Meya.ai - Build, train and host sophisticated bots.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Botkit - Botkit is an open source developer tool for building chat bots, apps and custom integrations for major messaging platforms.
Message Me - Website to create your contact business card
Dialogflow - Conversational UX Platform. (ex API.ai)
Amazon Lex - Harness the power behind Amazon Alexa for your own conversational apps.