
Not Enough Management
modExtends and enhances Minecraft's built-in Server Management Protocol (JSON-RPC over WebSocket).
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Extends and enhances Minecraft's built-in Server Management Protocol (JSON-RPC over WebSocket).

A server-side Fabric Mod for Minecraft 25w35a / 1.21.9+ that adds more features to the Minecraft Server Management Protocol (MSMP). The MSMP provides an API over websocket that allows you to get live updates, change values, and request information from/to a Minecraft server without much hassle. Communication is done both-ways with JSON objects.

The vanilla Server Management Protocol features can be found on the wiki.
| Path | Description | Parameters | Example Response |
|---|---|---|---|
/chat_message | Player's Chat Message | message: Chat Message | {"jsonrpc":"2.0","method":"notification:chat_message","params":[{"id":"e68e2363-f1bb-446c-aeef-cccd23aeafb7","name":"DanMizu","message":"Hello World!"}]} |
id: stringname: stringmessage: string1- Enable the Server Management Protocol/Management Server in your server.properties file.
management-server-enabled
falsetruemanagement-server-host
localhostlocalhost⚠️ Warning Ideally you keep this set to
localhostand only run services that need to access the server on the same machine. If you trust everyone that's connected to your local network (you shouldn't!), then set to0.0.0.0to allow other machines on the same network to access the server.
management-server-port
25585🚫 Caution DO NOT FORWARD THIS PORT (Port-forwarding). There is no authentication built into the management server and anyone that can connect essentially has full control over your server. You're recommended to run services that use it on the same machine and keep
management-server-hostset tolocalhost.
2- Download this mod, making sure to match it to the minecraft version of your fabric server.
3- Add the downloaded .jar file of this mod into your mods folder in your server, and start/restart.
You can use this with anything that can connect over websockets. This example uses Node.js, specifically the wscat package. If you want to follow along, make sure to first install Node.js and NPM (NPM should be automatically installed alongside Node.js).
npm install -g wscat.wscat -c ws://<management-server-host>:<management-server-port>