> ## Documentation Index
> Fetch the complete documentation index at: https://upstash-dx-3122-agent-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Upstash Realtime

> Type-safe realtime events for Next.js, built on Redis streams and SSE.

Upstash Realtime adds realtime features to Next.js projects. It is HTTP-based, built on Redis streams and server-sent events, with type-safe events, message history, and built-in authentication helpers.

## Pages

* [Quickstart](/realtime/overall/quickstart): set up Realtime in a Next.js app.
* [Client-Side Usage](/realtime/features/client-side): subscribe to events in React.
* [Server-Side Usage](/realtime/features/server-side): emit events, subscribe to channels, and read history on the server.
* [Channels](/realtime/features/channels)
* [Authentication](/realtime/features/middleware)
* [History](/realtime/features/history)
* [Deployment](/realtime/features/serverless)
* [Pricing](/realtime/overall/pricing)

## For AI agents

* [/docs/realtime/llms.txt](https://upstash.com/docs/realtime/llms.txt) lists every Realtime page.
* Append `.md` to any page URL for its Markdown, for example [/docs/realtime/overall/quickstart.md](https://upstash.com/docs/realtime/overall/quickstart.md).


## Related topics

- [Realtime Quickstart](/workflow/howto/realtime/basic.md)
- [Human-in-the-Loop](/workflow/howto/realtime/human-in-the-loop.md)
- [Pricing](/realtime/overall/pricing.md)
- [Quickstart](/realtime/overall/quickstart.md)
- [History](/realtime/features/history.md)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.