Abstract: Various embodiments provide systems, methods, devices, and instructions for protected data use in a third-party software application, where use can be enabled while maintaining protection of the protected data from the third party software application. In particular, various embodiments provide a software application architecture that permits a data party that owns or maintains protected data to support a software development ecosystem where a third-party can develop a third-party software application that uses the protected data while denying the third-party access to the protected data.