Autumn
Billing infrastructure for AI
Autumn is open-source billing infrastructure over Stripe for AI startups: it manages who is paying for what, tracks usage and controls feature access.
- Founders
- Ayush Rodrigues, John Yeo
- YC batch
- S25
Company posts
Summaries from the company’s own website.
- How Runable prices an AI agent for 1.7 million users ↗
The post explains how Runable uses a credit-based pricing system, including daily credits, regional free tiers, and separate meters for different products and billing channels. It also describes how Runable iterated through several pricing versions over a year and says the company used that flexibility to run experiments and manage growth.
- Building on top of Stripe billing ↗
Autumn says it is not replacing Stripe Billing; instead, it focuses on the layer of billing complexity that sits on top of subscriptions and invoices, especially for credit-based pricing. The post explains how modern usage and credit systems can require real-time reads, caching, rollovers, alerts, and other application state that Stripe’s core billing abstractions do not fully cover.