Google Agent Development Kit
Google's open-source toolkit for building and deploying multi-agent systems
What is Google Agent Development Kit?
Google Agent Development Kit (ADK) is an open-source framework for building, testing and deploying AI agents and multi-agent systems. It is optimized for Gemini and Google Cloud but works with other models. It is Apache-2.0 licensed.
Pros
- Built-in eval and dev UI
- Easy deploy to Google Cloud
- Apache-2.0 licensed
Cons
- Best fit with Gemini and Google Cloud
- Smaller community than LangGraph
- Fast-moving APIs
Where Google Agent Development Kit ranks
Alternatives
Google Agent Development Kit alternatives
Microsoft Agent Framework
Microsoft's open-source agent SDK for .NET and Python, successor to AutoGen
Claude Agent SDK
Anthropic's SDK for building agents on the same harness that powers Claude Code
CrewAI
Open-source Python framework for teams of role-based AI agents
LangGraph
Open-source framework for building stateful, controllable agents as graphs
LlamaIndex
Open-source framework for agents over your documents and data
Mastra
TypeScript framework for AI agents, workflows, memory and evals
Google Agent Development Kit FAQ
What is Google Agent Development Kit?
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Google Agent Development Kit (ADK) is an open-source framework for building, testing and deploying AI agents and multi-agent systems. It is optimized for Gemini and Google Cloud but works with other models. It is Apache-2.0 licensed.
How much does Google Agent Development Kit cost?
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Google Agent Development Kit is open source. Apache-2.0 licensed.
Is Google Agent Development Kit free?
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Yes. Google Agent Development Kit is open source and free to self-host; you pay only for the model API and hosting you use.
Is Google Agent Development Kit an autonomous AI agent?
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We rate Google Agent Development Kit as "Task agent": completes tasks you hand it, then reports back.
What are the best Google Agent Development Kit alternatives?
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Popular alternatives to Google Agent Development Kit are Microsoft Agent Framework, Claude Agent SDK, CrewAI, LangGraph, LlamaIndex.