What is the best alternative to Agent Development Kit (Google ADK)?

It depends on whether you'd rather self-host or buy a managed product. langchain is the most widely-adopted open-source alternative (147k GitHub stars); CrewAI Platform is one of the commercial options. Compare the full list above on adoption, license, and pricing.

Is there a free or open-source alternative to Agent Development Kit (Google ADK)?

Yes. langchain, ruflo, and MetaGPT are open-source agent frameworks you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.

How are these Agent Development Kit (Google ADK) alternatives ranked?

Every product in the agent frameworks category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.

Alternatives · Agent Frameworks

Agent Development Kit (Google ADK) alternatives

Looking for an alternative to Agent Development Kit (Google ADK)? Below are the agent frameworks in our index that do a similar job — open-source options are ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Agent Development Kit (Google ADK) is open source, so the list below includes both other self-hostable projects and commercial products.

the 10 closest of 54 · all agent frameworks · how we rank

The product you're replacing

Agent Development Kit (Google ADK)FrameworkAgent Frameworks

Google's open-source, code-first Python framework for building, evaluating and deploying AI agents.

Open source · 22k stars · Python · Apache-2.0 · updated Sep 2026

Visit Agent Development Kit (Google ADK) →Full Agent Development Kit (Google ADK) record

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Commercial alternatives to Agent Development Kit (Google ADK)

Listed alphabetically — GitHub stars don't measure commercial adoption.

CrewAI PlatformPlatformFramework and platform for orchestrating role-playing multi-agent crews.FreemiumVerified

vs Agent Development Kit (Google ADK) — CrewAI Platform is a commercial product; Agent Development Kit (Google ADK) is open-source and self-hostable.

Open-source alternatives to Agent Development Kit (Google ADK)

Ranked by maintained adoption — self-hostable and free to run.

langchainFrameworkThe agent engineering platform.Open sourcePython · MITVerified · Active 147kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, langchain is MIT.

rufloFrameworkThe leading agent meta-harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems.Open sourceTypeScript · MITVerified · Active 73kGitHub stars

vs Agent Development Kit (Google ADK) — Agent Development Kit (Google ADK) is written primarily in Python; ruflo in TypeScript.

MetaGPTFrameworkA multi-agent framework that assigns software-company roles to LLM agents to turn a requirement into a project.Open sourcePython · MITVerified 71kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, MetaGPT is MIT.

autogenFrameworkA programming framework for agentic AI; upstream is in maintenance mode.Open sourcePython · CC-BY-4.0Verified 61kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, autogen is CC-BY-4.0.

crewAIFrameworkFramework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.Open sourcePython · MITVerified · Active 59kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, crewAI is MIT.

LlamaIndexFrameworkFramework for connecting LLMs and agents to your own documents and data.Open sourceMITVerified · Active 52kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, LlamaIndex is MIT.

LangGraphFrameworkLangChain's low-level orchestration framework for stateful, controllable agents.Open sourcePython · MITVerified · Active 42kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, LangGraph is MIT.

DSPyFrameworkStanford's framework for programming, not prompting, language models, with optimisers for prompts and weights.Open sourcePython · MITVerified · Active 38kGitHub stars

vs Agent Development Kit (Google ADK) — Licensing differs: Agent Development Kit (Google ADK) is Apache-2.0, DSPy is MIT.

CopilotKitFrameworkThe frontend stack for agents: generative UI, shared state and human-in-the-loop for web, mobile, Slack and Teams.Open sourceTypeScript · MITVerified · Active 37kGitHub stars

vs Agent Development Kit (Google ADK) — Agent Development Kit (Google ADK) is written primarily in Python; CopilotKit in TypeScript.

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Frequently asked

What is the best alternative to Agent Development Kit (Google ADK)?: It depends on whether you'd rather self-host or buy a managed product. langchain is the most widely-adopted open-source alternative (147k GitHub stars); CrewAI Platform is one of the commercial options. Compare the full list above on adoption, license, and pricing.
Is there a free or open-source alternative to Agent Development Kit (Google ADK)?: Yes. langchain, ruflo, and MetaGPT are open-source agent frameworks you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.
How are these Agent Development Kit (Google ADK) alternatives ranked?: Every product in the agent frameworks category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.