Passthrough billing: A guide for ISVs Dwanill Mehta 5 Oct 2026 Dwanill Mehta Share Beginning October 14, 2026 , independent software vendors (ISV) can start preparing their applications to implement Passthrough billing allowing API calls initiated by the application to attribute the API consumption directly to the customer. Passthrough affects both your business model and your application architecture. This guide helps you evaluate whether passthrough is the right model for your application and, if you choose to use it, understand the technical options for enabling it.