MCP.Server

MCP server from AL4255/MCP.Server

Installation

Run this command in your terminal to add the MCP server to Claude Code.

Run in terminal:

Command

claude mcp add --transport stdio al4255-mcp.server node server.js \
  --env HOST="host to bind the MCP server" \
  --env PORT="port to run the MCP server"

How to use

The MCP.Server provides a modular Minecraft Protocol (MCP) server instance designed to host and manage MCP-based endpoints for processing and routing Minecraft protocol data. It is intended for developers looking to customize or extend MCP functionality with plugins or modules. After starting the server, you can connect Minecraft clients to the configured host and port, and use the built-in tooling to inspect protocol events, route data, and apply transformations or rules as defined by your MCP modules. Typical workflows involve loading plugin modules, configuring endpoints for specific protocol handlers, and utilizing the server’s management commands to monitor traffic, apply security rules, and debug protocol interactions.

How to install

Prerequisites:

Node.js (LTS) and npm installed on your machine
Basic familiarity with command line operations

Installation steps:

Clone the MCP.Server repository or download the release package git clone https://github.com/your-org/al4255-mcp.server.git cd al4255-mcp.server
Install dependencies npm install
Configure environment (optional but recommended)
- Create a .env file or export variables: PORT=25565 HOST=0.0.0.0
Run the server npm start or node server.js
Verify the server is running by connecting a Minecraft client to the configured host/port

If you plan to deploy via a container or different runtime, adjust the run command accordingly (see mcp_config for examples).

Additional notes

Notes:

Ensure the PORT you choose is open in your firewall if you plan to accept external connections.
If you add plugins or modules, verify compatibility with your MCP.Server version and the Minecraft protocol version you intend to support.
Common environment variables include PORT, HOST, and LOG_LEVEL; you can extend with custom variables for plugin configuration.
Check logs for startup errors and verify that necessary dependencies or native bindings are present on your system.
When modifying MCP behavior, maintain a clean separation between core server logic and plugin modules to simplify updates and debugging.

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