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Claude-LMStudio Bridge MCP Server

@infinitimeless

Repository

Basic information

Category

AI & Agents

Transports

stdio

Author

infinitimeless

About Claude-LMStudio Bridge MCP Server

MCP server to bridge Claude with local LLMs running in LM Studio

Claude-LMStudio Bridge MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "claude-lmstudio-bridge": {
      "command": "python",
      "args": [
        "-m",
        "venv",
        "venv"
      ]
    }
  }
}

Claude-LMStudio Bridge MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Claude-LMStudio Bridge?

An MCP server that bridges Claude with local LLMs running in LM Studio. It allows Claude to list available models, generate text, perform chat completions, and verify connectivity with your local LM Studio instance.

How to use Claude-LMStudio Bridge?

Install by cloning the repository and running the setup script (setup.sh on macOS/Linux, setup.bat on Windows). The script guides you through configuring Claude Desktop with the bridge. Alternatively, manually create a virtual environment, install dependencies from requirements.txt, and configure a new MCP server in Claude Desktop with the correct command and arguments. Ensure LM Studio is running with its API server enabled (default port 1234). You can customize host, port, and debug logging via a .env file using LMSTUDIO_HOST, LMSTUDIO_PORT, and DEBUG variables.

Key features of Claude-LMStudio Bridge

  • List all available models in LM Studio
  • Generate text using your local LLMs
  • Support for chat completions through local models
  • Health check tool to verify LM Studio connectivity
  • Bridges Claude Desktop with local LLM infrastructure

Use cases of Claude-LMStudio Bridge

  • Check if your LM Studio server is running and reachable
  • List available models loaded in your local LM Studio
  • Generate text (e.g., a poem) using a local LLM
  • Send chat completion queries to your local model from Claude

Frequently asked questions

1

What are the prerequisites to use Claude-LMStudio Bridge?

You need Claude Desktop with MCP support, LM Studio installed and running locally with its API server enabled, and Python 3.8 or later.

2

What should I do if Claude cannot connect to LM Studio?

Ensure LM Studio is running, the API server is enabled (Settings > API Server), and the port in your `.env` file (default 1234) matches LM Studio’s port. Use the provided `debug_lmstudio.py` script to diagnose issues.

3

What if Claude reports that no models are loaded?

Open LM Studio, load a model, and verify it is running successfully. The bridge can only list models that are currently loaded in LM Studio.

4

How do I fix a "MCP package not found" error?

Reinstall the required packages with `pip install "mcp[cli]" httpx python-dotenv`. Make sure you are using Python 3.8 or later and that the virtual environment is active.

5

Can I change the default host and port used by the bridge?

Yes. Create a `.env` file with `LMSTUDIO_HOST` and `LMSTUDIO_PORT` set to your preferred values. The defaults are `127.0.0.1` and `1234`.

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