autumn-add-payments

Stripe checkout flows for new subscriptions are implemented by redirecting customers to a checkout URL returned by the Autumn checkout endpoint. Once payment is captured, you confirm the purchase by calling the Autumn attach endpoint to finalize the subscription.

Subscription management handles plan upgrades and downgrades by using Autumn's product scenarios to determine the correct next action. The checkout response provides preview data for billing changes, allowing the app to apply upgrades, downgrades, or renewals without hand-rolling complex billing logic.

Yes, you can process seat-based pricing and prepaid products by passing feature quantities to the Autumn API. The Skill supports quantity-based billing, allowing you to dynamically adjust the number of seats or prepaid units during the checkout and attach flow.

The checkout endpoint generates a Stripe URL for new customers to enter payment details, while the attach endpoint confirms purchases for existing customers with a saved payment method. Together, they handle scenario-aware billing for both initial and subsequent transactions.

You determine the correct next action by using Autumn's products.list endpoint to fetch scenario-aware product data. This allows your app to distinguish between new, active, scheduled, upgrade, downgrade, and renew scenarios, returning the correct checkout URL or preview data for the UI.