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About

AG-UI is an open, lightweight, event-based protocol that standardizes how AI agents connect to user-facing applications. Built for simplicity and flexibility, it enables seamless integration between AI agents, real-time user context, and user interfaces. AG-UI is designed for agent-human interaction: during agent executions, backends emit events compatible with standard AG-UI event types, and agent backends can accept simple AG-UI-compatible inputs as arguments. It works with any event transport, including SSE, WebSockets, webhooks, and other streaming systems, while providing a flexible middleware layer that ensures compatibility across diverse environments. AG-UI brings agents into user-facing applications and complements the wider agentic protocol stack: MCP gives agents tools, A2A allows agents to communicate with other agents, and AG-UI connects agents directly to the user interface.

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.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI product developers building interactive agent-powered applications that need structured streaming, tool calls, shared state, and human-in-the-loop control

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

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

Free
Open source
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

AG-UI
United States
ag-ui.com

Company Information

Google
Founded: 1998
United States
google.github.io/adk-docs/

Alternatives

Alternatives

AutoGen

AutoGen

Microsoft
TF-Agents

TF-Agents

Tensorflow
Flowise

Flowise

Flowise AI

Categories

Categories

Integrations

AG-UI
Agent Control
Agent Development Kit (ADK)
Agent2Agent (A2A)
Agentspan
Agno
CrewAI
Gemini
Gemini Enterprise
Gemini Enterprise Agent Platform
Google Cloud Run
Hindsight
LangGraph
LlamaIndex
Mastra AI
Model Context Protocol (MCP)
Prefactor
PydanticAI
Simaril
asqav

Integrations

AG-UI
Agent Control
Agent Development Kit (ADK)
Agent2Agent (A2A)
Agentspan
Agno
CrewAI
Gemini
Gemini Enterprise
Gemini Enterprise Agent Platform
Google Cloud Run
Hindsight
LangGraph
LlamaIndex
Mastra AI
Model Context Protocol (MCP)
Prefactor
PydanticAI
Simaril
asqav
Claim AG-UI and update features and information
Claim AG-UI and update features and information
Claim Agent Development Kit (ADK) and update features and information
Claim Agent Development Kit (ADK) and update features and information