method to peek at registered api urls in autofac register controllers

Question

In attempt to debug api endpoint hit, the only information I am getting via postman is 404 with message file or directory does not exist on the server (IIS by the way).

I wish there is a way to peek at registered endpoints via Autofac register controllers. It is part of the ContainerBuilder with code such as:

builder.RegisterApiControllers(this.GetType().Assembly).AsSelf<object>();