If I were building an API service, I think I would want control over the security around the API and the site doesn't describe in depth how the actual customer's data is secured, just "assign a random token".

What domain would this white-label admin interface reside on if a sales/signup page and my actual API endpoints are on my domain for example? Wouldn't customers find it jarring to be going to "myawesomeAPI.com" to signup and then the domain for actual API calls ends up on "resteasyapi.com"?