A while back I stumbled across Kimono Labs while looking for a web host. Kimono Labs is a site that allows you to setup and host your own web API with no experience of a language such as PHP and best of all you can use it free!
It’s simple, fast and elegant. Absolutely anybody could use it. All you have to do is install their Chrome Extension, visit a webpage and launch it. From here you can click on the data you’re interested in (or highlight it as if it were a text document) and it will generate a JSON response for that page.
Here is an example of me retrieving information of a user such as their status, username and blurb from their profile.
And here is an example of me retrieving a group shout.
As you’ll see anything wrapped in an anchor will have its URL included automatically, but you can disable this if required.
Right now they only offer a free plan, but in the future they’re looking to expand to allow users to take full advantage of what they’re offering.