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AGENT INFRASTRUCTURE · WORTH A LOOK

Google ADK (Agent Development Kit)

Google's open-source, code-first framework for building, evaluating and deploying AI agents (Python, TypeScript, Go, Java), with multi-agent patterns…

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What Google ADK (Agent Development Kit) does

Google's open-source, code-first framework for building, evaluating and deploying AI agents (Python, TypeScript, Go, Java), with multi-agent patterns (sequential, parallel, loop, agent-as-a-tool), a local `adk web` test UI with tool-call tracing, and built-in evals. Model-agnostic but optimised for Gemini and Google Cloud (Vertex AI Agent Engine, Memory Bank).

Good for

  • Build a multi-step internal agent (research, triage, data lookups) with tests before it goes live
  • Prototype a Graph RAG search agent over your own data using Google's free codelab (goo.gle/graphrag)

Try this in 10 minutes

  1. Build a multi-step internal agent (research, triage, data lookups) with tests before it goes live. Use the free version: pick one real example from your own business and try just that.
  2. Prototype a Graph RAG search agent over your own data using Google's free codelab (goo.gle/graphrag). Put the result next to how you do it today. Is it faster, cheaper or better?
  3. Read the quick-start and note which no-code tools (n8n, Make, Zapier, Claude) it connects to.

Mini-tasks based on common small-business uses for this tool.

Honest take

No red flags in our notes so far

  • Developer-level.
  • Docs: adk.dev ; repo: github.com .
  • Already referenced by the AQuA (ADK recipe) entry and video notes 2026-10-18, 2026-10-25 and 2026-10-27.
  • Spanner (Spanner Graph) not added separately: it's a Google Cloud database product covered by the Google Cloud entry.

Our Hype or Fact? checks

Worth testing

Pricing

Free, open source; you pay for the models and any Google Cloud services you run it on.

Prices as listed by the maker when we last checked (2026-10-27); usually in US dollars. Check the website for current prices.

Latest update

  • 2026-10-26: Featured in Google Cloud's free Graph RAG codelab (Spanner Graph + ADK), re-uploaded on X by @ryouxbt as a 'course'.

Is Google ADK (Agent Development Kit) worth it? Quick answers

Is Google ADK (Agent Development Kit) worth it?

Google ADK (Agent Development Kit) is worth a look if it matches a job you already do (Agent infrastructure). It is free or open source, so the main cost is your time to set it up.

How much does Google ADK (Agent Development Kit) cost?

Free, open source; you pay for the models and any Google Cloud services you run it on.

What is Google ADK (Agent Development Kit) used for?

Google's open-source, code-first framework for building, evaluating and deploying AI agents (Python, TypeScript, Go, Java), with multi-agent patterns… Typical uses: build a multi-step internal agent (research, triage, data lookups) with tests before it goes live; prototype a Graph RAG search agent over your own data using Google's free codelab (goo.gle/graphrag).