Which web applications serve JSONP?

Question

It'd be interesting to know who serves JSONP. If you know of a site that does (well-known applications are preferred (e.g., GMail, Facebook, Adsense)), please add it as an answer along with a reference.

APIs supporting JSONP:

• Flickr API - Default callback is "jsonFlickrApi", user defined callback is supported.
• Google Data APIs - User defined callback.
• Twitter API - User defined callback.
• Yahoo Data APIs - User defined callback.

Answer 1

Application making use of JSONP are listed in Wikipedia at http://en.wikipedia.org/wiki/JSON#JSONP

Answer 2

There are a number of sites which serve up JSONP. To the uninitiated, JSONP is just a JSON response wrapped in a callback. This way the JSON response can be loaded in a script tag to avoid same origin policy restrictions.

A short list of APIs which support a JSON wrapped in a javascript callback are as follows. There are likely more.

• Flickr API
• Google Data APIs
• Twitter API
• Yahoo Data APIs