api.trello.com is just a CNAME to trello.com, in case that difference was confusing you. The authentication part is taken care of differently depending on the

api.trello.com is just a CNAME to trello.com, in case that difference was confusing you. The authentication part is taken care of differently depending on the kind of tokens we get (the web client uses a cookie) but we turn that data into a standard authentication object and the rest of the route uses the same code regardless of request type.