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Shell Command

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Secure shell command execution server that allows running system commands in a controlled environment through an allowlist system, returning results in YAML for

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About

Secure shell command execution server that allows running system commands in a controlled environment through an allowlist system, returning results in YAML format.

README

MCP server for executing shell commands.

This project is sponsored by ChatWise, an all-in-one LLM chatbot with first-class MCP support.

Usage

Configure manually

# stdio server
npx -y shell-command-mcp

JSON config

{
  "mcpServers": {
    "shell-command": {
      "command": "npx",
      "args": ["-y", "shell-command-mcp"],
      "env": {
        "ALLOWED_COMMANDS": "cat,ls,echo"
      }
    }
  }
}

Allowed commands

Use ALLOWED_COMMANDS environment variable to explictly allow the commands that this server can run, separate each command by ,. You can use * to allow any command, but this is potentially dangerous.

License

MIT.

from github.com/egoist/shell-command-mcp

Installing Shell Command

This server has no published package — it is built from source. Open the repository and follow its README.

▸ github.com/egoist/shell-command-mcp

FAQ

Is Shell Command MCP free?

Yes, Shell Command MCP is free — one-click install via Unyly at no cost.

Does Shell Command need an API key?

No, Shell Command runs without API keys or environment variables.

Is Shell Command hosted or self-hosted?

Self-hosted: the server runs locally on your machine via the install command above.

How do I install Shell Command in Claude Desktop, Claude Code or Cursor?

Open Shell Command on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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