This is a Java API and command-line client for Campfire, the 37Signals chat application. Campfire utilizes vanilla XML/JSON over HTTP and returns Account, Rooms, Search, Messages and more. Campfire is like instant messaging, but designed exclusively for groups and allows you to save transcripts, share text, files, and code in real time.
With APIs becoming more and more prominent, a growing number of companies are finding success with API-only or API-centric offerings. So is building customer-facing applications a thing of the past? While there is good reason to believe that the trend toward API-focused companies will continue and even accelerate, there are still virtues to building end-to-end solutions.
The Facebook API saw huge changes in 2010 that moved the service away from being a closed network and towards being a more open community. The leading social network site must be doing something right on that front. Facebook was the third most popular service for use in new mashups last year, nearly doubling its total number in our directory.
Last year, Yelp introduced its completely new Yelp Fusion API. Since its introduction, Yelp has dedicated most of its resources on the new API, and encouraged developers to migrate to Fusion. Over that time period, Yelp has added new features, fixed bugs, and now signals the end of the legacy API.