Manage your subscriptions, invoices, and payment methods
The billing portal is accessed through your application. Look for a "Billing", "Subscription", or "Account" link in your app settings.
To link users to their billing portal:
/portal/auth?token=<user_jwt>&return_url=<app_url>
The JWT must include sub (user ID) and
org (organization ID) claims.
The optional return_url lets users return to your app.