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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 Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not 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

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 Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Open source
Free Version Supported
Free Trial Not Supported

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:

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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 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

AG-UI
United States
ag-ui.com

Company Information

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

Alternatives

Alternatives

AutoGen

AutoGen

Microsoft
Flowise

Flowise

Flowise AI
TF-Agents

TF-Agents

Tensorflow

Categories

Agentic AI Supported
UX Supported

Categories

Agentic AI Supported
AI Agent Builders Supported
AI Orchestration Supported

Integrations

OpenUI Supported
AG-UI Not Supported
Agent Control Not Supported
Agent Development Kit (ADK) Supported
Agent2Agent (A2A) Not Supported
Agentspan Not Supported
Agno Supported
CrewAI Supported
Gemini Enterprise Not Supported
Gemini Enterprise Agent Platform Not Supported
Google Cloud Run Not Supported
Hindsight Not Supported
LangGraph Supported
Mastra AI Supported
Model Context Protocol (MCP) Supported
Openlayer Not Supported
Prefactor Not Supported
PydanticAI Supported
Simaril Not Supported
asqav Not Supported

Integrations

OpenUI Supported
AG-UI Supported
Agent Control Supported
Agent Development Kit (ADK) Not Supported
Agent2Agent (A2A) Supported
Agentspan Supported
Agno Not Supported
CrewAI Not Supported
Gemini Enterprise Supported
Gemini Enterprise Agent Platform Supported
Google Cloud Run Supported
Hindsight Supported
LangGraph Not Supported
Mastra AI Not Supported
Model Context Protocol (MCP) Not Supported
Openlayer Supported
Prefactor Supported
PydanticAI Not Supported
Simaril Supported
asqav Supported
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