If you don't need map images and would like simple position elements geographically over the empty space, then you can use the EmptyProvider.
The MapProviderBase is a base abstract class of any built-in map providers for RadMap control. When you want to use you own custom provider it also should be inherited from the MapProviderBase class.
It seems it is possible to create a map provider for map24. According to documentation you can use SOAP or HTTP GET RenderBitmapImage Request:
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