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fathom-connect

v1.2.2

Published

Connect Claude Code, Claude Desktop, or Cursor to your Fathom memory lake

Vulnerabilities

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Links

Git

Maintainers

myrakrusemarkmyrakrusemark

Keywords

fathommcpmemoryclaudehooks

Readme

fathom-connect

One command to connect Claude Code, Claude Desktop, or Cursor to your Fathom memory lake.

Requires Node.js 18 or newer. Install Node first if you don't have it — npx ships with Node.

npx fathom-connect

You'll be asked where you're connecting, your Fathom API URL (defaults to http://localhost:8201), and an API key. The wizard tests the connection, writes the MCP server entry, and — for Claude Code — installs the hook scripts that inject the identity crystal, capture deltas, and run recall on every prompt.

What it sets up

Claude Code — full experience.

  • MCP server fathom written to ~/.claude.json (user scope, all projects).
  • Hooks installed to ~/.fathom/hooks/:
    • fathom-crystal-hook.sh — SessionStart, injects the identity crystal.
    • fathom-delta-hook.sh — UserPromptSubmit + Stop, captures prompts and responses to the lake (async).
    • fathom-recall-hook.sh — UserPromptSubmit, surfaces relevant memories.
  • Hook entries patched into ~/.claude/settings.json.

Claude Desktop / Cursor — MCP only.

  • MCP config written to the platform's claude_desktop_config.json (macOS / Windows / Linux paths handled).

Other — prints the JSON config block on stdout so you can paste it into any MCP-speaking host.

Requirements

  • A running Fathom instance you can reach over HTTP. See fathomdx for self-hosting (docker compose up -d).
  • An API key from your Fathom dashboard's Settings → API Keys page. Grant lake:read and lake:write at minimum — the recall hook reads, the delta-capture hook writes.
  • Node.js 18 or newer on the machine running the MCP host.

How it relates to the other packages

fathom-connect is the installer. The MCP server it points hosts at is fathom-mcp, launched via npx -y fathom-mcp. You don't need to install fathom-mcp yourself — npx handles it on first launch.

If you want lake access from the terminal instead of (or in addition to) MCP, see fathom-delta-cli. If you want a background watcher that pushes local activity into the lake, see fathom-agent.

License

MIT. See LICENSE.