autumn-modelling-pricing-plans

Define features with the feature() function, then combine them into plans using plan() with items that specify included amounts, resets, and pricing. Store everything in autumn.config.ts, run atmn preview to validate, then atmn push to sync.

Create a metered consumable feature, then add a plan item with a price object using billingMethod: 'usage_based', an amount, billingUnits, and an interval. Autumn charges customers at the end of the cycle based on actual tracked usage.

Usage-based billing charges at the end of the cycle for actual consumption, while prepaid lets customers buy a fixed quantity upfront. Set billingMethod to 'usage_based' or 'prepaid' on the plan item's price object.

Yes, use a feature with type 'credit_system' and a creditSchema mapping metered features to credit costs. For example, a basic model can cost 1 credit and a premium model 5 credits per call.

Yes, add a freeTrial object to the plan with durationLength, durationType ('day', 'month', or 'year'), and cardRequired. For example, a 14-day trial uses durationLength: 14 and durationType: 'day'.

Never set autoEnable: true on plans with prices; it is only for free default plans automatically assigned to new customers. Paid plans must be explicitly purchased through checkout.