# Autumn

> Apache-2.0 Stripe billing layer; Free to 8K billing volume

**Category:** Payments  
**Pricing:** freemium  
**URL:** https://useautumn.com  
**GitHub:** https://github.com/useautumn/autumn  
**Added:** 2026-09-04

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## The Hook

Autumn is attach/check/track billing infra on top of Stripe when you are tired of webhook state machines.

## What's Good

Apache-2.0. Self-host or Cloud. Model subscriptions, credits, usage limits, entitlements. Three calls: attach (checkout/upgrades), check (access), track (usage). Free Cloud tier: 8K monthly billing volume, 10k customers, 10M API requests.

## The Catch

Vs Polar/Lago/OpenMeter: Stripe abstraction + entitlements — not Polar MoR, not Lago/OpenMeter metering-first. Stripe fees still apply. Pro Cloud from $375/mo. Free path is Free tier or self-host.

## Verdict

Apache-2.0 Stripe billing layer. Free tier real; still bring Stripe.