# Notification Services

ESS provides:

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