# Agent Development Kit(ADK) [Agent Development Kit: Making it easy to build multi-agent applications - Google Developers Blog](https://developers.googleblog.com/en/agent-development-kit-easy-to-build-multi-agent-applications/) - Multi-Agent by Design - Rich Model Ecosystem - Rich Tool Ecosystem - Built-in streaming - Flexible Orchestration - Integrated Developer Experience - Built-in Evaluation - Easy Deployment