This is a minetest mod which adds many commands and aliases.
Arcadia. Probably an open source chat platform? :rocket:
:package: node package for building chat bots for VK communities (uses Callback API)
💬 Unofficial WeChat client built with React, MobX and Electron.
Ruby on Rails App. A good example of how to build social networking system with live chat support, blogging,groups etc.
iOS Messaging Application using Cleverbot and ReactorKit
Self hosted live chat server written in Go