Google Releases Open-Source Agent Development Kit For Multi-Agent AI Applications
InfoQ, Monday, April 14th, 2025
At Google Cloud Next 2025, Google announced the Agent Development Kit (ADK), an open-source framework aimed at simplifying the development of intelligent, multi-agent applications. The toolkit is designed to support developers across the entire lifecycle of agentic systems - from logic design and orchestration to debugging, evaluation, and deployment.
ADK has already been adopted internally at Google to power systems such as Agentspace and the Customer Engagement Suite (CES). With this release, Google is opening up access to the same tools used in production environments, giving external developers the flexibility to build and deploy agents on their own terms.
The framework is built around several core concepts. Developers can define modular agents specializing in different tasks, then compose them into larger systems using built-in workflow components - including sequential, parallel, and looping agents- and support for LLM-driven routing through dynamic transfer mechanisms. These components allow agents to interact conditionally or cooperatively depending on context.