1. The document discusses the state of the market for open APIs and semantic web technologies. It notes that REST has become the dominant API design approach over SOAP. JSON support is growing and has surpassed XML for new APIs. 2. While there are over 3,300 APIs tracked, semantic API adoption remains low with only 1% of APIs supporting RDF. The growth of invisible APIs and APIs as products is also discussed. 3. Key trends include the rise of APIs as core products and business models, with some companies abandoning websites in favor of monetizing their APIs. Developer ecosystem cultivation and support is also cited as important for API success.

1. Open APIs & the Semantic Web: State of the Market John Musser, ProgrammableWeb @johnmusser SemTech 2011

5. Open APIs: Growth is accelerating Total APIs over time

6. Open APIs: Growth is accelerating Total APIs over time

7. Open APIs: Growth is accelerating Total APIs over time

8. Open APIs: Growth is accelerating Total APIs over time

9. APIs: some very competitive markets Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011 Number of APIs, Top 15 Categories

10. Semantic APIs on the open web

11. Where’s the semantic web in here? Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

14. API business models Best practice: Bake your business model into your API Who What How Amazon Associates Retail Affiliate Model Amazon S3 Infrastructure Pay-as-you-go eBay Auctions APIs for listings Exact Target Bulk Email Tiered pricing Rhapsody Music Partnerships Salesforce.com CRM / SFA SaaS per-seat licenses

15. APIs as biz-dev enabler (aka Bizdev 2.0) “ Decentralized business development” -Toni Schneider Consumer/Hacker Business/Partner Flickr API

16. API Billionaires Club, 2011 edition 5 billion API calls / day (April 2010) 1.6 billion API-delivered stories / month (October 2010) 5 billion API calls / day (October 2009) 8 billion API calls / month (Q3 2009) 3 billion API calls / month (March 2009) 13 billion API calls / day (May 2011) Over 260 billion objects stored in S3 (January 2011) 10 billion API calls / month (January 2011)

19. REST vs. SOAP: Simplicity wins again Distribution of API protocols and styles Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

20. REST vs. SOAP: Simplicity wins again Distribution of API protocols and styles Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

21. Data formats: lots of choices XML, JSON, RSS, Atom, YAML, iCalendar, CSV, Serialized PHP, HTML, PNG, GeoRSS, vCard, Text, RDF, OPML, MediaRSS, VML, TV-Anytime, hCalendar, FOAF, XSPF, SQL, GML, CDF

22. JSON Rising: 55% of all new APIs support JSON Percentage of new APIs with JSON support Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

23. 20% of all new APIs support only JSON Percentage of new APIs with only JSON support Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

24. 1 in every 5 new APIs says “ goodbye XML ” Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011 Percentage of APIs with XML support

25. But only 1% of APIs offer RDF support Based on directory of 3,200 web APIs listed at ProgrammableWeb, May 2011

28. API as Product When an API is not an extension of your product, but it is your product

29. Screw the web site, let’s focus on the API Qwerly shutters profile pages in favor of lucrative ‘DNS for people’ API TechCrunch, May 5, 2011

30. API business models, circa 2005

31. API business models 2011

32. Invisible Mashups Classic mashup HousingMaps.com Invisible mashup Ooyala.com EC2 + S3 + SQS +

33. Invisible APIs + APIs are hiding in plain sight, if you know where to look

34. Invisible APIs, the Steve Jobs edition Twitter Integrated right into iOS 5

35. Have we seen this before? 1995 Why do we need a Web site? 2000 2005 2010 Of course we have a Web site Of course we have an API Why do we need an API?

36. thank you Questions, ideas, comments? Email me: john@programmableweb.com Twitter: @programmableweb @johnmusser