Google Releases ADK: Empowering Any Developer to Build Multi-Agent Systems

Google has officially open-sourced the Agent Development Kit (ADK), a Python framework designed for building, testing, and deploying multi-agent workflows. ADK natively supports Gemini models, with built-in tool calling, state management, inter-agent communication, and deep integration with Google Cloud Vertex AI for one-click production deployment. Unlike LangChain's general-purpose design, ADK's agent orchestration centers on a 'conversation tree,' modeling real business processes more closely. Within the first week of release, it garnered over 8,000 GitHub stars.