About HTTP Authorization
The built-in authorization types should cover most authorization needs, but you can also use the legacy HTTP Authorization method. This method uses authentication forms on a web page. To use API calls, launch a browser, log in to a web form, and establish a session.
In ReadyAPI, create an HTTP Request test step to provide your credentials (username, password, and method). To make the authorization persistent, enable the Maintain HTTP Session setting.
For an example of creating HTTP authorization, see the HTTP Authorization Tutorial.