> For the complete documentation index, see [llms.txt](https://docs.inrupt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inrupt.com/ess/2.3/services/service-notification.md).

# Notification Services

ESS provides:

* [Notification Gateway Service](/ess/2.3/services/service-notification/service-notification-gateway.md) for discovering the protocol-specific endpoints.
* [WebSocket Notification Service](/ess/2.3/services/service-notification/service-websocket.md) which provides a secure implementation of a WebSockets notification protocol.