Remove old api references and retrieve api link from KDE autoconfig References: https://lxr.kde.org/search?%21v=kf5-qt5&_filestring=&_string=api.opendesktop.org Use: https://autoconfig.kde.org/ocs/providers.xml
The marble one needs investigation. The KNewStuff one too, I am not sure what effect setting the provider ID for the cache will have. The others are just config files or examples.