A Minecraft proxy built for modded servers
Kojacoord is the Rust proxy that runs KojaCraft. We needed something that could handle serious modded servers, so we built it ourselves — and it's free and open source.
- Tokio
- Rust core
- Multi
- Protocol
- Built-in
- Anti-cheat
How it works
One endpoint in front of your whole network
Kojacoord sits between clients and your backend servers, handling protocol, auth, anti-cheat, and plugins so each server can focus on running the game.
Players connect
Clients on different Minecraft versions connect to one Kojacoord address — no mods needed on the client side.
Kojacoord handles the rest
The proxy handles protocol translation, auth, anti-cheat, and plugins, then sends players to the right server.
Backends do what they do best
Your modded servers get clean traffic and can be restarted or swapped without disconnecting players.
Use cases
What you can build with Kojacoord
The same tech that powers KojaCraft — packaged for your own servers.
Modded networks
Full Forge FML handshake support, so modpack servers can run behind one proxy without breaking client mods.
Multi-version support
Accept clients from 1.8 to the latest release with automatic protocol translation.
Anti-cheat at the edge
Catch cheaters before their traffic reaches your game servers.
Plugin system
Hook into packets and events with the native plugin system and cargo-kpl.
Online & offline auth
Full Mojang auth, or offline mode for private servers and dev setups.
Hot-swapping
Move players between servers and restart backends without disconnecting anyone.
Monitoring
Dashboard API and metrics give you real-time visibility into the network.
Easy to operate
TCP control interface and clean config make day-to-day management simple.
What's next for Kojacoord
Shipped, in progress, and planned — pulled live from ROADMAP.md in the repo.