Filesys

Verified Integration

Author: @spawning•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Filesys to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "filesys-3": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesys-3"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Securely exposes file contents and metadata from a preconfigured directory, allowing LLMs to read and list files from your local machine.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Filesys

Filesys is configured using a `config/config.json` file to specify the base directory for file access. The Anthropic API key is configured using a `.env.local` file. See the installation instructions in the project's README for further details.

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