Derapi is a universal API for developers building distributed energy resource (DER) software. It provides a single, managed integration layer that accelerates time to market, reduces development costs, and eliminates bespoke, in-house integrations by giving immediate access to a wide range of DER devices and services. The platform is designed to simplify connections across DERMS, energy management, and related ecosystems, enabling faster innovation and scalable, flexible DER applications. It serves DER software developers and device manufacturers looking to connect to utilities, wholesale markets, and energy ecosystems globally.