The document summarizes the state of open APIs in 2010. Some key points include: - Open APIs have grown rapidly in recent years, with over 2,400 APIs listed by 2010 compared to just 105 in 2000. Growth has accelerated. - Successful APIs have a business model baked in, are easy to adopt, and provide good developer support. Common models include pay-per-use, affiliate marketing, and software as a service. - REST has become more popular than SOAP due to its simplicity. JSON is also growing as an alternative to XML. - Major tech companies are increasingly dependent on APIs, with billions of API calls per day powering services like Facebook and Amazon.

1. Open APIs: State of the Market John Musser, ProgrammableWeb @johnmusser Cloudstock, December 6 th , 2010

2. Introduction ProgrammableWeb.com API & mashup directory News, community, dev tools 2,400 Web APIs 5,300 mashups

3. Open APIs: State of the Market The big picture The business of open APIs Design and technology Trends

4. Open APIs: Why bother? Make money 60% of all listings on eBay.com added via their APIs Save money SmugMug saves > $500K/year with Amazon S3 Storage Build brand Google Maps 300% growth vs 20% MapQuest Move to the cloud Over 50% of all transactions via their API Go anywhere Netflix now available on over 200 devices

5. Open API timeline 2000 2002 2005 2006 2007 105 APIs 352 APIs 2003 2008 1,116 APIs 601 APIs It took 8 years to get to 1,000 APIs, but only 18 months to get to 2,000 APIs 2010 has a 2x increase in new APIs per month over last year 2009 1,628 APIs 2010 ? APIs

6. APIs: Some very competitive markets Based on directory of 2,300 web APIs listed at ProgrammableWeb, November 2010

7. Open APIs: Sampling growth by sector

8. Open APIs: Sampling growth by sector YouTube sells for $1.7B

9. Open APIs: Sampling growth by sector Facebook opens platform

10. Open APIs: State of the Market The big picture The business of open APIs Design and technology Trends

11. What makes an open API successful? The underlying service Or, a good API on a bad service is lipstick on a pig A plan and a business model Simple, open, easily adopted Providing choices Good developer support

12. 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

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

14. API Billionaires Club 5 billion API calls / day (April 2010) 1.1 billion API-delivered stories / month (March 2010) 5 billion API calls / day (October 2009) 8 billion API calls / month (Q3 2009) 3 billion API calls / month (March 2009) 3 billion API calls / day, 75% of all traffic (April 2010) Over 50% of all traffic via API (March 2008) Over 100 billion objects stored in S3 (March 2010)

15. Open APIs: State of the Market The big picture The business of open APIs Design and technology Trends

16. The big technical debates Protocols and styles REST vs. SOAP vs. … Data formats XML vs. JSON vs. … Standards So many to choose from…

17. REST vs. SOAP: Simplicity wins again Distribution of API protocols and styles Based on directory of 2,300 web APIs listed at ProgrammableWeb, November 2010

18. REST vs. SOAP, more of both, but a lot more REST Total number of APIs based on protocol and style Based on directory of 2,300 web APIs listed at ProgrammableWeb, November 2010

19. 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

20. JSON Rising: 45% of all new APIs support JSON Percentage of new APIs with JSON support 197 APIs are now JSON-only, including Facebook Graph, Etsy, and Twitter’s Streaming API Based on directory of 2,300 web APIs listed at ProgrammableWeb, November 2010

21. OAuth picking up steam 20% of all “Social” APIs now with OAuth support 120+ APIs with OAuth support

22. Open APIs: State of the Market The big picture The business of open APIs Design and technology Trends

23. APIs growing up: versioning & other best practices Old Twitter http://twitter.com/users/show/noradio.xml New Twitter http://api.twitter.com/1/users/show/noradio.xml

24. APIs growing up: keeping developers informed

25. APIs growing up: keeping developers informed http://www.programmableweb.com/api/ebay/status

26. API monitoring: don’t let this happen to you via http://monitor.programmableweb.com …

27. APIs are the glue of SaaS Internal Apps & Systems Customize Integrate API Internal App: web/desktop Traditional Platform Customize Integrate API SaaS App SaaS Service Firewall

28. SLAs and Premium Support for APIs Service Level Agreements and Premium Support Google Maps Premier (starts at $10K/yr) Amazon’s new Premium Support packages

29. 1 API can support 100’s of devices Source: Michael Hart, Netflix

30. Mobile explosion is driving API explosion Source: NPR Pageview growth: NPR.org vs NPR mobile

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

32. Invisible Mashups, part 1 Classic mashup HousingMaps.com Invisible mashup Ooyala.com EC2 + S3 + SQS +

33. Invisible Mashups, part 2 + APIs are hiding in plain sight, if you know where to look

34. 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?

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