MSMP Console

A server-side Fabric mod that extends the Minecraft Server Management Protocol (MSMP) by forwarding every server console log event.

Installation

1. Download the mod .jar and place it in your server's mods/ folder.

   management-server-enabled=true
   

2. Start the server. The Management Server will listen on localhost:25576 by default.

Notification

Once a client connects to the WebSocket endpoint, it will receive a notification for every log event produced by the server.

Method: console:notification/log_event

Payload

Example

{
  "jsonrpc": "2.0",
  "method": "console:notification/log_event",
  "params": [{
    "timestamp": "2026-03-21T15:06:06.146Z",
    "level": "INFO",
    "thread": "Server thread",
    "logger": "net.minecraft.server.MinecraftServer",
    "message": "Done (1.019s)! For help, type \"help\""
  }]
}

{
  "jsonrpc": "2.0",
  "method": "console:notification/log_event",
  "params": [{
    "timestamp": "2026-03-21T15:06:07.212Z",
    "level": "ERROR",
    "thread": "Server thread",
    "logger": "net.minecraft.server.MinecraftServer",
    "message": "Encountered an unexpected exception",
    "throwable": "java.lang.NullPointerException: Cannot invoke ...\n\tat net.minecraft.server.MinecraftServer..."
  }]
}

License

LGPL-3.0