Accessing Mikrotik Cookies after Hotspot Login

I’m using 2.4 GHz access points with Mikrotik Hotspots to authenticate clients. Clients log in with their username and password, and this authenticates with RADIUS. Currently if they want to check how much cap they have left (MB/GB, or what their rate limit is), then they have to go to our company website and log in again. This takes them to a customer portal with their account details and their usage stats etc.

Basically the Mikrotik+RADIUS is one authentication, and the ISP website with the account details is a separate authentication.

I hate having users log in twice. I want users to log in once with the Hotspot, and then use the cookie that is saved on their computer to automatically log in to our website.

Is it possible to use one cookie for both logins? I am not very clued up on cookies, but I don’t want to go through the trouble of testing it if it is impossible.

You have no control over the cookie RouterOS sets, so it’s unlikely you can set one another server would also accept.