Open source Billing & subscriptions

Usage metering and billing engine for subscriptions, usage-based plans, credits and invoicing.

Billing platform for software products, with subscriptions, usage billing, checkout and license keys.

Pricing and billing layer on top of Stripe that handles plans, usage limits, credits and feature access.

Real-time usage metering for AI, API and infrastructure products, feeding usage-based billing.

Subscription billing and payments platform with product catalogs, invoicing, dunning and payment gateway plugins.

Usage-based pricing and billing with real-time metering, credits and top-ups, and feature entitlements.