MCPBridge

Connect Claude Code and Ollama to Roblox Studio via the Model Context Protocol

Claude Code (stdio)
      │ MCP protocol
      ▼
  MCP Server ──── HTTP :7842 ───► Roblox Studio Plugin (Lua)
      │
      └── Ollama API (:11434) ──► minimax-m2.5:cloud

⚙️ Prerequisites - Required for Everyone

These steps are required regardless of your platform or install method.

1 - Download the source

Click Code → Download ZIP at the top of this page and extract it somewhere on your machine.

Then grab the installer for your platform from the Releases page:

_{Windows Installer}

_{macOS Installer}

Place the installer in the same folder as the extracted source before continuing.

2 - Install Node.js via NVM

🪟 Windows

Download and run nvm-setup.exe from the nvm-windows releases page, then open a new terminal and run:

nvm install lts
nvm use lts

This installs the latest Node.js LTS release and sets it as your active version.

🍎 macOS

Install nvm by running the install script in your terminal:

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash

Then restart your terminal (or run source ~/.zshrc), and run:

nvm install --lts
nvm use --lts
nvm alias default 'lts/*'

This installs the latest Node.js LTS release and sets it as your default.

3 - Install server dependencies

Navigate into the extracted folder and install dependencies:

cd roblox-ollama-mcp/mcp-server
npm install

[!WARNING] Do not skip this step. Without it, the MCP server will not start and nothing will connect.

4 - Enable Studio as MCP Server

[!IMPORTANT] To enable the MCP server in Studio:

Open Assistant

Click ... → Manage MCP Servers

Turn on Enable Studio as MCP server

🚀 Quick Install

🪟 Windows

Launch MCPBridge.exe
If index.js or OllamaMCP.lua weren't auto-detected, press Browse and select them manually - paths are saved automatically
Exit MCPBridge, then launch Claude Code via Ollama:
```
ollama launch claude --model minimax-m2.5:cloud
```
Start giving Claude prompts for your Roblox game and watch it build!

🍎 macOS

[!NOTE] On first launch macOS may show a security warning. Go to System Settings → Privacy & Security and click Open Anyway to allow it.

Launch MCPBridge.pkg
If index.js or OllamaMCP.lua weren't auto-detected, press Browse and select them manually - paths are saved automatically
Exit MCPBridge, then launch Claude Code via Ollama:
```
ollama launch claude --model minimax-m2.5:cloud
```
Start giving Claude prompts for your Roblox game and watch it build!

📦 Manual Setup

1 - Configure Claude Code

Add the MCP server to Claude Code's config. The config file lives at:

| OS | Path | |---------|-------------------------------| | macOS | ~/.claude.json | | Windows | %USERPROFILE%\.claude.json |

Add or merge this block (replace the path with your actual path):

{
  "mcpServers": {
    "roblox-ollama": {
      "command": "node",
      "args": ["/absolute/path/to/roblox-ollama-mcp/mcp-server/index.js"]
    }
  }
}

Then restart Claude Code. You should see roblox-ollama in your MCP tools list.

2 - Install the Roblox Studio Plugin

Open Roblox Studio
Go to Plugins → Plugin Folder (opens a folder in your file explorer)
Copy roblox-plugin/OllamaMCP.lua into that folder
Restart Roblox Studio
The "MCP Bridge" button appears in the Plugins toolbar

[!IMPORTANT] To enable the MCP server in Studio:

Open Assistant

Click ... → Manage MCP Servers

Turn on Enable Studio as MCP server

3 - Start Ollama

Pick a model and launch it with Ollama. The bridge calls the REST API at http://localhost:11434 automatically.

Recommended models:

# Balanced cloud model (default)
ollama launch claude --model minimax-m2.5:cloud

# Newer cloud model
ollama launch claude --model minimax-m2.7:cloud

# General purpose
ollama launch claude --model qwen3.5

# Coding focused
ollama launch claude --model qwen3-coder

# Lightweight / fast
ollama launch claude --model gemma4

4 - Connect everything

In Roblox Studio, click "MCP Bridge" in the toolbar - widget shows 🟢 Connected
Open Claude Code in your terminal
Start asking Claude to work on your Roblox scripts!

🛠 Available MCP Tools

Studio Tools

| Tool | Description | |------|-------------| | studio_status | Check if plugin is connected | | studio_list_scripts | List all scripts in the place | | studio_read_script | Read a script's source code | | studio_write_script | Overwrite a script's source | | studio_create_script | Create a new script instance | | studio_execute_lua | Execute Lua in the plugin context | | studio_get_output | Get recent print/warn output | | studio_get_workspace_info | Get place metadata | | studio_get_selection | Get currently selected instances |

Ollama Tools

| Tool | Description | |------|-------------| | ollama_generate | Raw prompt → completion | | ollama_generate_lua | Generate Roblox Lua for a task, optionally write to Studio | | ollama_review_script | Review a script for bugs and performance issues |

💬 Example Prompts

"List all scripts in my Roblox game"

"Read the source of game.ServerScriptService.GameManager"

"Generate a Roblox Lua leaderboard system and write it to game.ServerScriptService.Leaderboard"

"Review game.StarterPlayer.StarterCharacterScripts.Movement for performance issues"

"Create a new LocalScript called 'UIHandler' in game.StarterPlayer.StarterPlayerScripts"

🔧 Troubleshooting

Plugin shows 🔴 Disconnected

Make sure the MCP server is running (Claude Code must have it active)
Confirm HTTP requests are enabled in Studio Settings
Check that port 7842 isn't blocked by a firewall

Ollama errors

Confirm Ollama is running: curl http://localhost:11434/api/tags
Make sure minimax-m2.5:cloud is available in your Ollama setup

"Command timed out"

The plugin may have been deactivated - click the toolbar button again
Check the plugin widget for error messages

🍎 macOS - "App can't be opened" security warning

macOS may block the installer on first launch since it isn't notarized. To allow it:

Go to System Settings → Privacy & Security
Scroll down and click Open Anyway next to MCPBridge
Confirm in the dialog that appears

Alternatively, right-click the .pkg and choose Open to bypass the warning directly.

🍎 macOS - mcp-server or roblox-plugin folder not found

On first launch, MCPBridge automatically extracts these folders next to the .pkg. If auto-detection still fails, use the Browse button in the app to point to them manually. The folders will be located next to MCPBridge.pkg in the same directory.

📁 File Structure

MCPBridge/
├── mcp-server/
│   ├── index.js               ← MCP + HTTP bridge server
│   └── package.json
├── roblox-plugin/
│   └── OllamaMCP.lua          ← Studio plugin (auto-installed on Windows & macOS)
├── MCPBridge.exe              ← Windows installer (double-click to run)
├── MCPBridge.pkg              ← macOS installer (double-click to run)
├── claude_mcp_config.json     ← Example Claude Code config snippet
├── start.sh                   ← Helper startup script
└── README.md

MCP Servers