The Stripe card appears when Stripe is one of your enabled payment gateways. Open it and, for each kitchen, click Connect Stripe. Sprwt sends you to Stripe's onboarding for a connected Express account (using your business country, and a cross-border agreement type if your country requires it) and brings you back when finished. You need the Stripe Connect permission to use the button.

Once a live account and secret key are stored, the button is replaced by Stripe is connected with a Stripe Account Settings link (to /admin/stripe/account), and the card badge becomes Active. Test-mode keys keep the card Inactive. With several kitchens each one is connected separately.