getting your IP blocked.
Is there a free email validation API? +
Yes — ValidateEasy includes a permanently free tier with 1,000 validations per month, no credit card required. It includes syntax checks, MX record lookup, disposable detection, typo suggestions, and both MCP and CLI access.
How do I add email validation to Claude? +
Add our MCP endpoint to your claude_desktop_config.json with your API key. Restart Claude Desktop, and it will automatically have access to validate_email and validate_emails tools. You can then ask Claude to validate emails naturally in conversation.

Ready to clean up your list?

Start free. No credit card. 1,000 validations per month, forever.

Get your free API key → Read the docs