You can use PTZOptics cameras with Wirecast to stream to YouTube Live.

In the videos below, Andy Chatfield, lead support technician at PTZOptics, reviews how to stream to YouTube Live from Wirecast. 

Once you have the PTZOptics camera connected to Wirecast it is very easy to go in a set up everything in YouTube Live. First you will want to set up your live event in your YouTube Creator Studio. Once everything is set up you can enter you live streaming details into Wirecast.