The Semantria Python SDK by Lexalytics allows API interaction to access semantic web features. Sentiment analysis, keyword extraction, and word classification are some of the capabilities that developers can implement into applications.
Our API directory now includes 22 sentiment APIs. The newest is the Bitcoin Sentiment API. The most popular, in terms of mashups, is the Klout API. We list 7 Klout mashups. Below you'll find some more stats from the directory, including the entire list of sentiment APIs.
How far back do your newspaper's online archives go? The U.S. Library of Congress has a database of thousands of newspapers dating back to the 1800s. In the case of over 150 of the papers, there are also digitized, searchable pages. And it's all available via its new Chronicling America API (technical details at our Chronicling America API profile).
Expert System, a leading semantic technology company and developer of Cogito semantic technology, has announced the release of the Cogito Intelligence API which allows semantic processing and analysis functionality to be integrated with government, intelligence, law enforcement and other types of security software systems and applications.