Hey there, @kfogarty!
While we don’t have any C# examples from the team here at monday.com, there might be some other folks on the community who can help 
In the meantime, I wrote an overview of how to structure an HTTP request for use with our API here: How to connect Curl to C# APIV2 - #2 by dipro
I hope that helps. Let me know if you have any follow-up questions 