Question: Is there a service that integrates with Stripe to automate complex calculations for usage-based pricing models?

If you need a service that integrates with Stripe to handle the heavy math required for usage-based pricing models, Metering.ai is a good choice. The service lets you upload usage data, connect to a Stripe account and define formulas for different calculations. It supports array manipulation, date and time calculations and other features that should be useful for companies with usage-based pricing that want to automate data aggregation and billing.

Another good option is ROQ. ROQ provides a data and API layer that makes it easier to build multi-tenant SaaS apps. It includes Stripe integration for payments and subscriptions, deployment of a managed Postgres database and secure frontend database queries. ROQ can cut the time it takes to build and deploy complex SaaS apps, which is useful for large-scale and secure projects.

For something simpler, Kobble offers a no-code authentication portal and built-in Stripe payment integration. Kobble is designed to speed up development, with tools for user management, access control and quotas. It also supports modern frameworks like Next.js, so it's a good foundation for building fast, scalable SaaS apps.