Kilo Code Surpasses 19K Stars — Agentic Engineering Platform With 500+ Models and MCP Marketplace

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Kilo Code ships as a VS Code extension and CLI with Plan/Code/Debug modes, access to 500+ AI models including GPT-5.5, Claude Opus 4.7, and Gemini 3.1 Pro, and an MCP Server Marketplace for extending agent capabilities. At 19.5K stars, it has become the most popular open-source coding agent on OpenRouter. The evolution from Cline to Kilo reflects the shift from simple AI coding assistants to full agentic engineering platforms with mode-switching and marketplace dynamics.