MCP-Server Offiziell

Filesystem MCP Server

Reference MCP server for reading, writing, searching and moving files inside directories you explicitly allow.

Autor: Model Context Protocol
Funktioniert mit: Any MCP client
Lizenz: MIT
Dokumentiert: Oct 2, 2026

Was Filesystem MCP Server ist

Node.js server implementing MCP for filesystem operations, published on npm as @modelcontextprotocol/server-filesystem. Access is limited to allowed directories given as command-line arguments or via MCP Roots.

Was es kann

Wo Filesystem MCP Server läuft und was es ergänzt, laut Dokumentation

Read text files (with head/tail options) and media files
Read multiple files at once
Write and overwrite files
Create, list and delete directories and move files or directories
Search files and get file metadata
Update allowed directories at runtime through MCP Roots

Wann Sie es einsetzen sollten

Gut geeignet

Letting an agent work on a few specific project folders
Clients that support Roots and need runtime directory changes

Nicht geeignet für

Anything needing access outside the allowed directories
Production use without your own review: The root README says these are reference implementations meant as educational examples, not production-ready solutions.

So installieren Sie Filesystem MCP Server

Sie benötigen: Node.js (npx); At least one allowed directory via arguments or Roots, otherwise it errors on start

Make sure Node.js and npx are available
Add the server to your MCP client config with the npx command
Pass at least one allowed directory as an argument, or use a client that supports Roots
Restart the client and call list_allowed_directories to confirm

Konfigurationsbeispiel (aus der offiziellen Dokumentation)

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/path/to/dir1",
        "/path/to/dir2"
      ]
    }
  }
}

Berechtigungen und Sicherheit

Worauf es zugreifen kann

Read and write files and directories inside allowed directories only

Sicherheitshinweise der Maintainer

write_file overwrites existing files; README says to exercise caution
The root README says these are reference implementations meant as educational examples, not production-ready solutions.

Prüfen Sie den Quellcode, bevor Sie einem Agenten Zugriff auf Zugangsdaten oder Produktivsysteme geben. Wir dokumentieren die Angaben der Maintainer; Code prüfen wir nicht.

Einschränkungen

Server errors on startup if no args are given and the client does not support Roots
Roots from the client completely replace command-line directories

Häufig gestellte Fragen

What does the Filesystem MCP server need to start?

At least one allowed directory, passed as an argument or supplied by the client through Roots. Quelle

Can the Filesystem MCP server access files outside the allowed directories?

No. The README says all operations are restricted to allowed directories. Quelle

What is the npm package for the Filesystem MCP server?

@modelcontextprotocol/server-filesystem. Quelle

Quellen und Lücken

https://raw.githubusercontent.com/modelcontextprotocol/servers/main/src/filesystem/README.md readme, geprüft Oct 2, 2026
https://raw.githubusercontent.com/modelcontextprotocol/servers/main/README.md readme, geprüft Oct 2, 2026

Von den Maintainern nicht angegeben: Hosts other than generic MCP clients are not individually named as supported for Claude Code/Cursor/Windsurf/Codex in this README; last_release date not visible in the checked README.