Access Token generation

Dear all,

When building a PoC application based on Solid we were provided a separate service just for the PoC to generate access tokens.

Is there an open / standard way to obtain security tokens to automate application logins based on a service user?

EDIT: Inspecting the elements in the page where you are logged in with your WebId > Application > Storage, you can get the token create by solid-auth-client.js

If it does not exist yet, an application to retrieve security tokens and set expiration would be a great addition to define how we interact with different pods based on the same application.