Real estate mashups tap growing batch of APIs

Number of APIs rises 137% since 2008

NEW YORK — APIs, the programming tools for tech developers that can enhance websites and serve as building blocks for creative mashups, are on the rise, their volume erupting from an estimated 105 in 2005 to 2,647 in 2010.

And that trend has not been overlooked by the real estate industry, according to Adam DuVander, executive editor for, a site that offers news and resources for APIs and mashups. The site offers a database of about 2,000 open Web APIs (application programming interfaces).