Legifrance

The server proxies Legifrance through the Dassignies Lab API. Go to lab.dassignies.law, create an account, and copy your API key. The default API URL is https://lab.dassignies.law/api/ and does not need to be changed unless you host your own instance.

Install the MCP server directly from the GitHub repository using pip or uv. It is recommended to use a virtual environment to isolate dependencies.

python -m venv .venv
source .venv/bin/activate
pip install git+https://github.com/pylegifrance/mcp-server-legifrance.git

Export your API credentials before running the server. You can place these in a .env file or set them in your shell profile.

export DASSIGNIES_API_KEY=your_api_key_here
export DASSIGNIES_API_URL=https://lab.dassignies.law/api/

Find the full path to the server.py entry point inside your virtual environment so you can reference it in your MCP client configuration.

find .venv -name 'server.py' | grep legifrance

Add the server to your Claude Desktop configuration file at ~/Library/Application Support/Claude/claude_desktop_config.json, using the virtual environment's Python interpreter and the full path to server.py.

{
  "mcpServers": {
    "legifrance": {
      "command": "/path/to/.venv/bin/python",
      "args": ["/path/to/mcp-server-legifrance/src/server.py"],
      "env": {
        "DASSIGNIES_API_KEY": "your_api_key_here",
        "DASSIGNIES_API_URL": "https://lab.dassignies.law/api/"
      }
    }
  }
}

Fully quit and reopen Claude Desktop. Try a French legal query to confirm the server responds with sourced legal content.