When launching the API at OSCON in 2008, NPR targeted four audiences: the open source community; NPR member stations; NPR partners and vendors; and finally our internal developers and product managers. In its short two-year life, the NPR API has grown tremendously, from only a few hundred thousand requests per month to more than 60M. The API, furthermore, has enabled tremendous growth for NPR in the mobile space while facilitating more than 100% growth in total page views in the last year.

3. Page View Growth: NPR.org vs. NPR Mobile NPR News iPhone app NPR News Android app Relaunched NPR mobile site NPR iPad app NPR Music iPhone app API launched in 2008, at OSCON

5. System Architecture Supporting COPE

6. System Architecture Supporting COPE

7. System Architecture Supporting COPE Java JSP Struts

8. System Architecture Supporting COPE R / W MySQL

9. System Architecture Supporting COPE R / O MySQL Cluster NoSQL-like XML Repository

10. System Architecture Supporting COPE PHP5 SimpleXML PHP5

11. Distribution of API Usage by Application PLAYLIST API

12. Distribution of API Usage by Application Raw data and content is stored in the normalized databases and is made available to APIs through the flattened Infrastructural API.

13. Distribution of API Usage by Application Core APIs contain the clean API content, closely resembling the data model. PLAYLIST API

14. PLAYLIST API Distribution of API Usage by Application Wrapper APIs are custom-built interfaces that serve the needs of a given presentation layer. The wrappers can transform API content, pull from multiple APIs and tailor the queries to the abilities of the calling application.

15. Distribution of API Usage by Application PLAYLIST API Presentation applications can take advantage of the Core APIs directly or they can have a custom Wrapper API built, depending on the needs of the application.

16. Inside the Black Box of the API

19. Lifecycle of an NPR story COPE in the wild

20. NPR CMS

21. NPR API

22. NPR.org

23. NPR iPad/Tablet Site

24. NPR.org Audio Player

25. NPR iPhone App

26. NPR Mobile Site

27. NPR Android App

28. NPR Addict iPhone App

29. NewsMap

30. Google Chrome Extension

31. iGoogle Gadget

32. KQED.org

33. NorthCountryPublicRadio.org

34. KPCC.org

35. WBUR.org

36. Metrics

37. NPR Story API : Requests per Month - About 20 requests to the Story API every second

38. - NPR API delivers almost 400 stories every second Slide provided by John Musser of ProgrammableWeb

39. API Keys and Consumption by Audience

41. Output Format Distribution This distribution chart is from June 2009 and does not include NPR consumption. We believe the distribution still applies today.

42. NPR API : Non-NPRML Output Format Growth

43. Writable Story API Station/Partner Ingest

44. Station Content in the NPR API (today)

45. KLCC Displaying N3 Stories from NPR API

46. WBUR Displaying N3 Story from NPR API

47. Public Media API (future)

48. API Enables Mobile Growth…

49. Mobile

50. The NPR API Powers Mobile Products

51. The Numbers

52. Different Modes of Development

53. Why Open Source?

55. Why Android?

56. Our Project

60. NPR News 2.0 for Android

61. Join Our Community @nprandroid