Here is the page in the developer portal for this- xml-rpc - Keap Developer Portal
There is no sample code. How do I retrieve the ContactID using their email address? I am using C#. I would love to see some sample code for this.
@Doug_Carey, if you search online, you will found different ways of reading XML.
This article below gives examples of how to read the values, but you will have to adapt it to Keap API.