In ASP.NET WebAPI, I know you can set the default json formatter to use camel case using CamelCasePropertyNamesContractResolver() in the global.aspx which will force ALL jso
Yes, it's possible...you can use IControllerConfiguration to define per-controller specific configuration..
IControllerConfiguration
This is a sample which describes this scenario. You can quickly take a look at how this interface should be used over here(from the sample).