Autumn

Autumn provides a specialized billing infrastructure tailored for artificial intelligence startups, offering a unified API to manage pricing plans, usage tracking, credit systems, and subscription entitlements. The platform eliminates the need for companies to build and maintain in-house billing logic by delivering a drop-in solution that handles usage limits, credit balances, webhooks, payments, and real-time synchronization across different billing models. Its core functionality revolves around two primary operations: checking whether a user is allowed to access a feature based on predefined limits, and tracking usage events with granular detail. For example, developers can call `check({ featureId: "ai_tokens" })` to verify remaining credits before serving a request, and then call `track({ featureId: "ai_tokens", value: 1024 })` to record consumption. This approach reduces latency to under 100 milliseconds for typical responses, enabling real-time gating of AI model endpoints, token-based services, or feature-based subscriptions. Autumn addresses a common pain point for AI startups: the complexity of managing both self-serve payments (e.g., credit card subscriptions) and enterprise deals (e.g., custom contracts with negotiated usage caps). The platform acts as a single source of truth, reconciling entitlements across these two channels. It supports flexible pricing structures such as per-token billing, tiered usage plans, hybrid models combining flat fees with usage-based components, and prepaid credit systems.