Serverless
Runs entirely on Vercel free tier. No server to manage.
Verify your users,
instantly
A lightweight self-hosted OTP microservice powered by Next.js, Upstash Redis and sms-gate.app
Secure
SHA-256 hashed OTPs, attempt limiting, and 5 minute TTL expiry.
Simple
Two API endpoints. Drop-in for any app — React, Flutter, anything.