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Lm

Lm is an MCP server that connects Claude to any OpenAI-compatible LLM endpoint and offload routine work to a local model. It has 121 GitHub stars, is released under the Apache-2.0 license and runs locally with npx -y @houtini/lm. It works with Claude Desktop, Claude Code, Cursor and VS Code and needs an API key.

github.com/houtini-ai/houtini-lm (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install Lm

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "lm": {
      "command": "npx",
      "args": [
        "-y",
        "@houtini/lm"
      ],
      "env": {
        "HOUTINI_LM_API_KEY": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env HOUTINI_LM_API_KEY=your-value --transport stdio lm -- npx -y @houtini/lm

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "lm": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@houtini/lm"
      ],
      "env": {
        "HOUTINI_LM_API_KEY": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "houtini_lm_api_key",
      "description": "HOUTINI_LM_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "lm": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@houtini/lm"
      ],
      "env": {
        "HOUTINI_LM_API_KEY": "${input:houtini_lm_api_key}"
      }
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
HOUTINI_LM_ENDPOINT_URLNoBase URL of the OpenAI-compatible API endpoint (e.g. http://localhost:1234, https://openrouter.ai/api). Legacy alias: LMSTUDIOURL.
HOUTINI_LM_API_KEYsecretNoBearer token for API authentication (no auth if blank). Legacy aliases: LMSTUDIOPASSWORD, LMPASSWORD, OPENROUTERAPI_KEY.
HOUTINI_LM_MODELNoModel identifier to use for requests (auto-detected if not set). Legacy alias: LMSTUDIOMODEL.
HOUTINI_LM_PROVIDERNoOptional provider override: 'openrouter' forces OpenRouter-specific handling (attribution headers, reasoning.exclude, no inference serialisation)…

About Lm

Houtini LM is an MCP server that lets Claude (or any MCP client) hand bounded work to another model - a local LLM on your GPU, OpenAI's latest GPT models, a LiteLLM router, OpenRouter or a cheap cloud API - while you carry on working in the AI platform you already like. It cuts your token bill, and it gives you a second model to review your code whenever you want one.

  • ai-agents
  • claude-mcp
  • code-generation
  • developer-tool
  • developer-tools
  • lm-studio
  • local-llm
  • mcp
  • mcp-client
  • mcp-server

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FAQ

Lm FAQ

Still curious? Email info@appsgit.com.

How do I install the Lm MCP server?

Add the command npx -y @houtini/lm to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Lm free?

The server is open source under the Apache-2.0 license, so running it is free. It needs credentials (HOUTINI_LM_API_KEY) for the service it connects to, which may require a paid account.

Is Lm actively maintained?

The most recent commit was on Oct 25, 2026. The latest release is v2.8.0, published Mar 18, 2026. appsgit only lists MCP servers with a commit in the last six months.