Meya.ai - Build, train and host sophisticated bots.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Chatbots - Chatbots.org (BETA)
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Chatbot Templates - 50+ bot templates you can use in one click
IBM Watson Assistant - Watson Assistant is an AI assistant for business.