web api start html page

I have web api project and I have *.html page and I need run it after run my project but I don't know how do it. In MVC I use MapRoute like this:

  routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );

But I don't know how do it in web api. I have next routes config:

config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{action}/{id}", new { id = RouteParameter.Optional });

and how to add other config for run my html page? Thanks.

via Chebli Mohamed