Node Code Sandbox

Node Code Sandbox is a Node.js server implementing the Model Context Protocol (MCP) to enable running arbitrary JavaScript code inside isolated Docker containers with ephemeral, reproducible environments. It supports on-the-fly npm dependency installation, execution of ES module JavaScript, and shell command automation. Aimed at developers, power users, and AI workflows, it enables secure, clean, and controlled JS code evaluation at runtime, suitable for quick experiments, automation, or tool integration—such as connecting with Claude Desktop, VS Code, or other MCP-compatible clients.