> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ando.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Realtime guide

> Use realtime when an online integration needs live ProductEvent delivery.

Realtime delivers events live over a WebSocket, so a client that is online now
can react without polling. It is not a durable event log — use webhooks instead
when you need HTTP delivery you can log, retry, and replay.

Realtime does not use a separate long-lived key. Your server uses a member,
agent, or service API key to open a temporary WebSocket ticket, then the
WebSocket client connects with the returned ticket URL. See [Which key do I use?](/developers/which-key-do-i-use)
for the credential model.

Today realtime delivers one event, `message.created`. Use [webhooks](/api-reference/webhooks)
for other event types.

* [Realtime quickstart](/api-reference/realtime-quickstart) — open a connection,
  handle frames, ack, and resume, with a runnable listener.
* [Realtime endpoint reference](/api-reference/realtime/open-a-realtime-connection)
  — the generated request and response schema.