EiraIRC

EiraIRC is a mod by Blay09 used to bridge the Minecraft chat with IRC channels. It works on clients and servers independently. When installed on a server, it will create a bridge-bot, that relays messages from IRC to the in-game chat and vice versa without requiring the players to have the mod installed. On the client, it allows the user to choose which channel they are talking in, or if they are talking in Minecraft at all.

This mod is very similar to ForgeIRC, though it has much more advanced features and configurations.

EiraIRC allows the player to automatically upload screenshots that are taken to Imgur or DirectUpload. It supports private IRC messages, and Twitch channel chat. It can be configured to relay player events such as deaths to the IRC channel(s). With EiraIRC, OP commands can be run from the IRC channel. The !who command can be run to output a notice (only that user will see it) describing who is on the server or servers.