UML diagram for web service dependencies

I am attempting to draw a UML diagram for the our web service dependencies. I need to break down how all the projects in our solution interact with different web services.

My initial thought what to use Communication Diagram but that did't seem like the right choice when I looked at some examples. Does anyone have any suggestions? Is there an industry standard? I did seethis question here as we开发者_如何学运维ll but I am asking what TYPE of diagram do I choose.

Looks like according to this I should be using a Package Diagram