Zendesk Answer Bot - Chatbots
marbot - A Slack bot detecting and managing incidents on AWS.
Aivo - Skyrocket your Customer Service and Sales KPIs with a Chatbot powered by Artificial Intelligence. Give time back to people.
Rasa Core - Rasa Core is a well-designed dialogue engine used to create chatbots.
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Servers.lol - Should your EC2 be a Lambda?