I can find sites which show how to graph CSV from a url fetch, but very few good charting sites which let you plug in a JSON url, specify the data keys, and go to a chart.
I have the competency to code my own, I have used google visualisation api, pygal and other methods. What interests me here, is not that I cannot chart my data: I'm interested how few alternatives seem to want to show their awesome, by letting you specify your own dataset as a URL.
I know the fully general case is hard to code for, but most JSON data heading to plot is either a list of lists, or a list of dicts, or a dict of list of dicts. There are only so many levels of introspection on the shape of the data required.
