> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pylancemcp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Model Context Protocol

> Understanding the MCP protocol and how it enables AI-code integration

## What is MCP?

The Model Context Protocol (MCP) is the bridge that lets your AI assistant understand and work with your Python code intelligently.

### What You Can Do

<AccordionGroup>
  <Accordion title="Get Smart Completions">
    Your AI suggests code based on your project's actual types and imports
  </Accordion>

  <Accordion title="Explore Your Code">
    Ask about functions, classes, and see your project structure instantly
  </Accordion>

  <Accordion title="Navigate Quickly">
    Jump to definitions, find references, and understand code relationships
  </Accordion>

  <Accordion title="Fix Errors Faster">
    Get real-time diagnostics and explanations for errors
  </Accordion>
</AccordionGroup>

## Features Available to You

### Code Intelligence Tools

Pylance MCP provides 15+ powerful features:

<CardGroup cols={3}>
  <Card title="get_completions" icon="list">
    Code completion suggestions
  </Card>

  <Card title="get_hover" icon="info-circle">
    Hover documentation
  </Card>

  <Card title="get_definition" icon="location-dot">
    Go to definition
  </Card>

  <Card title="get_references" icon="link">
    Find all references
  </Card>

  <Card title="rename_symbol" icon="pen">
    Rename refactoring
  </Card>

  <Card title="get_diagnostics" icon="triangle-exclamation">
    Errors and warnings
  </Card>

  <Card title="format_document" icon="align-left">
    Code formatting
  </Card>

  <Card title="get_signature_help" icon="question">
    Function signatures
  </Card>

  <Card title="get_code_actions" icon="bolt">
    Quick fixes
  </Card>
</CardGroup>

### What Information You Get

When you use Pylance MCP, you get rich, detailed information automatically:

<AccordionGroup>
  <Accordion title="Your Workspace Context">
    Pylance understands your project structure, Python version, and virtual environment
  </Accordion>

  <Accordion title="Type Information">
    See function signatures, parameter types, and return values
  </Accordion>

  <Accordion title="Live Updates">
    Changes in your code are detected and suggestions update instantly
  </Accordion>
</AccordionGroup>

## Tips for Best Results

<Check>
  Work naturally - your IDE and AI handle the technical details
</Check>

<Check>
  Results are cached automatically for instant repeated access
</Check>

<Check>
  The system prevents excessive requests to protect your account
</Check>

### If Something Goes Wrong

| Issue              | What It Means            | What To Do                          |
| ------------------ | ------------------------ | ----------------------------------- |
| File not found     | Workspace path incorrect | Check your IDE workspace settings   |
| Invalid request    | Configuration issue      | Review the setup guide for your IDE |
| Rate limit reached | Too many requests        | Wait a moment, then try again       |
| Internal error     | Temporary service issue  | Retry in a few seconds              |

<Info>
  Most issues resolve by restarting your IDE or checking your configuration.
</Info>

## Next Steps

<CardGroup cols={2}>
  <Card title="Tool Reference" icon="wrench" href="/api-reference/tools/get-completions">
    Explore all available tools
  </Card>

  <Card title="Setup Guide" icon="rocket" href="/guides/cursor-setup">
    Configure your editor
  </Card>
</CardGroup>