ASP.NET Web API which wraps Autotask (AT) SOAP API. It helps developers use the Web API from any client (HTML5 web app, AngularJS web app, desktop client and so forth). It is RESTful.
Examples of Usage and other info is available here.
Two prominent namespaces used are
AutotaskWebAPI.Autotask.Net.Webservices;
System.Web.Http;
Namespace AutotaskWebAPI.Autotask.Net.Webservices refers to AT Web Services. Please check the VS solutions demonstrating .NET code to query SOAP based AT API.
All you need is two keys in appSettings (web.config) with values as per your Autotask® Account.
<add key="APIUsername" value="" />
<add key="APIPassword" value="" />
If the configuration is not set correctly, you can still use the API by sending a basic scheme authorization header with every request.