A broker's Private api

I wanna make a desktop application which I’d connect an api with and the broker I’m using doesn’t have a public API,it’s private…

So I began thinking OAUTH2 would be the solution… please could you advice me on what to do…
I really don’t have much idea on stuff like this

@notadummy

Welcome to the community.

You had a second post which was exactly the same as this one so the duplicate has been removed.

I hope someone can help you. Good luck

Any idea?

You’d have to check their documentation what it allows for what kind of authentication to use