[WeeChat](http://weechat.org/) is a super powerful CLI chat client that is extensible in many languages to allow for new protocols like Matrix. @torhve contributed this great WeeChat script for Matrix which is getting a good feedback from more geeky users.
To use it, you will need to sign up for a Matrix account on a server using the [Console Web](./matrix-console.html) or [Vector](./vector.html) clients, as WeeChat doesn’t support registration yet.