SCIM Server Implementation:

Running the app locally:

dotnet dev-certs https --trust - To trust the locally generated SSL certificate, so we can use HTTPS locally
dotnet watch run - To watch for file changes and recompile
dotnet run - To simply compile and run the app

Resources:

Building a REST API using ASP.NET Core Web API

SCIM 2.0 high level design

Azure AD SCIM Implementation