Agent Development Kit (ADK) vs. Agent2Agent (A2A) Comparison


Agent Development Kit (ADK) Google	Agent2Agent (A2A) Google	+	+
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About The Agent Development Kit (ADK) is a flexible, open-source framework for building and deploying AI agents. It is tightly integrated with Google’s ecosystem, including Gemini models, and supports popular large language models (LLMs). ADK simplifies the development of both simple and complex AI agents, providing a structured environment for building dynamic workflows and multi-agent systems. With built-in tools for orchestration, deployment, and evaluation, ADK helps developers create scalable, modular AI solutions that can be easily deployed on platforms like Gemini Enterprise Agent Platform or Cloud Run.	About Agent2Agent (A2A) is a protocol developed by Google to enable seamless communication between AI agents. It facilitates the transfer of knowledge and tasks between different AI systems, allowing them to collaborate and execute complex workflows. A2A aims to enhance interoperability between AI agents, enabling more sophisticated, multi-agent systems that can perform tasks autonomously across various platforms and services.
Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience The Agent Development Kit (ADK) is designed for AI developers, researchers, and organizations looking to build, deploy, and manage AI agents using Google’s ecosystem, Gemini models, and a wide array of third-party integrations	Audience Agent2Agent is designed for AI developers, researchers, and businesses building advanced AI systems that require seamless communication and coordination between multiple AI agents for complex tasks
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Not Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Not Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing Free Open source Free Version Supported Free Trial Not Supported	Pricing Free Open source Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 4.0 / 5 Read all reviews	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software
Pros & Cons from Real Users Pros ADK feels like a serious framework for people who want to build real agents, not just quick demos. It gives developers a structured way to define agents, connect tools, coordinate multi-agent workflows, and move from local testing toward production. I like that it is open source and supports multiple languages. Python is great for AI work, but TypeScript, Go, Java, and Kotlin support make ADK more realistic for teams building inside existing engineering stacks. The production focus is the biggest advantage. ADK is built around debugging, evaluation, deployment, and reliability, which are exactly the things teams need once an agent goes beyond a prototype. Cons ADK may be more framework than you need for a simple chatbot or one-off automation. If the use case is small, a lighter tool may be faster to set up.
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information Google Founded: 1998 United States google.github.io/adk-docs/	Company Information Google Founded: 1998 United States google.github.io/A2A/
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Categories Agentic AI Supported Agentic Orchestration Supported AI Agent Builders Supported AI Agent Frameworks Supported AI Orchestration Supported	Categories Agentic AI Supported Agentic Orchestration Supported AI Development Supported AI Orchestration Supported

Integrations AG-UI Supported Agent Control Supported Agent Development Kit (ADK) Not Supported Agent Payments Protocol (AP2) Not Supported Agent2Agent (A2A) Supported Agentspan Supported Gemini Supported Gemini Enterprise Supported Gemini Enterprise Agent Platform Supported Google Cloud Run Supported Hindsight Supported Model Context Protocol (MCP) Not Supported OpenUI Supported Openlayer Supported Prefactor Supported Redpanda Agentic Data Plane Not Supported Simaril Supported asqav Supported Show More Integrations View All 14 Integrations	Integrations AG-UI Not Supported Agent Control Not Supported Agent Development Kit (ADK) Supported Agent Payments Protocol (AP2) Supported Agent2Agent (A2A) Not Supported Agentspan Not Supported Gemini Not Supported Gemini Enterprise Not Supported Gemini Enterprise Agent Platform Not Supported Google Cloud Run Not Supported Hindsight Not Supported Model Context Protocol (MCP) Supported OpenUI Not Supported Openlayer Not Supported Prefactor Not Supported Redpanda Agentic Data Plane Supported Simaril Not Supported asqav Not Supported Show More Integrations View All 4 Integrations
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