If you have little bandwidth and lots of time (self-hosted anything implies “yes”!) then you could easily check out a copy of SlackKit and write yourself a tiny

If you have little bandwidth and lots of time (self-hosted anything implies “yes”!) then you could easily check out a copy of SlackKit and write yourself a tiny API client, or checkout any SlackKit-using app that has a sufficiently acceptable feature set. There are lots (see other comments in this post) and there was an ncurses one a while back too, so options abound. SlackKit would no doubt benefit from your time and attention to it as well!