Autumn

AI and other fast-moving startups need to iterate on pricing and sell custom contracts quickly, but building the underlying billing logic, real-time usage ledgering, entitlements, and spend controls from scratch is slow. Teams that rely only on Stripe's native billing lack the flexibility to experiment with usage-based pricing models or manage complex entitlements. The site frames this as a barrier for 'frontier startups' trying to move 10x faster on pricing without re-platforming off Stripe.

Autumn is a pricing layer that sits on top of Stripe and adds billing, real-time ledgering, entitlements, and spend controls out of the box. It lets teams iterate on pricing and sell custom contracts without leaving Stripe. Concrete capabilities listed include usage event aggregation, data warehouse integration, support for multiple billing sources (Stripe, RevenueCat, Vercel), a CLI and MCP interface, and higher tiers that add dedicated cache infrastructure and end-to-end implementation support for high-throughput or compliance needs.