Filesystem MCP Server

MCP Filesystem Server

This MCP server provides secure access to the local filesystem via the Model Context Protocol (MCP).

Components

Tools

File Operations

read_file
- Read the complete contents of a file from the file system
- Parameters: path (required): Path to the file to read
read_multiple_files
- Read the contents of multiple files in a single operation
- Parameters: paths (required): List of file paths to read
write_file
- Create a new file or overwrite an existing file with new content
- Parameters: path (required): Path where to write the file, content (required): Content to write to the file
copy_file
- Copy files and directories
- Parameters: source (required): Source path of the file or directory, destination (required): Destination path
move_file
- Move or rename files and directories
- Parameters: source (required): Source path of the file or directory, destination (required): Destination path
delete_file
- Delete a file or directory from the file system
- Parameters: path (required): Path to the file or directory to delete, recursive (optional): Whether to recursively delete directories (default: false)

Directory Operations

list_directory
- Get a detailed listing of all files and directories in a specified path
- Parameters: path (required): Path of the directory to list
create_directory
- Create a new directory or ensure a directory exists
- Parameters: path (required): Path of the directory to create
tree
- Returns a hierarchical JSON representation of a directory structure
- Parameters: path (required): Path of the directory to traverse, depth (optional): Maximum depth to traverse (default: 3), follow_symlinks (optional): Whether to follow symbolic links (default: false)

Search and Information

search_files
- Recursively search for files and directories matching a pattern
- Parameters: path (required): Starting path for the search, pattern (required): Search pattern to match against file names
get_file_info
- Retrieve detailed metadata about a file or directory
- Parameters: path (required): Path to the file or directory
list_allowed_directories
- Returns the list of directories that this server is allowed to access
- Parameters: None

Features

Secure access to specified directories
Path validation to prevent directory traversal attacks
Symlink resolution with security checks
MIME type detection
Support for text, binary, and image files
Size limits for inline content and base64 encoding

Getting Started

Installation

Using Go Install

go install github.com/mark3labs/mcp-filesystem-server@latest

Usage

As a standalone server

Start the MCP server with allowed directories:

mcp-filesystem-server /path/to/allowed/directory [/another/allowed/directory ...]

As a library in your Go project

package main

import (
	"log"
	"os"

	"github.com/mark3labs/mcp-filesystem-server/filesystemserver"
)

func main() {
	// Create a new filesystem server with allowed directories
	allowedDirs := []string{"/path/to/allowed/directory", "/another/allowed/directory"}
	fs, err := filesystemserver.NewFilesystemServer(allowedDirs)
	if err != nil {
		log.Fatalf("Failed to create server: %v", err)
	}

	// Serve requests
	if err := fs.Serve(); err != nil {
		log.Fatalf("Server error: %v", err)
	}
}

Usage with Model Context Protocol

To integrate this server with apps that support MCP:

{
  "mcpServers": {
    "filesystem": {
      "command": "mcp-filesystem-server",
      "args": ["/path/to/allowed/directory", "/another/allowed/directory"]
    }
  }
}

Docker

Running with Docker

You can run the Filesystem MCP server using Docker:

docker run -i --rm ghcr.io/mark3labs/mcp-filesystem-server:latest /path/to/allowed/directory

Docker Configuration with MCP

To integrate the Docker image with apps that support MCP:

{
  "mcpServers": {
    "filesystem": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/mark3labs/mcp-filesystem-server:latest",
        "/path/to/allowed/directory"
      ]
    }
  }
}

License

See the LICENSE file for details.

This server cannot be installed

security - not tested

license - permissive license

quality - not tested

local-only server

The server can only run on the client's local machine because it depends on local resources.

Go server implementing Model Context Protocol (MCP) for filesystem operations.

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