Fathom

Verified Integration

Author: @ugrep•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Fathom to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "fathom-3": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-fathom-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

Provide AI assistants with secure, file-first access to local document collections through advanced search and hierarchical organization.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Fathom

Fathom organizes documents using a hierarchical, collection-based system that mirrors your filesystem structure. It offers advanced full-text search capabilities, including boolean operators, exact phrase matching, and fuzzy matching, powered by ugrep for direct file access.

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