otp-io
🕖 Typed library to work 2fa via Google Authenticator/Time-based TOTP/Hmac-based HOTP
node-otp-sender
This is a simple package that used to send email-otp using node-mailer
nodejs-otp-generator
A lightweight node.js package for generating cryptographically secure OTP codes — ideal for SMS, email, and other verification flows.