Internet Relay Chat by kaeza
Connect your server to an IRC channel, and install irc_commands to control the server from IRC
Bridges
A collection by localhost
Packages
IRC Commands by ShadowNinja
Control your server from IRC
Matrix Chat by joenas
This mod creates a bridge between a Matrix channel and the in-game chat!
YL Matterbridge by AliasAlreadyTaken
Handles chat between Minetest and Matterbridge
Matterbridge Player Events by cj_clippy
Sends a message to the matterbridge when a player joins/parts
Minetest-Telegram Bridge by 1F616EMO
Chat bridge between Minetest and Telegram
Discord-Minetest Relay by archfan7411
Mod + external program providing Discord relaying and commands.