NIRC

A channel-based chat mod for Minecraft Fabric. Adds in-game chat that runs over a secure custom protocol on a dedicated chat server — separate from the Minecraft server you're playing on. Runs entirely client-side, so it works on any server (vanilla, modded, LAN, singleplayer).

Features

• Channel-based chat with per-channel passwords, MOTDs, and admins
• Slash commands for sending, switching channels, and admin actions
• @mention highlight with sound notification
• Control panel UI for nickname / password / channel management
• Auto-restore last channel on reconnect

Security

• TLS 1.2 with client-side certificate pinning
• Mojang UUID verification — prevents trivial nick impersonation
• Yggdrasil challenge-response — verifies real Minecraft account ownership
• Per-IP and total rate limits on connections and messages
• Channel password lockout after repeated failures

Commands

Command Description /nirc Open the control panel /nirc chat Open the NIRC chat window /nc <message> Send one message to the current channel /ncgo <channel> [password] Switch channel /nclist List available channels /ncoff Disable chat /ch n Toggle chat /ncadmin <kick|ban|unban|motd|pass> ... Channel admin commands

Server

This mod connects to a fixed server, intended for a small invite-only community. There is no built-in mechanism to point it at other servers.

Requirements

• Minecraft 1.21.10, 1.21.11, 26.1.1, 26.1.2
• Fabric Loader ≥ 0.16
• Fabric API
• Java 21