Open-Source Email Verification API

Prevent bounced emails with world-class email verification.

SaaS Business 41,415 views

Your are missing out on important information about this listing.
Sign in to your account to view all the metrics.

Sign In

Listing Details

An open-source email verification API. Checks if an email exists, without sending any email.



Become the biggest competitor to Clearbit.


Use Cases:

๐Ÿ™…โ€โ™€๏ธ Prevent spam sign-ups on your website,

๐Ÿงน Cleaning up mailing lists from junk emails.



๐ŸŽฏ Accurate - it actually connects to the mail server to check deliverability,

๐Ÿฆ€ Fast, as it's written in the performant language Rust. Each verification takes in average 1.9s,

๐Ÿ•ถ๏ธ Privacy-focused and GDPR-compliant,

๐Ÿ›  Scales well with elastic horizontal scaling,

๐Ÿ“Š Checks MX, SMTP, catch-all, DEA... and more,

๐Ÿ’ณ Easy monthly subscription with Stripe,

๐Ÿ“ 100% Open-Source,

๐Ÿ˜บ Free for personal use.

How can the buyer take this project further?

Send me a message, I reply pretty fast.

Tools & Technologies

Git, Github, Heroku, Javascript, Netlify, PostgreSQL, React, Rust, TypeScript

Skills Required



Business, Email, Open Source

Reason for Selling

I have other projects or businesses I would like to focus on

Your Options

Included in the Sale

  • Includes website
  • Includes domain
  • Includes source code
  • Includes design source files
  • Includes marketing assets
  • Includes hosting accounts

Other Information

  • 8 Offers received

Recent Offers