Roblox Studio MCP server

This MCP server enables seamless communication between Roblox Studio and Claude Desktop, allowing Claude to interact with your Roblox projects through the Model Context Protocol. The server acts as a bridge, facilitating commands from Claude to modify or read your Roblox place.

Installation Options

Using Release Binaries

1. Ensure you have Roblox Studio and Claude Desktop installed and started at least once.
2. Close both Claude and Roblox Studio completely.
3. Download and install:
   • Visit the releases page
   • Download the latest release for your operating system
   • Unzip if necessary and run the installer
   • Restart Claude and Roblox Studio

Building From Source

1. Ensure Roblox Studio and Claude Desktop are installed and have been started at least once.

2. Close both applications completely.

3. Install Rust if you haven't already.

4. Download or clone the MCP server repository.

5. Run the build command:

   cargo run
   

   This command will:

   • Build the Rust MCP server
   • Configure Claude to communicate with the server
   • Build and install the necessary Studio plugin

Verifying Your Installation

After installation, confirm everything is working properly:

1. Open Roblox Studio and check the Plugins tab for the MCP plugin.
2. Look for the message The MCP Studio plugin is ready for prompts in the Studio console.
3. In Claude Desktop, click the hammer icon beneath the prompt text field to confirm you can see the available Roblox Studio tools (insert_model and run_code).

Using the MCP Server

1. Open a place in Roblox Studio.
2. Type a prompt in Claude Desktop that requires interaction with your Roblox project.
3. Accept any permission requests for Claude to communicate with Studio.
4. Verify the results by:
   • Checking the Studio console output
   • Examining changes in the Explorer panel
   • Visually confirming changes in your place

If you encounter issues, try restarting both Roblox Studio and Claude Desktop. Note that Claude may remain hidden in your system tray, so ensure you've fully exited the application before restarting.

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.