Quotes from NPR: NPR API is Live on NPR.org (via PaidContent):

As referenced in yesterday’s post, we launched our new API today. To find the API, you can either go directly to http://www.npr.org/api/ or you can follow the new link called “Tools / API” on the NPR.org left nav under the Services section.

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There were quite a few questions that we addressed when developing the API, but one thing that was not really in question was the need to open as much of our content as possible. As a result, almost everything that you can find on NPR.org that we have the rights to redistribute is available through the API. This includes audio, images, full text, etc. That said, there are elements, series and programs that we could not offer due to rights restrictions.