Popular location-based social network Foursquare quietly made the long-teased new version of its API publicly available Tuesday. The changes, embraced by its developer community, include JSON-formatted responses and OAuth-only authentication. Even though the new API is characterized as in beta, the company has also deprecated the previous version, announcing it will no longer be available by the middle of next year.
Read-it-later service Instapaper has released what it's calling a "full API." With it, developers using the Instapaper API can create applications that both write to and read from the service. The full API is free to developers, but only paying users can read from their Instapaper account using third-party tools.