Prerequisites
Python 3.11+
Check version: python --version
Node.js 18+
Check version: node --version
Installation
Clone the Repository
git clone https://github.com/JarrodAI/pylance-mcp.git
cd pylance-mcp
Install Dependencies
# Python dependencies
pip install -r requirements.txt
# Node.js dependencies (Pyright)
npm install
Test the Installation
# Run all tests
pytest tests/ -v
# Run the demo
python demo.py
Cursor
Claude Desktop
Continue.dev
Windsurf
Add to .cursor/config.json:{
"mcpServers": {
"pylance-mcp-pro": {
"command": "python",
"args": ["/absolute/path/to/server.py"],
"env": {
"WORKSPACE_ROOT": "/path/to/your/python/project"
}
}
}
}
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):{
"mcpServers": {
"pylance-mcp-pro": {
"command": "python",
"args": ["C:\\path\\to\\server.py"],
"env": {
"WORKSPACE_ROOT": "C:\\path\\to\\your\\python\\project"
}
}
}
}
Add to .continue/config.json:{
"mcpServers": {
"pylance-mcp-pro": {
"command": "python",
"args": ["./server.py"],
"env": {
"WORKSPACE_ROOT": "${workspaceFolder}"
}
}
}
}
Add to Windsurf MCP settings:{
"pylance-mcp-pro": {
"command": "python",
"args": ["server.py"],
"env": {
"WORKSPACE_ROOT": "/path/to/project"
}
}
}
Verify Connection
Restart Your AI Client
Close and reopen your AI assistant to load the new MCP configuration.
Test a Simple Prompt
Try asking your AI:
“Use Pylance MCP to show me type information for the main function in src/app.py”
Your AI should use the get_hover tool to retrieve type signatures. Verify Health Check
Ask your AI:
“Run a health check on the Pylance MCP server”
You should see server status, version, and workspace information. Example Prompts to Try
Get Completions
“Show me code completions available at line 42 in models.py”
Refactor Code
“Rename the User class to UserAccount across the entire workspace”
Find References
“Find all references to the calculate_total function”
Type Checking
“Show me all type errors in the src/ directory”
Next Steps
Pro Tip: Start with the free plan to explore features. Upgrade to Professional when you need higher request limits and priority support.
