Safe file access inside the folders you allow.

What it can do

• list_files — shows files and folders under an allowlisted root, with optional recursion and entry limits.
• read_file — reads a file from an allowlisted root as text or base64.
• write_file — writes a file inside an allowlisted root, with options to create folders or block overwrites.

Setup

Set FILESYSTEM_ROOTS to one or more absolute folder paths, separated with ;. Example: C:\Users\you\Documents;C:\Users\you\Projects You do not get this from a service. You pick the folders on your own machine. Helpful docs for path format:

• Windows absolute path guide

Claude Desktop config

Add this to your Claude Desktop MCP config:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@universal-mcp-toolkit/server-filesystem@latest"],
      "env": {
        "FILESYSTEM_ROOTS": "C:\\Users\\you\\Documents;C:\\Users\\you\\Projects"
      }
    }
  }
}

Cursor config

Put this in .cursor/mcp.json:

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@universal-mcp-toolkit/server-filesystem@latest"],
      "env": {
        "FILESYSTEM_ROOTS": "C:\\Users\\you\\Documents;C:\\Users\\you\\Projects"
      }
    }
  }
}

Quick example

"Look in my allowlisted Projects\\api folder, list the top-level files, read package.json, and create notes\\release-checklist.txt with a short launch checklist."