authenticator-cli

A commandline Authenticator App (for Authy, Google Authenticator, Microsoft Authenticator, TOTP / 2FA / MFA / OTP, etc)

@epic-web/totp

Create and verify cryptographically secure Time-based One-time Passwords (TOTP) using the HMAC-based One-time Password (HOTP) algorithm.

authy-client

A complete Authy client with support for TOTP, OneTouch, Phone Verification and Phone Intelligence APIs