Notebooklm-Unofficial-API-MCP

A thin wrapper around notebooklm-py (MIT licensed, by Teng Lin) — the unofficial Python client/MCP server for Google NotebookLM. This project depends on notebooklm-py rather than vendoring it, and adds project-specific MCP tools on top of its stock tool set (notebooks, sources, chat, studio artifact generation, deep research, sharing).

Why a wrapper

notebooklm-py already ships a complete MCP server (notebooklm-mcp). This wrapper exists so custom tools can be layered on without forking upstream — notebooklm.mcp.server.create_server() is called and its returned FastMCP instance is extended in src/notebooklm_wrapper/server.py.

Getting started

Each person who runs this needs their own authenticated session — there is no shared credential in this repo, and none is possible: notebooklm-py is unofficial and works by driving your own Google account, not a documented API.

1. Prerequisites

• Python 3.10+
• uv (recommended) or pip

2. Clone and install

git clone https://github.com/DevstackK/Notebooklm-Unoffical-API-MCP.git
cd Notebooklm-Unoffical-API-MCP
uv sync
# or: pip install -e .

3. Authenticate with your own Google account

Pick one:

A — Browser login (Playwright), simplest first run:

uv run playwright install chromium   # one-time browser download
uv run notebooklm login

This opens a Chromium window; sign in to the Google account whose NotebookLM notebooks you want the server to access, then close it. The session is saved to a local profile (storage_state.json) — nothing is uploaded anywhere.

B — Import cookies from a browser you're already logged into:

uv pip install "notebooklm-py[cookies]"
uv run notebooklm login --browser-cookies          # reads from Chrome by default
uv run notebooklm login --browser-cookies=firefox  # or another supported browser

Skips the Playwright/Chromium download entirely — useful if you're already signed into NotebookLM in your regular browser.

Verify it worked:

uv run notebooklm status

If you ever need to switch Google accounts: uv run notebooklm login --fresh.

4. Run the MCP server

uv run notebooklm-unofficial-mcp

5. Point Claude Code (or another MCP client) at it

claude mcp add notebooklm-unofficial -- uv run --directory /path/to/Notebooklm-Unoffical-API-MCP notebooklm-unofficial-mcp

Swap /path/to/Notebooklm-Unoffical-API-MCP for wherever you cloned it. Any MCP-compatible client (Claude Desktop, etc.) can point at the same notebooklm-unofficial-mcp command over stdio.

Adding a tool

Add @mcp.tool()-decorated functions inside _register_custom_tools in src/notebooklm_wrapper/server.py.

License

MIT — see LICENSE. Not affiliated with Google or the notebooklm-py project; "unofficial" in the name reflects that both this wrapper and its upstream dependency use NotebookLM's undocumented web API.