Kilo Code is an open-source AI agent extension for Visual Studio Code that enhances coding efficiency through code generation, task automation, and intelligent suggestions. It integrates with VS Code’s interface, offering a chat-based system powered by models like Claude 3.7 Sonnet and Gemini 2.5 Pro. It builds on features from Roo and Cline, adding unique tools like the MCP Server Marketplace. The extension is free with a $20 credit for AI model usage, with additional tokens available at Anthropic’s API rates.
Key features include Code Generation, which creates code from natural language prompts, and Task Automation, which handles repetitive tasks like dependency updates. The Orchestrator mode divides complex projects into subtasks, using specialized modes like Architect, Coder, and Debugger. The MCP Server Marketplace allows integration with external APIs and custom tools, while Custom Modes let users create task-specific personas. It supports over 15,000 libraries for precise suggestions.
Compared to Cursor and Windsurf, Kilo Code’s open-source model and free tier stand out, but it lacks the full-IDE polish of Cursor. Setup is simple via the VS Code Marketplace, though web-based IDEs may require manual API key configuration. Some users report latency issues with large projects, and the learning curve for advanced features can be steep.
The extension excels for developers seeking flexibility and community-driven updates. Its ability to read non-code files like PDFs is a unique advantage. Active GitHub and Discord communities provide support and feedback opportunities.
To get started, install the extension, sign in with Google for free credits, and use the chat interface for simple tasks. Experiment with Orchestrator mode for larger projects, and join the Discord for community insights.