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Does NotebookLM have an API? The 2026 answer

· 3 min read
Romain Peyrichou
Romain Peyrichou
Author of NotebookLM MCP

Yes and no, and the honest answer changed during 2026. Google does publish an API for Gemini Notebook Enterprise, in preview, behind a Cloud project and a licence. The consumer NotebookLM you log into with a personal Google account still has no developer key, and the standalone Podcast API that some posts point at is deprecated and not taking new customers.

Most answers you will find say flatly "there is no API". That was true and is now wrong, which is worse than either.

What does the official API cover?​

Google documents a REST surface for Gemini Notebook Enterprise, including notebook operations and audio overviews — a notebook holds one audio overview at a time, created through notebooks.audioOverviews.create. It is marked pre-GA, which means the terms and the shape can both move.

The access path is the part people miss. It needs a Google Cloud project and a Gemini Enterprise or Education Premium licence, set up by an administrator. It is not a key you sign up for on a developer console, and it does not reach the notebooks in your personal account.

What about the Podcast API?​

Deprecated. Google is not allowlisting new customers for it. If a tutorial tells you to request access, that tutorial is out of date.

So what do people actually use?​

Community projects that drive the same interfaces the web app uses. There are several, in Python and in Node, exposing them as a CLI, as an MCP server, or as a local REST API. They work, they are fast, and they reach your own notebooks with your own login.

They also share one honest caveat: nothing about those interfaces is promised. Google can change them, and when it does the project breaks until someone fixes it. That has happened — the mid-2026 interface rebuild broke every such tool at once.

Which should you pick?​

Three questions settle it.

Do you have an enterprise licence and an administrator? Then use the official API. It is supported, it is the only route with a contract behind it, and nothing below competes with that.

Do you need your own personal notebooks? Then the official API is out, and a community tool is the only route that exists.

Do you need it to keep working unattended? Weigh how quickly the project you pick has recovered from past breakages. That is the only signal that matters, and the commit history tells you more than the README.

When is a community tool the wrong answer?​

  • When the work is contractual — a client deliverable, a regulated pipeline, an SLA. An undocumented interface has no promise attached to it.
  • When you only need text generation over documents. The Gemini API is public, supported and cheaper to reason about; NotebookLM's value is its grounding and citation behaviour, not its text generation.
  • When you cannot run a browser anywhere. Login still happens in a real Chrome, once, even for the tools that avoid the browser afterwards.

Trying this one​

Our own route is both an MCP server and a local REST API, so an agent and a workflow tool can use the same install.

# Claude Code
/plugin marketplace add roomi-fields/claude-plugins
/plugin install notebooklm@roomi-fields

# Then log into Google once, in a terminal
npx -y -p @roomi-fields/notebooklm-mcp notebooklm-mcp-setup-auth

Node 22 or newer. The REST route is in the install guide, and the full endpoint list is in the API reference.