Autumn is the simplest and most flexible way to manage your application’s pricing, billing, and usage logic, built on top of Stripe with just three API functions and no webhooks required. Acting as your app’s pricing database, Autumn centralizes subscription states, feature permissions, and usage limits, allowing you to define free trials, credit systems, usage tiers, rollovers, add-ons, and custom plans, while supporting upgrades, downgrades, cancellations, and one-time payments, all through unified endpoints. It includes drop-in React and shadcn/ui components for pricing tables, paywalls, and checkout dialogs, plus real-time usage analytics and referral tools. You can update pricing, version plans, and tier structures without touching code, using Autumn’s intuitive UI or config files. Trusted by AI startups and YC-backed teams, Autumn eliminates Stripe webhook complexity, handles edge cases, automates migrations, and scales reliably as your product evolves.