A free, secure and open source app for Android to manage your 2-step verification tokens.

A java library for implementing Time-based One Time Passwords for Multi-Factor Authentication.

A one-time password (HOTP/TOTP) library for Java

Keycloak Authentication Provider implementation to get a 2nd-factor authentication with a OTP/code/token send via SMS (through AWS SNS). Demo purposes only!

A small and easy-to-use one-time password generator library for Java implementing RFC 4226 (HOTP) and RFC 6238 (TOTP).

React Native wrapper for Android's SMS User Consent API, ready to use in React Native apps with minimum effort.

A Sponge minecraft server plugin for second factor authentication

Protect Operator Accounts And Prevent Unauthorized Access. Scan players for blacklisted permissions and unauthorized access

Passwordless authentication server, supports OTP, WebAuthn and TOTP

A Two Factor Authentication plugin for Bungeecord, Spigot & Paper

Google Authenticator compatible 2-Factor Auth in Java

MC2FA is a two-factor authentication plugin for Bukkit/Bungee

The Java SDK for interacting with the Yoti Platform

Multi-Factor Authentication by Java with Spring. Java/Spring 接入身份验证器两步验证。Java 实现多因子认证。

Android OTP Authenticator App for privacyIDEA Authentication Server

autumo beetRoot - Slim & Rapid Java Web Framework

Second authentication for bukkit minecraft servers.

Example for implementing two factor authentication in Android using Twilio's Authy API and firebase. | TUTORIAL : https://pragmatictheories.tech/android-implementing-two-step-authentication-through-google-authenticator/

Discord 2FA is a Minecraft plugin designed to enhance the security of your Minecraft server by integrating two-factor authentication (2FA) with Discord.

Email based 2FA implementation using Spring-boot and Java-mail API