Save contact via python web form

I have a web form collecting email addresses via a python Django web site. The email is used to subscribe the user to new uploads on the site. I was recently asked to send these email addresses so they are stored in Keap. From what I can tell I have to create a new keap developer application in order to do this? And I need to include billing info and everything? All I want to do is send the emails to the account using the API. Anybody know of an easier way to do this?

Could you just embed the Keap contact form inside the Django site? That’s the most straightforward path, and would add the contacts directly to Keap where our automations could perform additional actions as required.