Every capability in Finanly is a registered feature key. Your plan assigns keys; core-api checks them at the endpoint (GET /v1/entitlements) and the UI hides or locks what you cannot use.
- Settings → Billing shows your subscription (GET /v1/billing/subscription).
- Change plan opens a Stripe checkout session; Manage opens the Stripe customer portal.
- Downgrades keep your data; gated pages become locked, not deleted.