Add a usage-based credit system to your Rails app, easily. Let users buy and spend credits on usage-based actions. Refill Stripe subscriptions with credits, sell one-time booster credit packs, implement PAYG (pay-as-you-go) billing, award free credits as bonuses, manage prepaid credits / tokens. ...

Calculate SaaS metrics like the MRR, ARR, churn, LTV, ARPU, total revenue, estimated valuation, and other business metrics of your `pay`-powered Rails app – and display them in a simple dashboard.

Asaas payment processor for pay gem (Payments engine for Ruby on Rails).

Add support for AWS Marketplace SaaS subscriptions to Pay

Lago processor support for Pay gem.