ADK + AG-UI Integration Unlocks Rich Frontends for AI Agents
ADK

The gap between powerful backend AI agents and intuitive user-facing interfaces is closing fast. The Agent Development Kit (ADK)—an open-source toolkit for building AI agents—now integrates seamlessly with AG-UI, an open protocol designed for interactive AI user experiences.

This new combination allows developers to pair sophisticated agent reasoning and planning with production-ready, collaborative frontends—without reinventing the wheel.

What ADK Brings to the Table

ADK helps developers go from idea to working AI agent prototypes in hours. It comes with:

  • Multi-step planning – Agents can break down and execute tasks step by step.

  • Tool use – Agents connect to APIs, services, and real-world data sources.

  • State management – Tracks memory and progress without complex chaining logic.

While ADK includes its own playground for local development and debugging, it was not designed to be user-facing. That’s where AG-UI comes in.

How AG-UI Completes the Picture

AG-UI, built by the CopilotKit team, is an open protocol and UI layer that standardizes how agents communicate with frontend applications. It enables:

  • Rich, real-time collaboration between users and agents.

  • Drop-in UI components (via CopilotKit’s React library) like polished chat windows, sidebars, and more.

  • Cross-platform support, generalizing for any frontend and backend setup.

Better Together: ADK + AG-UI

By connecting ADK with AG-UI, developers can now build truly interactive AI applications with features such as:

  • Generative UI – Agents generate UI components alongside text responses.

  • Shared state – Both frontend and backend stay aligned, enabling smoother interactions.

  • Human-in-the-loop control – Users can supervise, approve, or override agent actions.

  • Frontend-aware agents – Agents can fill forms, navigate pages, or annotate documents directly.

Get Started Today

Developers can jump in right away with starter projects and tutorials:

  • Quick Start Repo:

npx copilotkit@latest create -f adk

The ADK + AG-UI integration is a milestone for developers who want to connect intelligent backend agents to polished, collaborative frontends—and ship next-generation AI-powered apps faster.