The Agent Development Kit is Google's open source framework for building, evaluating, and deploying agents. It ships in several languages.
Google's ADK site says the framework is open source and available in Python, TypeScript, Go, and Java. Last checked 16 Oct 2026.
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Three other agent frameworks tools listed in this directory.
Agent frameworks
Browser Use lets an agent operate a real browser. The open-source library is Python, and the cloud SDK supports Python and TypeScript.
Agent frameworks
Agent-Native is an open source TypeScript framework for building agents that share actions with a user interface. You define a capability once, and the agent, the app, and other clients call the same code.
Agent frameworks
AutoGen is Microsoft's multi-agent framework. It is in maintenance mode, so new work is directed to Microsoft Agent Framework, but the library and docs remain published.