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. By abstracting away the underlying billing logic, Autumn allows engineering teams to focus on core product development rather than repetitive tasks like writing usage gating middleware, setting up webhook handlers for payment events, or maintaining database tab