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Fauxnix

Fauxnix is an MCP server that runs Linux-style commands on Windows via deterministic bash→PowerShell translation. It has 902 GitHub stars, is released under the MIT license and runs locally with npx -y fauxnix-cli. It works with Claude Desktop, Claude Code, Cursor and VS Code.

github.com/20000419/fauxnix (opens in a new tab)

Data as of from the GitHub API; description from the project's repository. Report an error

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Install Fauxnix

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "fauxnix": {
      "command": "npx",
      "args": [
        "-y",
        "fauxnix-cli"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio fauxnix -- npx -y fauxnix-cli

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "fauxnix": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "fauxnix-cli"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "fauxnix": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "fauxnix-cli"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About Fauxnix

Run Linux-style commands on Windows — natively, deterministically, no VM, no WSL. fauxnix is a bash→PowerShell translation layer built for AI agents. Your agent keeps writing the bash it already knows (ls -la | grep foo, find . -name '.ts' | wc -l, kill -9 1234), and fauxnix deterministically translates each command into PowerShell, executes it natively, and hands back output that looks like GNU/Linux: ls -l columns, bash-style error messages, coreutils exit codes, UTF-8/GBK handled…

  • ai-agents
  • bash
  • claude-code
  • cli
  • codex
  • coreutils
  • mcp
  • mcp-server
  • opencode
  • powershell

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FAQ

Fauxnix FAQ

Still curious? Email info@appsgit.com.

How do I install the Fauxnix MCP server?

Add the command npx -y fauxnix-cli to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Fauxnix free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is Fauxnix actively maintained?

The most recent commit was on Oct 24, 2026. The latest release is v2.1.1, published Oct 22, 2026. appsgit only lists MCP servers with a commit in the last six months.