AuthServer2
From OuroDev
AuthServer2 is a NodeJS-based replacement for the vanilla AuthServer and should interface with the most common branch of the CoX source.
Repo
Download the server from here. Follow the instructions in the README.md to set it up.
The server can fully replace the AuthServer from the main repo. However, it is in development and many features are unimplemented (such as stat/user tracking, etc).