I might be able to help, though Kajabi doesn’t make it easy to tell whether what you want to do is something that they support, allow, or don’t want you to do.
I’m a developer, but after scouring the Kajabi site, signing up for a trial, and talking to their support, I can’t find anything resembling an API or other means of writing code against Kajabi. All I can find is the integrations they built themselves.
Do you mind if I ask if you had any more luck than I did? Or did you discover anything else?