Caffeine for Mac - Caffeine is a tiny program that puts an icon in the right side of your menu bar.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
KeepingYouAwake - A Caffeine clone for macOS Yosemite, El Capitan and Sierra (including Dark Mode).
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Caffeine by IntelliScape Solutions - Don't let your Mac fall asleep.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.