/Photopia.Web/Controllers/HomeController.cs

using System.Collections.Generic;
using System.Linq;
using System.Web.Http;
using System.Web.Http.Description;
using System.Web.Mvc;
using System.Xml.Linq;

namespace Photopia.Web.Controllers
{
    public class ApiListViewModel
    {
        public string Name { get; set; }
        public IEnumerable<ApiDescription> ApiDescriptions { get; set; }
    }

    public class ApiDocumentation
    {
        public string Description { get; set; }
        public string JsonResponse { get; set; }
        public string HttpMethod { get; set; }
        public string Url { get; set; }

    }

    public class ApiParameter
    {
        public string Name { get; set; }
        public string Description { get; set; }
        public string Example { get; set; }
    }

    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            XDocument doc = XDocument.Load(Server.MapPath("~/App_Data/ApiDoc.xml"));

            IEnumerable<XElement> memberElements = doc.Descendants("members").Descendants("member")
                .Where(x => x.Attribute("name").Value.StartsWith("M:") &&
                            x.Attribute("name").Value.ToLowerInvariant().Contains("api")).ToList();


            IApiExplorer apiExplorer = GlobalConfiguration.Configuration.Services.GetApiExplorer();

            var groupedApiDescriptions = from a in apiExplorer.ApiDescriptions
                                         group a by a.ActionDescriptor.ControllerDescriptor.ControllerName
                                         into g
                                         select new ApiListViewModel {Name = g.Key, ApiDescriptions = g};


            foreach (var member in memberElements)
            {
                var vv = member.Attribute("name").Value;
                string ss = "fs";
            }

            foreach (var g in groupedApiDescriptions)
            {
                foreach (var desc in g.ApiDescriptions)
                {
                    var actionName = ((System.Web.Http.Controllers.ReflectedHttpActionDescriptor)(desc.ActionDescriptor)).MethodInfo.Name;

                    var fullName = desc.ActionDescriptor.ControllerDescriptor.ControllerType.FullName;

                    
                    string selector = string.Format("M:{0}.{1}", fullName, actionName).ToLower();

                    XElement xElement = memberElements.Where(x => x.Attribute("name").Value.ToLower().Contains(selector)).FirstOrDefault();
                }
            }

            return View(groupedApiDescriptions.ToList());

            //http://blogs.msdn.com/b/yaohuang1/archive/2012/05/21/asp-net-web-api-generating-a-web-api-help-page-using-apiexplorer.aspx
            return View();
        }

        public ActionResult UploadImage()
        {
            return View();
        }
    }
}