Hi guys, is there a possibility to connect xiaomi ip camera to homey? Maybe also other devices which are not included in xiaomi mi home or xiaomi aqara zigbee app. Thanks in advance
The camera, if you know the right snapshot url yes (if the cam is supported that) also could use the search option.
Example Homey Cameras
For the rest, 99% you need a app to connect devices to homey. If they not supported by the app your mention, you could ask the devolper for adding support. Or make a app yourself and not having the skills, you can make a request here
And just a free hint… the forum has a good search option 
