Node Code Sandbox

Node Code Sandbox is a Node.js server implementing the Model Context Protocol (MCP), enabling secure execution of arbitrary JavaScript code in isolated, ephemeral Docker containers. It supports on-the-fly npm package installation, shell command execution, file I/O, and persistent or ephemeral environments for both quick experiments and long-running services. Ideal for developers, AI agent platforms, and anyone needing managed, containerized JavaScript execution with robust sandboxing and automation.