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Google ADK

★ 14k

Google's Agent Development Kit — code-first multi-agent systems, model-agnostic, deploy anywhere.

Google ADK does the job of Vertex AI Agent Builder, self-hosted. It is Apache-2.0-licensed, so you can do essentially what you like with it, and setting it up is an afternoon, not a weekend. Vertex AI Agent Builder bills $50 for it. 14k stars on GitHub.

Open-source replacement for Vertex AI Agent Builder.

Licence
Apache-2.0
Self-hosting
Medium
The paid one costs
$50
GitHub stars
14k
view the code →official site →

Is it actually a replacement?

We have not written a verdict on Vertex AI Agent Builder yet, so this page says what Google ADK is rather than judging what you would give up. When that product gets a page, this one will link to it.

Google ADK questions

Is Google ADK open source?

Yes — it is released under Apache-2.0.

Can I self-host Google ADK?

Yes — we rate it medium to self-host.

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