Hey Aras, I think the point is you start somewhere like here: https://devcentral.f5.com/wiki/iControl.LocalLB__Pool__get_list.ashx and then make additional requests for the relevant configuration of each/some pool, as per your requirements. Like, get_state, get_stats and so on.
Clustering information is here: https://devcentral.f5.com/wiki/iControl.System__Cluster.ashx.
Configuration file download is here (but very tricky I think): https://devcentral.f5.com/wiki/iControl.System__ConfigSync__download_configuration.ashx.