Snowboy - Snowboy is a customized hotword and wake word detection toolkit that recognizes your voice, runs in real time and on Raspberry Pi.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
Mycroft.AI - Mycroft is the world’s first open source assistant.
OpenJarvis - OpenJarvis is a lightweight configurable multi-lang bot.
Google Assistant - Get things done with Google Assistant