All of mitmproxy's basic functionality is exposed through the __libmproxy__ library. The example below shows a simple implementation of the "sticky cookie" functionality included in the interactive mitmproxy program. Traffic is monitored for __cookie__ and __set-cookie__ headers, and requests are rewritten to include a previously seen cookie if they don't already have one. In effect, this lets you log in to a site using your browser, and then make subsequent requests using a tool like __curl__, which will then seem to be part of the authenticated session. $!example("examples/stickycookies")!$