A universal bridge for communications protocols. Presents a unified REST API so you don't have to worry about writing your own protocol adapters.
Protocols: IRC, XMPP, Gitter, Mattermost, Slack, Discord, Telegram, Rocket.Chat, Hipchat (via XMPP), Matrix, Steam, ssh-chat and Zulip
Appears that it's "one instance of this bridge to one service at a time."