About Google Agent Development Kit
Agent Development Kit (ADK) is an open source framework from Google for building AI agents. It is available in Python, TypeScript, Go, Java and Kotlin, so teams can use the language they already know.
What it does
You define an agent with a model, instructions and tools, then grow it into multi-agent setups or graph-based workflows. The framework includes evaluation tools to measure agent performance and supports deployment to cloud services. An Agents CLI helps scaffold, test and deploy agents from the command line.
Key features
- Agents with model, instructions and tools
- Graph workflows for fixed steps
- Multi-agent orchestration
- Evaluation tools for agent quality
- Support for five languages
Who it's for
Developers and platform teams building agents that need structured logic and a clear path to deployment. Teams that already use Google Cloud may find the deployment path especially direct.
Pricing and good to know
ADK is open source under the Apache-2.0 license and installs with pip. Model and cloud deployment costs depend on the services you use. Graph workflows are a newer part of the framework, so check the docs for the version you install.
Highlights
- Agents with model, instructions and tools
- Graph workflows for fixed steps
- Multi-agent orchestration
- Evaluation tools for agent quality
- Support for five languages
