Conversity - Easiest way to manage Facebook Messenger chats
Gomix - The easiest way to build the app or bot of your dreams
Slack with your Users - Speak to your app's users entirely within Slack
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
VECA - Your eCommerce assistant
Octane AI - Octane AI offers tools to create a bot and engage customers and audience via messaging.