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Google ADK

by Google@googleMountain View, California, USANo ratings yet

Open-source framework for building, testing and deploying AI agents in code

Visit adk.dev
Tool type
Open-source agent framework
Made for
Developers and engineering teams
Runs on
Local, Docker, Google Cloud
Run locally, in your own containers, or on Cloud Run, GKE or Agent Runtime.
Last checked
28 Oct 2026
3 product sources

What it does

Google's Agent Development Kit (ADK) is an open-source code library for building, testing and deploying AI agents. Developers write agents in Python, TypeScript, Go, Java or Kotlin, defining instructions, a model and tools such as Google Search. The output is a running agent that can be tested locally and deployed as a container or to Google Cloud.

Teams can start with a single prompt-and-tools agent and grow into multi-agent hierarchies or graph-based workflows that mix deterministic code with model reasoning, including routing, fan-out/fan-in, loops, retries and human-in-the-loop steps. ADK includes a dev UI, an evaluation command, and an Agents CLI for scaffolding and testing with AI coding assistants. It manages context by filtering events, summarizing older turns and lazy-loading artifacts. It is optimized for Gemini but works with other models, including locally run ones.

ADK suits software developers and engineering teams comfortable writing code. Installation uses a package manager, with Python 3.11+ required for the Python package and Go 1.25+ for ADK Go v2. The framework is Apache 2.0 licensed, while model usage and Google Cloud hosting may carry separate costs, so request a quote or check provider rates. Non-developers have only a limited no-code Agent Config option.

What it can do

  • Build single and multi-agent systems in Python, TypeScript, Go, Java or Kotlin
  • Graph-based workflow runtime with routing, fan-out/fan-in, loops, retry and human-in-the-loop
  • Built-in dev UI and evaluation command for testing and debugging agents
  • Context management that filters, summarizes and lazy-loads session content
  • Deploy via Docker or one-command deployment to Cloud Run, GKE or Agent Runtime

Works with

  • Google Search
  • MCP tools
  • OpenAPI specs
  • Google Cloud Run
  • GKE
  • Gemini

Example workflows

Research agent prototype (illustrative)
Input: a short instruction and the Google Search tool. Steps: install google-adk, define an Agent with a model, run it with adk run or adk web. Output: a locally testable research assistant you can then evaluate and deploy.
Two-step graph workflow (illustrative)
Input: two agents, one generating a fruit name and one describing a health benefit. Steps: connect them as edges in a Workflow from START. Output: a deterministic pipeline you can run locally or deploy with adk deploy cloud_run.

Before you choose

  • The framework code is free under Apache 2.0, but model API calls and Google Cloud hosting are separate costs; request a quote or check provider pricing for those.
  • The Workflow runtime and some newer features are described as new in ADK 2.0, so check the documentation for your chosen language version.
  • Aimed at coders; non-developers have only a limited no-code Agent Config option.

Listed under

Get started

For example pip install google-adk; guides at adk.dev.

  1. Create and activate a Python virtual environment, or set up a Go, Java, Kotlin or Node project.
  2. Install ADK (for example pip install google-adk or npm install @google/adk).
  3. Define an agent and run it with adk run or adk web, then deploy with adk deploy docker or cloud_run.
Install package and follow quickstart

Plans and prices

The source code is available under Apache 2.0. Model-provider and deployment charges are separate.

Open-source softwareFreeCode only; excludes infrastructure and external services
  • Apache 2.0 license

Source: github.com/google/adk-python, checked 28 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 28 Oct 2026. Each source supports part of the overview; availability and prices can change.

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Last checked 28 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.