OpenAPI in .NET 10: From Setup to Build-Time Generation (with Scalar UI)

Why OpenAPI and Build-Time Generation Matter In the modern web ecosystem, a public API is only as good as its documentation. Even for a Backend-for-Frontend (BFF) , you can reduce developer friction by publishing clear, interactive API documentation. OpenAPI has emerged as the industry standard for describing RESTful services. By providing a machine-readable description of your endpoints, OpenAPI enables a rich ecosystem of tools such as Scalar UI , which transforms raw JSON of an OpenAPI docume