Some popular chat bot services are Pandorabots, Nina Web by Nuance, and Hubot and Lita by Github. The popularity of chat bot services that can be used for customer service and such tasks online is on the rise, and options for chat bot services are plenty.
Pandorabots builds bots to suit customer needs, and their bots can learn to remember details and evolve. Nina Web is a customer service chat bot designed to answer questions and help customers through the shopping process. Lita is a chat bot that is written in Ruby and can connect to different chat services such as IRC and HipChat. Hubot was originally written for Github’s own chatroom but is now an open source chat bot that can post images and translate languages, among other things.