Where can I get the API and SDK description from Microdigital?

Question

CCTV

There is an IP camera manufactured by Microdigital. In the "User's Guide" of the camera it is written about "A complete set of APIs for software integration" with a link to the old Microdigital website and some mythical "Microdigital Control SDK". However, neither the description of the API nor the SDK can be found anywhere. Maybe someone has a description of the API or can share the SDK