New Project
A real-time multiplayer chat powered by Liveblocks.
This example shows how to build a realtime, multiplayer AI chat with Liveblocks Feeds, Next.js, and AI Elements.
Each chat is a feed inside a Liveblocks room, so messages sync instantly to
everyone connected, complete with shared presence (avatar stack and a live "AI
is thinking…" status). The AI reply is generated on the server and streamed back
into the feed with @liveblocks/node (createFeedMessage + updateFeedMessage),
then rendered live for all users through the useFeedMessages hook — including
reasoning, chain of thought, tool calls, sources, and token usage via AI
Elements.
Run the following command to try this example locally:
This will download the example and ask permission to open your browser, enabling you to automatically get your API key from your liveblocks.io account.
Alternatively, you can set up your project manually:
npm install.env.local file and add your secret key as the
LIVEBLOCKS_SECRET_KEY environment variableAI_GATEWAY_API_KEY from the
Vercel AI Gateway to get real model
responses. Without it, the example uses a built-in mock assistant so it still
runs end to end.npm run dev and go to http://localhost:3000To see the realtime sync, open the page in two browser tabs and send a message from one — it appears instantly in both, along with the AI's reply.
To both deploy on Vercel, and run the example locally, use the following command:
This will download the example and ask permission to open your browser, enabling you to deploy to Vercel.
After forking
this example
on CodeSandbox, create the LIVEBLOCKS_SECRET_KEY environment variable as a
secret.
