I built an email validation API that goes beyond format checking — here is what it does

#api #webdev #showdev #python

Most email validators do one thing — check if the @ symbol is in the right place. That is it. Your database still fills up with throwaway addresses, typos, and dead domains.

I spent months building MailForge to actually solve this problem.

What it checks:

Format validation — catches malformed addresses before anything else
Live MX record lookup — verifies the domain has active mail servers, not just that it exists
Disposable detection — blocks Mailinator, Guerrilla Mail, and hundreds of throwaway services
Domain age — flags domains registered recently pretending to be legitimate businesses
Typo correction — catches gmial.com, yahooo.com, hotmial.com and suggests the correct address
AI risk score — uses Claude AI to return a 0-100 score rated LOW, MEDIUM, HIGH, or INVALID

One API call. Send one GET request with an email address and get back 12 data points in under a second.

Try it:

Live demo with no signup required: https://mailforgeapi.netlify.app

Available on RapidAPI with a free tier: https://rapidapi.com/forgeapiwork/api/mailforge-email-validation

Would love feedback from anyone who has dealt with email validation in their projects.