Does NotebookLM have an API?
Not yet (as of early 2026). Google has not released a public Gemini Notebook API. Gemini Notebook Toolkit provides the closest practical alternative — automated one-click capture from 30+ platforms into Gemini Notebook notebooks.
In more detail
Gemini Notebook does not have a public API in early 2026. There is no way to programmatically create notebooks, add sources, or query content from external scripts. Workarounds: Gemini Notebook Toolkit (a Chrome extension that automates source capture), Google Drive as a bridge (Gemini Notebook reads native Drive files), or browser automation (fragile, not recommended). Signals from Google suggest a developer preview API may ship in 2026. For the 90% use case ("get content into Gemini Notebook automatically"), Gemini Notebook Toolkit covers it today.
Get one-click capture for NotebookLM
Gemini Notebook Toolkit saves ChatGPT, Claude, YouTube, Reddit, and any web page to NotebookLM in one click. Free to install.
Install Gemini Notebook Toolkit