@epic-web/totp
Create and verify cryptographically secure Time-based One-time Passwords (TOTP) using the HMAC-based One-time Password (HOTP) algorithm.
autowebotp
A simple library to automatically take and validate OTP codes for your website.
authy-client
A complete Authy client with support for TOTP, OneTouch, Phone Verification and Phone Intelligence APIs
hotp
HMAC-Based One-Time Password (HOTP), and Time-Based One-Time Password (TOTP) Algorithms