Documentation — LEGION Coder

Getting Started

Installation, setup, and your first project in under 5 minutes.

AI Features

Learn how to use AI chat, code completion, and smart suggestions.

Editor Guide

Master the Monaco editor with shortcuts, settings, and tips.

Terminal

Integrated terminal usage, shell configuration, and commands.

Git Integration

Version control workflows, branching, and collaboration tools.

Debugger

Set breakpoints, inspect variables, and step through code.

Getting Started

LEGION Coder is designed to get you coding immediately. Download the installer for your platform, run it, and you're ready to go. No complex setup required.

Once installed, you can create a new file with Ctrl+N, open a folder with Ctrl+O, or clone a Git repository with Ctrl+Shift+G.

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Quick Start

                            
                            # Install on macOS
                        
                            brew install --cask legion-coder
                        
                            # Or download directly
                        
                            curl -fsSL https://legion.dev/install | sh

AI Features

LEGION Coder integrates with OpenRouter to provide access to 15+ AI models including GPT-4o, Claude, Llama, and Mistral — all for free.

Press Ctrl+Shift+A to open the AI chat panel. You can ask questions about your code, get explanations, generate code snippets, or debug issues.

Natural language code generation
Intelligent code completion
Bug detection and fixes
Code explanation and documentation

AI Chat

                            
                            // Ask the AI to explain code
                        
                            "What does this function do?"
                        
                            // Generate code from description
                        
                            "Create a React hook for fetching data"

Editor Guide

Powered by Monaco Editor (the same engine as VS Code), LEGION Coder provides a world-class editing experience with IntelliSense, refactoring, and more.

Customize your experience through the settings panel (Ctrl+,). Change themes, keybindings, font sizes, and editor behavior to match your preferences.

View Full Editor Docs

settings.json

                            
                            {
                        
                              "editor.theme": "dark",
                        
                              "editor.fontSize": 14,
                        
                              "editor.tabSize": 2,
                        
                              "ai.model": "gpt-4o"
                        
                            }

Frequently Asked Questions

Is LEGION Coder really free?

Yes! LEGION Coder is completely free and open source under the MIT License. All AI features are free through OpenRouter's API.

What platforms are supported?

Currently Windows and Android are fully supported. macOS and Linux builds are in development and coming soon.

Can I use my own API keys?

Absolutely! While we provide free access through OpenRouter, you can configure your own API keys for OpenAI, Anthropic, or other providers in settings.

How do I report bugs or request features?

Please use our GitHub Issues page to report bugs or request new features.