NPR has released an API, providing developers with access to their archive of 250,000 articles. Some restrictions apply:

The API currently only includes stories from programs that can be found as part of the archive. This currently excludes stories from other NPR programs, such as The Diane Rehm Show, Radio Labs, Fresh Air and Car Talk. Other non-NPR public radio programs, such as This American Life, Marketplace, and A Prairie Home Companion, are also not included in this offering.