Quickstart

Prerequisites#

Before you begin, you'll need the following:

A Google Gemini API key
Node.js 20+
Python 3.9+
Your favorite package manager

Getting started#

Create a free account#

Sign up for a free developer account on our Enterprise Intelligence Platform to get a license key. You'll use it later to enable persistent threads, observability, and the inspector.

Clone the A2A starter template#

git clone https://github.com/copilotkit/with-a2a-a2ui.git

Install dependencies#

pnpm install

Configure your environment#

Create a .env file in your agent directory and add your Google API key:

agent/.env

GEMINI_API_KEY=your_gemini_api_key

What about other models?

The starter template is configured to use Google's Gemini by default, but you can modify it to use any language model supported by ADK.

Start the development server#

npm run dev

pnpm dev

yarn dev

bun dev

This will start both the UI and agent servers concurrently.

🎉 Start chatting!#

Your AI agent is now ready to use! Navigate to localhost:3000 and start prompting it:

Show me chinese restaurants in NYC

Troubleshooting

If you're having connection issues, try using 0.0.0.0 or 127.0.0.1 instead of localhost
Make sure your agent is running on port 10002
Check that your Google API key is correctly set

What's next?#

Now that you have your basic agent setup, explore these advanced features:

Add some generative UI

Render declarative UI components with A2UI.