Shell MCP Server

What is Shell MCP Server?

A Model Context Protocol server that provides shell command execution capabilities. It enables LLMs to execute shell commands and receive their output in a controlled manner.

How to use Shell MCP Server?

Install via uvx mcp-server-shell or pip install mcp-server-shell, then configure the server in your MCP client (e.g., Claude.app or Zed) by adding the appropriate JSON entry. Use the execute_command tool with a command string argument to run any shell command.

Key features of Shell MCP Server

• Executes shell commands and returns combined stdout/stderr output.
• Returns the command’s exit code for success/failure detection.
• Supports installation via uv (uvx) or pip.
• Ready‑made configurations for Claude.app and Zed.
• Can be debugged using the MCP inspector.
• Licensed under the MIT License.

Use cases of Shell MCP Server

• “List files in the current directory.”
• “Show the contents of a specific file (e.g., README.md).”
• “Check the current system date.”
• “Verify if Python is installed and its version.”

FAQ from Shell MCP Server

What does the Shell MCP Server do?

It gives LLMs the ability to run arbitrary shell commands and receive their output (stdout, stderr) and exit code in real time.

How do I install the Shell MCP Server?

You can run it directly with uvx mcp-server-shell (no install needed) or install it via pip install mcp-server-shell and then execute python -m mcp_server_shell.

How do I configure the server for Claude.app?

Add a JSON entry to your Claude settings under mcpServers – either using uvx or python as the command, with the appropriate arguments.

Are there security risks?

Yes. The server executes shell commands directly on your system. Use with caution and implement appropriate security measures to prevent unauthorized or dangerous command execution.

How can I debug the server?

Use the MCP inspector tool: run npx @modelcontextprotocol/inspector uvx mcp-server-shell (or a similar command for pip installations).