I navigate the web using the Keyboard Navigation extension in Google Chrome, which is what is adding all the little labels you see in the screenshot above. Install the extension, and press comma. The labels will pop up, then you type whichever character(s) show next to the thing you want to "click" on, and off you go.
It's super-simple, and easier to use than I expected. Why don't you try it out on your own sites? You'll get a sense of how the web looks from where I'm standing :)
Once I have the access token, I add the Authorization header using ModHeader and it sends it on all requests to this API, so I can still use my HTML output handler and be logged in. It's useful for sending custom headers of all kinds for different tools, so I thought I'd mention it!