Three steps to full access.
Get the extension
Sign in at notebook.google.com, load the extension, and the HUD turns green. The Chrome Web Store listing is in review; until it is approved, GNKG installs unpacked (chrome://extensions → Developer mode → Load unpacked) from an early-access build.
Open the console
Click the GNKG icon → Open console (side panel), or use the Console page — it goes LIVE automatically when the extension is present.
Give your agents the bridge
Run the one-line installer on the Agents page (writes MCP configs for Claude Desktop, Claude Code, Cursor and Windsurf, installs the /gnkg skill), or add the bridge by hand with npx -y @metaphyllc/gnkg-bridge. The extension auto-connects to ws://localhost:7801/extension.
Install and Use (Page-Visitor Instructional)
A. Load the extension. Open chrome://extensions, enable Developer mode, choose Load unpacked and select the extension/ folder. Pin GNKG. Open https://notebooklm.google.com and sign in; the HUD in the bottom-right corner turns green when the session tokens are captured.
B. Open the console. Click the GNKG icon → Open console (side panel). Refresh notebooks, select one, add a URL or paste text, generate a Studio artifact, ask a question, build the graph.
C. Run the pump. Pump tab → Choose folder → Plan bins (FFD) → inspect Bin 0 → Push to "notebook". Watch the Jobs & Log tab. Set a rolling window in Settings if the corpus exceeds your plan's source cap.
D. Give Claude full access. Add the published bridge — no zip, no local npm install:
{ "mcpServers": { "gnkg": { "command": "npx", "args": ["-y", "@metaphyllc/gnkg-bridge"] } } }
The extension auto-connects to ws://localhost:7801/extension; gn_health confirms the lane. OmniLad or WCRS can use the REST twin at http://127.0.0.1:7802/api/<tool> (for example POST /api/gn_create_artifact).
E. Use the Console page. The console on the site is the same component as the side panel. With the extension installed it runs live; without it, it runs the simulator — a faithful in-memory Gemini Notebook that lets you plan bins, build graphs and rehearse the workflow before you touch a real notebook.
“The bridge was never the server. The bridge was the session.”