The Diffbot Java SDK by Pierre-Denis Vanduynslager offers a client for that supports multiple HTTP implementation, JSON parser, and several Diffbot APIs: Article API, Frontpage API, Image API, Product API and Classifier API.
Captricity, dedicated to transforming data trapped on paper into digital form, announced the public release of its API. Originally, customers accessed Captricity's technology via a web portal. In August, Captricity launched a beta API. Over the past few months, Captricity enhanced its API under the Code for America Accelerator program (one of seven startups to qualify for the honor). Captricity announced the API's public availability at Code for America's Demo Day.
Feedly, one of the most popular alternatives to the defunct Google Reader, has just announced that the Feedly API is now open to all developers. Last month, Feedly kicked off a paid subscription service, Feedly Pro, offering the first 5,000 subscribers a lifetime subscription for $99.99. Feedly raised almost $500,000 within the first eight hours.