Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Pullstring - Powering computer conversation across all platforms.
Mycroft.AI - Mycroft is the world’s first open source assistant.
ChatterOn for Messenger - Build Facebook chat-bots in under 5 minutes
Google Assistant - Get things done with Google Assistant