Google ADK
Google's code-first Python toolkit for building, evaluating and deploying tool-using or multi-agent applications with local and cloud options.
Overview
Google's code-first Python toolkit for building, evaluating and deploying tool-using or multi-agent applications with local and cloud options.
Graph workflows, delegation, and human-in-the-loop controls · Custom, OpenAPI, and MCP tool integrations · Local development UI, evaluation, and container/cloud deployment
Developer agent frameworks · Apache-2.0
Original source & installation instructions
Apache-2.0 covers the toolkit, not a ready-to-use hosted agent; verify non-Gemini integrations and account separately for model and cloud charges.