The foursquare-api-client is a library that allows users to interact with the Foursquare API using Guzzle, a PHP HTTP client. Guzzle has been fully unit tested so that the library serves as a wrapper around the Guzzle core.
Since Bebo brought its Facebook Platform-compatible API out of closed beta a few weeks ago, as we reported in this post, the initial growth shows a steep curve from about 50 launch partner applications available before Jan 12th to 714 on Jan 26th.
Our API directory now includes 945 social APIs. The newest is the SmartBots API. The most popular, in terms of mashups, is the Twitter API. We list [num] Twitter mashups. Below you'll find some more stats from the directory, including the entire list of social APIs.
Many of the world's most successful technology companies have seen their fortunes bolstered by offering open APIs, but incidents last week involving Facebook and Spotify demonstrate that open APIs are not without risk, especially when enforcement of API usage policies is lax.