Claude-LMStudio-Bridge

A simple Model Control Protocol (MCP) server that allows Claude to communicate with locally running LLM models via LM Studio.

Overview

This bridge enables Claude to send prompts to locally running models in LM Studio and receive their responses. This can be useful for:

• Comparing Claude's responses with other models

• Accessing specialized local models for specific tasks

• Running queries even when you have limited Claude API quota

• Keeping sensitive queries entirely local

Related MCP server: LMStudio-MCP

Prerequisites

• Python 3.8+

• Anthropic Claude with MCP capability

• LM Studio running locally

• Local LLM model(s) loaded in LM Studio

Installation

1. Clone this repository:

   git clone https://github.com/infinitimeless/Claude-LMStudio-Bridge_V2.git
   cd Claude-LMStudio-Bridge_V2

2. Create a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate

3. Install the required packages (choose one method):

   Using requirements.txt:

   pip install -r requirements.txt

   Or directly install dependencies:

   pip install requests "mcp[cli]" openai anthropic-mcp

Usage

1. Start LM Studio and load your preferred model.

2. Ensure LM Studio's local server is running (usually on port 1234 by default).

3. Run the bridge server:

   python lmstudio_bridge.py

4. In Claude's interface, enable the MCP server and point it to your locally running bridge.

5. You can now use the following MCP tools in your conversation with Claude:

   • health_check: Check if LM Studio API is accessible

   • list_models: Get a list of available models in LM Studio

   • get_current_model: Check which model is currently loaded

   • chat_completion: Send a prompt to the current model

Example

Once connected, you can ask Claude to use the local model:

Claude, please use the LM Studio bridge to ask the local model: "What's your opinion on quantum computing?"

Claude will use the chat_completion tool to send the query to your local model and display the response.

Configuration

By default, the bridge connects to LM Studio at http://localhost:1234/v1. If your LM Studio instance is running on a different port, modify the LMSTUDIO_API_BASE variable in lmstudio_bridge.py.

Troubleshooting

If you encounter issues with dependencies, try installing them directly:

pip install requests "mcp[cli]" openai anthropic-mcp

For detailed installation instructions and troubleshooting, see the Installation Guide.

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.