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Alternatives to Google Agent Development Kit

8 tools that compete with or replace Google Agent Development Kit. Ranked by direct product-type match — not generic category overlap.

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Why people look for alternatives to Google Agent Development Kit

The complaints that come up most often in public discussion — reviews, forums and community threads. Not our opinion, and not the vendor's marketing.

  • Less control than LangGraph or plain Python
  • Documentation for advanced deployment is thin
  • Ecosystem smaller than LangChain's
  • Graph workflows feel like a LangGraph copy

Drawn from 48 mentions across 4 sources · researched Aug 6, 2026.

In fairness: users also consistently praise open-source (mit) and free to use, and multi-language sdks: python, typescript, go, java, kotlin. A complaint list is not a verdict — see the full picture on the Google Agent Development Kit page.

Phidata

Phidata

Open-source Python framework for building and running private, production-ready multi-agent systems.

FreemiumTry
Semantic Kernel

Semantic Kernel

Microsoft's open-source SDK for building production-grade AI agents with plugins and orchestration.

FreeTry
INK Editor

INK Editor

Open-source agent OS for building, securing, and scaling production AI agents.

FreemiumTry
OpenAI Agents SDK

OpenAI Agents SDK

Open-source Python framework for building multi-agent workflows with handoffs, guardrails, and voice.

FreeTry
Haystack

Haystack

Open-source AI orchestration framework for production-ready agents and RAG pipelines

FreemiumTry
Mastra

Mastra

TypeScript framework to build observable, production-grade AI agents and durable workflows.

FreemiumTry
Agno

Agno

Open-source Python SDK and self-hosted runtime for building, running, and managing production agent platforms.

FreemiumTry
LangGraph

LangGraph

Open-source framework for building reliable, stateful AI agents with low-level control.

FreemiumTry
Compare Google Agent Development Kit vs LangGraph

Frequently asked questions

What are the best alternatives to Google Agent Development Kit?

We currently list 8 alternatives to Google Agent Development Kit: Phidata, Semantic Kernel, INK Editor, OpenAI Agents SDK, Haystack. Each is ranked by direct product-type match rather than generic category overlap.

How do you choose which Google Agent Development Kit alternatives to show?

Alternatives are ranked by direct product-type match — tools that do the same job — not by shared category tags. Every listed tool is independently re-verified on a continuous cycle.