Email Validator API
Verify email address validity and improve deliverability before sending.
- Protect your email campaigns
- Improve sender reputation
- Increase deliverability
REST API · Batch verification · MCP
Email verification API for cleaner signups and email lists
Check deliverability, disposable addresses, privacy relays, catch-all mailboxes, and MX records before an email reaches your product or campaign.
No credit card required. Test it with free credits.
- Free account
- 50 API calls
- Pay as you go
- $5 / 10k
- Batch endpoint
- 100 inputs
- Access
- REST + MCP
POST /v1/verify
curl https://api.verify-email.app/v1/verify \
-H "x-api-key: YOUR_API_KEY" \
-H "content-type: application/json" \
-d '{"input":"[email protected]"}'JSON response
{
"valid": true,
"deliverable": true,
"disposable": false,
"mx_found": true,
"block": false
}Live checker
Enter email address or domain
Check deliverability, disposable addresses, privacy relays, catch-all mailboxes, and MX records before an email reaches your product or campaign.
Verification + policy controls
Email verification API to protect your business
Disposable Email Checker API
Protect your service from abuse by identifying and blocking temporary email addresses.
- Protect your product from abuse
- Clean mailing list from temporary emails
- Save server resources
Blacklist API
Block unwanted email addresses and domains with deterministic rules in API response.
Learn moreWhitelist API
Allow trusted emails and domains in real time and enforce policy decisions through one API response.
Learn moreMCP Server
Use email verification directly inside Cursor, Claude Desktop, 8n8, and other MCP-compatible AI tools.
Learn moreOne-time purchase
Get 10,000 credits for every $5. Choose any amount from $5 to $5,000.
Credits never expire · No subscription
Three steps
How email verification API works
01
Send Request
Submit an email address for verification through our API
02
Instant Analysis
Our service determines if it's disposable or invalid email
03
Take Action
Receive instant results and make informed decisions
FAQ
Email Verification – Frequently asked questions
Can I subscribe or buy credits separately?
Yes. Choose a monthly subscription for regular usage, or buy credits as a one-time pay-as-you-go purchase — 10,000 credits for every $5, from $5 to $5,000. One-time credits never expire and no subscription is required.
What is verify-email.app?
verify-email.app is an email API service that helps you easily verify visitor email addresses with minimal coding. We handle the complex tasks like verifying emails and detecting disposable or temporary addresses. Rather than building your own email verification system for your website or app, you can rely on our service to ensure that your visitor's email is genuine and not a temporary one.
Do you offer a free trial?
Yes! We offer a free trial with 50 API calls. No credit card is required to start. You can sign up and start using our API right away. This allows you to test our service and see how it can benefit your business before committing to a paid plan.
What is an invalid email address?
An invalid email address is one that cannot receive emails due to various reasons: it may have syntax errors, the domain might not exist, the mailbox might be full or deactivated, or the mail server might be incorrectly configured. Invalid emails can also include addresses with typos or deliberately fake addresses.
What is a disposable email address?
A DEA, or disposable email address is a temporary, throw-away address that expires after a short period of time. DEA provider websites offer a service where users can generate a temporary email address.
How can I stop disposable email addresses from entering my mailing lists?
A real-time email verification API is an excellent way of stopping disposable emails from getting into your database.
Can I cancel or upgrade my current plan at anytime?
Yes, you can cancel or change your plan at any time. However, your plan will remain active until the end of the current billing cycle.
Start protecting your business from fake emails today
No credit card required • Instant Access