I see, are you running the authentication in a separate resource from the APIs you're querying?
At the moment, saved variables are defined on a per-resource basis. People have requested for the ability to share them before, there currently aren't plans for including that functionality, but I can let you know here if it does get included!
In the meantime, you might be able to store a value in localStorage (docs) that allows for easier authentication of the other resources 