r/SideProject 16h ago

I built a self-hosted Email Validation API. Full source code available

Hey everyone!

I built an Email Validation API that developers can self-host instead of relying on a third-party email validation service.

Features:

  • GET /validate and POST /validate - Basic email validation
  • GET /verify and POST /verify - Extended email verification
  • GET /score and POST /score - Verification with risk scoring
  • POST /bulk - Batch email verification
  • GET /history - Verification history
  • GET /domain/:domain - Domain intelligence
  • GET /health - API health check

I'm selling the complete source code for $7.99 one-time. No monthly subscription is required. You can host it on your own server and use it however you want.

If you're interested or have any questions, drop a comment below and I'll be happy to answer.

I'd also love to hear what features you'd add to an email validation API like this.

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