Api.cs

// install-package httphelper -pre
// install-package simplejson

#define SIMPLE_JSON_DYNAMIC

public static object Get(string url)
{
    var httpHelper = new HttpHelper(url);

    using (var stream = httpHelper.OpenRead())
    {
        using (var reader = new StreamReader(stream))
        {
            var json = reader.ReadToEnd();
            return SimpleJson.DeserializeObject(json);
        }
    }
}

Sample.cs

dynamic result = Get("https://api.github.com/repos");
var id = result.id