OK Google - Explore over 150 Google Now voice commands in one place
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
Hal - Humans are Underrated, F*CK AI
Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
Osara - Osara brings Command Palette for app menus to all your apps
Voiceflow - Build voice apps in your browser without coding