# Server Sent Event Client > Symcon documentation · English · generated on 2026-09-26 > Index: https://www.symcon.de/en/llms.txt Source: https://www.symcon.de/en/service/documentation/module-reference/i-o-instances/serversenteventclient/ The Server Sent Event Client opens an interface which automatically reacts to the Server Event. It uses a HTTP connection. ### Integration in IP-Symcon On the configuration page, the address of the server to which one is responding must be specified under "URL". Only a click on "Apply" saves the settings and then an attempt is made to establish the connection. ![Configuration page](https://www.symcon.de/media/pages/service/dokumentation/modulreferenz/io/serversenteventclient/0550156aee-1790424939/io-serversenteventclient.png)