js-sandbox-mcp-server
Secure JavaScript execution environment via MCP. js-sandbox-mcp-server is a Model Context Protocol (MCP) server maintained by garc33. It connects to MCP-compatible clients such as Claude Desktop, Cursor, Cline, and other agents that speak the protocol. It exposes 1 tool, including execute_js, that an agent can call directly. It is categorized under Tool/Server and Development/JavaScript.
What is this MCP
This is a Model Context Protocol server that provides a secure sandbox for executing JavaScript code in an isolated environment with configurable resource limits.
How to use this MCP
Configure the server in Claude Desktop by adding it to theclaude_desktop_config.json file, then call the execute_js method with your JavaScript code and optional timeout/memory parameters.
What this MCP can be used for
This MCP enables safe execution of untrusted JavaScript code for AI-assisted development, code testing, or any application requiring isolated JS execution with controlled resource constraints.
AIMCP authority
DR and traffic signal for the AIMCP public domain.
Frequently asked questions
What is the js-sandbox-mcp-server MCP server?
js-sandbox-mcp-server is a Model Context Protocol server from garc33. It lets MCP-compatible AI clients call its tools over a standard interface, so agents like Claude, Cursor, and Cline can use it without custom integration.
How do I connect js-sandbox-mcp-server to my AI client?
Add js-sandbox-mcp-server to your client's MCP configuration using the stdio or SSE connection shown in the usage examples on this page, then restart the client to load the server.
What tools does js-sandbox-mcp-server provide?
js-sandbox-mcp-server provides 1 tool: execute_js.
Is js-sandbox-mcp-server free to use?
js-sandbox-mcp-server is listed on AIMCP for free. Any API keys or accounts required by the underlying service are set by its provider.
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