Bottender - Framework for building conversational user interfaces.
Messaging APIs - Mono repo which collects APIs needed for bot development.
Hubot - Framework to build chat bots.
Virtual-Assistant - Linux based Virtual assistant on Artificial Intelligence in C.
Hybrid Conversational Bot - Based on both neural retrieval and neural generative mechanism with TTS.
Joonbot - No code free website bot maker.
Polis - AI powered sentiment gathering platform. More organic than surveys, less effort than focus groups.
OpenChat - Easy to use opensource chatting framework via neural networks.