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API Name Category Date
Google Maps
Mapping 12.05.2005
Twitter
Social 12.08.2006
YouTube
Video 02.08.2006
Flickr
Photos 09.04.2005
Amazon Product Advertising
eCommerce 12.02.2005
Facebook
Social 08.16.2006
Twilio
Telephony 01.09.2009
Last.fm
Music 10.30.2005
eBay
Search 12.05.2005
Twilio SMS
Messaging 02.19.2010
del.icio.us
Bookmarks 10.30.2005
foursquare
Social 09.10.2009
Google Homepage
Widgets 12.14.2005
Amazon S3
Storage 03.14.2006
GeoNames
Reference 01.12.2006
DocuSign Enterprise
Enterprise 03.29.2008
Wikipedia
Reference 09.05.2008
Google AdSense
Advertising 06.01.2006
Amazon EC2
08.25.2006
Bing
Search 06.04.2009
Yahoo BOSS
Search 07.10.2008
Shopping.com
eCommerce 01.30.2006
LinkedIn
Social 12.10.2007
Google Analytics
Analytics 04.21.2009
Yahoo Local Search
Search 11.12.2005
Eventful
Events 10.31.2005
Google Ajax Feeds
Feeds 04.20.2007
Salesforce.com
Enterprise 11.09.2005
Google Translate
Translation 08.20.2007
indeed
Jobs 09.04.2005
Google AdWords
Advertising 01.22.2006
Concur
Enterprise 03.02.2012
Bit.ly
URL Shortener 07.13.2008
Google Custom Search
Search 07.08.2007
Google Picasa
Photos 03.23.2007
Commission Junction
eCommerce 09.23.2006
MusicBrainz
Music 07.16.2006
PayPal
Payments 09.04.2005
Microsoft Bing
Search 01.23.2006
Yahoo Term Extraction
Search 11.12.2005
Google Geocoding
Mapping 12.08.2010
Blogger
Blogging 02.08.2006
FeedBurner
Blogging 02.15.2006
FriendFeed
Other 03.25.2008
Oodle
eCommerce 09.01.2007
Bing Maps
Mapping 06.09.2009
TwitPic
Photos 01.08.2009
Zillow
Real Estate 10.26.2006
SoundCloud
Music 07.10.2008
Yahoo Answers
Q&A 08.16.2006
BBC
Media 10.29.2005
Spotify Metadata
Music 02.03.2010
Shopzilla
eCommerce 01.04.2008
Lyricsfly
Music 01.02.2008
LyricWiki
Music 03.16.2008
Tumblr
Social 02.10.2008
MySpace
Social 12.31.2007
Netflix
Video 09.30.2008
Echo Nest
Music 09.20.2008
OpenStreetMap
Mapping 12.28.2005
Weather Channel
Weather 08.05.2007
WeatherBug
Weather 01.13.2006
Google Places
Mapping 05.20.2010
Google Fusion Tables
Database 12.15.2009
Tropo
Telephony 08.29.2009
Sunlight Labs Congress
Government 02.27.2007
Yahoo Traffic
Transportation 11.12.2005
Yahoo Query Language
Database 12.05.2008
Google Spreadsheets
Office 12.02.2006
FedEx
Shipping 09.04.2005
Heroku
Cloud 03.27.2010
Calais
Other 01.31.2008
Netvibes
Widgets 11.05.2006
SeeqPod
Music 11.04.2006
Amazon Marketplace Web Service
eCommerce 08.04.2010
Rhapsody
Music 02.14.2006
Photobucket
Photos 04.29.2008
Google Contacts
Other 03.05.2008
Smugmug
Photos 11.01.2005
MapLarge
Mapping 12.17.2010
Google Maps Elevation
Mapping 03.25.2010
SendGrid
Email 08.11.2009
MailChimp
Email 12.21.2007
USPS Track & Confirm
Shipping 12.06.2005
OpenSecrets
Government 08.21.2008
Google Webmaster Tools
06.24.2008
Compete
Statistics 02.26.2007
CNET
eCommerce 02.01.2007
NOAA National Weather Service (NWS)
Weather 09.08.2005
CityGrid
eCommerce 03.06.2010
GovTrack.us
Government 07.03.2008
Multimap
Mapping 03.23.2007
Google Checkout
eCommerce 08.31.2006
Zvents
Events 02.07.2006
Yahoo Map Image
Mapping 11.19.2005
Groupon
eCommerce 04.06.2010
Forvo
Reference 03.24.2010
uClassify
Tools 10.05.2008
Simply Hired Jobs
Jobs 07.24.2008
Fire Eagle
Social 03.04.2008