Botsify - Ever wonder if you could replace your live chat support system with a chatbot?. Its possible now with Botsify Chatbot For Website.
Microsoft Bot Framework - Framework to build and connect intelligent bots.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Gomix - The easiest way to build the app or bot of your dreams
Massively - Create and deploy polished chat bots
BotList - An app store for bots