Google Agent Development Kit (ADK)

An open-source framework for building, orchestrating, and deploying production-ready multi-agent AI systems.

Google’s Agent Development Kit (ADK) provides the modular architecture needed to move beyond basic prompts into complex, autonomous workflows. It treats agent construction like standard software engineering: you get precise control over state management, session history, and tool integration through a Pythonic interface. The toolkit excels at multi-agent orchestration, allowing specialized units like LlmAgents and WorkflowAgents to collaborate via graph-based routing or sequential patterns. With built-in support for Vertex AI, Gemini, and local debugging tools, ADK simplifies the transition from a local prototype to a scalable cloud deployment on GKE or Cloud Run.

https://google.github.io/adk/