MCP Filesystem Server

MIT License
29
7
  • Linux
  • Apple

Integrations

  • Provides containerized deployment of the MCP server, with support for mounting host directories as read-only or read-write volumes, allowing secure file operations from within Docker containers.

:bookmark: About

MCP Filesystem Server provides secure filesystem access for AI models through the Model Context Protocol. It enforces strict path validation and only allows access to predefined directories.

:computer: Technologies

:wrench: Tools

:package: Installation

:heavy_check_mark: Prerequisites

The following software must be installed:

:arrow_down: Cloning the repository

$ git clone https://github.com/gabrielmaialva33/mcp-filesystem.git $ cd mcp-filesystem

:arrow_forward: Running the application

Local Development
# Install dependencies $ pnpm install # Build the application $ pnpm build # Run the server (specify directory to allow access to) $ pnpm start /path/to/allowed/directory # Or use configuration file $ pnpm start --config=config.json
Using NPM Package
# Install globally $ npm install -g @gabrielmaialva33/mcp-filesystem # Run the server $ mcp-filesystem /path/to/allowed/directory # Or use with npx (no installation needed) $ npx @gabrielmaialva33/mcp-filesystem /path/to/allowed/directory # Create a sample configuration file $ npx @gabrielmaialva33/mcp-filesystem --create-config=config.json
Using Docker
# Build the Docker image $ docker build -t gabrielmaialva33/mcp-filesystem . # Run using Docker $ docker run -i --rm -v /path/to/data:/data:ro gabrielmaialva33/mcp-filesystem /data # Use with config file $ docker run -i --rm -v /path/to/config.json:/app/config.json -v /path/to/data:/data gabrielmaialva33/mcp-filesystem --config=/app/config.json
Using Docker Compose
# Create a data directory $ mkdir -p data # Start the server $ docker-compose up -d

:gear: Usage

Using with Claude Desktop

Claude Desktop can be configured to use this MCP server for filesystem access. Add the following to your claude_desktop_config.json:

{ "mcpServers": { "filesystem": { "command": "mcp-filesystem", "args": [ "/Users/gabrielmaia/Documents", "/Users/gabrielmaia/Desktop", "/Users/gabrielmaia/Downloads" ] } } }

Make sure to make the executable available globally:

# Make the binary executable chmod +x /Users/gabrielmaia/.nvm/versions/node/v22.14.0/bin/mcp-filesystem
Using NPX
{ "mcpServers": { "filesystem": { "command": "npx", "args": [ "-y", "@gabrielmaialva33/mcp-filesystem", "/Users/username/Desktop", "/path/to/other/allowed/dir" ] } } }
Using Docker

Note: When using Docker, all directories must be mounted to /projects by default. Adding the ro flag will make the directory read-only.

{ "mcpServers": { "filesystem": { "command": "docker", "args": [ "run", "-i", "--rm", "--mount", "type=bind,src=/Users/username/Desktop,dst=/projects/Desktop", "--mount", "type=bind,src=/path/to/other/allowed/dir,dst=/projects/other/allowed/dir,ro", "--mount", "type=bind,src=/path/to/file.txt,dst=/projects/path/to/file.txt", "gabrielmaialva33/mcp-filesystem", "/projects" ] } } }

Available Tools

The MCP Filesystem Server provides these tools:

File System Operations
  • read_file: Read a file's content
  • read_multiple_files: Read multiple files at once
  • write_file: Create or overwrite a file
  • edit_file: Make precise edits with diff preview
  • create_directory: Create directories recursively
  • list_directory: List directory contents
  • directory_tree: Get a recursive tree view
  • move_file: Move or rename files
  • search_files: Find files matching patterns
  • get_file_info: Get file metadata
  • list_allowed_directories: See accessible directories
System & Network Operations
  • get_metrics: View server performance metrics (v0.3.0+)
  • execute_command: Execute system commands securely (v0.3.1+)
  • curl_request: Execute HTTP requests to external APIs (coming in v1.2.0)
Using curl_request Tool (Coming in v1.2.0)

The curl_request tool will allow you to make HTTP requests to external APIs:

// Example: Making a GET request with authentication curl_request({ url: 'https://api.example.com/data', method: 'GET', headers: { Authorization: 'Bearer your_token_here', }, }) // Example: POST request with JSON data curl_request({ url: 'https://api.example.com/create', method: 'POST', headers: { 'Content-Type': 'application/json', }, data: '{"name":"Example","value":123}', })

See the docs/curl-tool-examples.md file for more detailed examples.

:sparkles: Features

Core Features

  • Secure Access: Strict path validation prevents unauthorized access
  • File Operations: Read, write, edit, and move files
  • Directory Operations: Create, list, get tree views, and search directories
  • Metadata Access: View file and directory information
  • Command Execution: Securely execute system commands with strict validation
  • Docker Support: Easy deployment with Docker and Docker Compose

New Features in v0.3.0

  • Structured Logging: Detailed logging with different levels (debug, info, warn, error)
  • Performance Metrics: Track operation counts, errors, and execution times
  • Configuration Management: Support for JSON configuration files
  • Path Caching: Improved performance for frequently accessed paths
  • Improved Error Handling: Specialized error types with structured information
  • File Size Validation: Prevent loading excessively large files
  • CLI Improvements: Help command, version info, and config generation

Configuration Options

You can create a configuration file using:

$ mcp-filesystem --create-config=config.json

Example configuration:

{ "allowedDirectories": ["/path/to/allowed/dir1", "/path/to/allowed/dir2"], "logLevel": "info", "logFile": "/path/to/logs/mcp-filesystem.log", "serverName": "secure-filesystem-server", "serverVersion": "0.3.0", "cache": { "enabled": true, "maxSize": 1000, "ttlMs": 60000 }, "metrics": { "enabled": true, "reportIntervalMs": 60000 }, "security": { "maxFileSize": 10485760, "allowSymlinks": true, "validateRealPath": true } }

:writing_hand: Author

Gabriel Maia

License

MIT License

-
security - not tested
A
license - permissive license
-
quality - not tested

A secure Model Context Protocol server that provides controlled filesystem access within predefined directories, enabling AI models to perform file and directory operations with strict path validation.

  1. :computer: Technologies
    1. :wrench: Tools
      1. :package: Installation
        1. :heavy_check_mark: Prerequisites
        2. :arrow_down: Cloning the repository
        3. :arrow_forward: Running the application
      2. :gear: Usage
        1. Using with Claude Desktop
        2. Available Tools
      3. :sparkles: Features
        1. Core Features
        2. New Features in v0.3.0
        3. Configuration Options
        4. :writing_hand: Author
      4. License

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