We are currently doing final internal review of our API for synthetic website speed testing!
var harResponse = AppBeat.PageSpeed.API.RunTest(test.PublicId, test.Url, test.Location);
We have build entire infrastructure for this from grounds up in record time. We will provide multiple test locations and simple page for everyone to use.
Later we will provide special REST API for website speed testing and we will also integrate this functionality into AppBeat monitoring as free bonus.
Stay tuned :)