Can we use Web API with ASP.NET Web Form?

Answer 1

Yes, ASP.NET Web API is bundled with ASP.NET MVC framework but still it can be used with ASP.NET Web Form.
It can be done in three simple steps as follows:

1. Create a Web API Controller. Add a routing table to
2. Application_Start method of Global.asax. Make a jQuery AJAX Call to
3. Web API method and get data.