Any Output Api Action Client Side?

Hey!
Working on an app without Server Model. I use API Actions to retrieve, delete and modify data from a Strapi server.
Now I want to make a login to authorize users.
I can make a login, but I then want to save my JVT TOKEN I get back in a variable.
Is it solvable? Cannot find Output for API Action on the client side.
I do not want to add any server model as the app will become a native app through Capacitor.js 3