alfonsograziano/node-code-sandbox-mcp

3.5

If you are the rightful owner of node-code-sandbox-mcp and would like to certify it and/or have it hosted online, please leave a comment on the right or send an email to henry@mcphub.com.

Node.js Sandbox MCP Server allows running JavaScript in isolated Docker containers with dynamic npm dependency management.

Tools

Functions exposed to the LLM to take actions

run_js_ephemeral

Run JavaScript scripts in a one-time container that support dynamic installation of dependencies and capture output

sandbox_initialize

Start a new sandbox container

sandbox_exec

Execute shell commands in a running sandbox container

run_js

Install npm dependencies in a sandbox container and execute JavaScript code

sandbox_stop

Terminate and remove the sandbox container

Prompts

Interactive templates invoked by user choice

No prompts

Resources

Contextual data attached and managed by the client

No resources

Author

alfonsograziano

Claim Ownership

Verify you have write access to the repository

Version

v1.3.0

Repository

https://github.com/alfonsograziano/node-code-sandbox-mcp

GitHub Stars

Last publish date

2025-07-06

Last update date

2025-08-19

Server configs

in claude desktop

{
  "mcpServers": {
    "js-sandbox": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-v",
        "/var/run/docker.sock:/var/run/docker.sock",
        "-v",
        "$HOME/Desktop/sandbox-output:/root",
        "-e",
        "FILES_DIR=$HOME/Desktop/sandbox-output",
        "-e",
        "SANDBOX_MEMORY_LIMIT=512m",
        "-e",
        "SANDBOX_CPU_LIMIT=0.75",
        "mcp/node-code-sandbox"
      ]
    }
  }
}

via npx in claude desktop

{
  "mcpServers": {
    "node-code-sandbox-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "node-code-sandbox-mcp"],
      "env": {
        "FILES_DIR": "/Users/alfonsograziano/Desktop/node-sandbox",
        "SANDBOX_MEMORY_LIMIT": "512m",
        "SANDBOX_CPU_LIMIT": "0.75"
      }
    }
  }
}

in vs code

"mcp": {
    "servers": {
        "js-sandbox": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "-v", "/var/run/docker.sock:/var/run/docker.sock",
                "-v", "$HOME/Desktop/sandbox-output:/root",
                "-e", "FILES_DIR=$HOME/Desktop/sandbox-output",
                "-e", "SANDBOX_MEMORY_LIMIT=512m",
                "-e", "SANDBOX_CPU_LIMIT=1",
                "mcp/node-code-sandbox"
              ]
        }
    }
}

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alfonsograziano/node-code-sandbox-mcp

Tools

run_js_ephemeral

sandbox_initialize

sandbox_exec

run_js

sandbox_stop

Prompts

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Resources

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