ProgrammableWeb: the world's largest API repository, GROWING DAILY

Filter APIs
API Name Category Date
Amazon Marketplace Web Service
eCommerce 08.04.2010
iTunes and iTunes Connect
Other 03.20.2010
DonorsChoose
Education 03.27.2009
OpenLayers
Mapping 07.09.2006
Rhapsody
Music 02.14.2006
Reddit
News Services 11.24.2008
Photobucket
Photos 04.29.2008
Google Contacts
Other 03.05.2008
Basecamp
Project Management 03.29.2006
Smugmug
Photos 11.01.2005
MapLarge
Mapping 12.17.2010
Dropbox
Storage 08.04.2010
Google Maps Elevation
Mapping 03.25.2010
SendGrid
Email 08.11.2009
New York Times Article Search
News Services 02.04.2009
MailChimp
Email 12.21.2007
USPS Track & Confirm
Shipping 12.06.2005
Google Gmail OAuth
Email 03.31.2010
Google Books
Reference 09.29.2008
OpenSecrets
Government 08.21.2008
Google Webmaster Tools
06.24.2008
Compete
Statistics 02.26.2007
CNET
eCommerce 02.01.2007
Alexa Web Information Service
Search 08.03.2006
Kayak
Travel 01.10.2006
NOAA National Weather Service (NWS)
Weather 09.08.2005
Hoiio Voice
Telephony 08.18.2011
Grooveshark
Music 06.30.2010
CityGrid
eCommerce 03.06.2010
ESRI ArcGIS JavaScript
Mapping 07.13.2008
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
AddThis Menu
Bookmarks 12.05.2009
uClassify
Tools 10.05.2008
Simply Hired Jobs
Jobs 07.24.2008
Fire Eagle
Social 03.04.2008
Yahoo Related Suggestions
Search 03.10.2006
MapQuest
Mapping 03.07.2006
Amazon Mechanical Turk
Other 01.22.2006
UPS Shipping
Shipping 09.04.2005
Rovi Cloud Services
Entertainment 02.28.2011
Nexmo Wholesale SMS
Messaging 01.10.2011
Google Latitude
Mapping 05.21.2010
Yahoo Weather
Weather 07.16.2009
Google OpenID
Security 05.14.2009
Guardian
News Services 03.10.2009
GitHub
Tools 02.23.2009
Goodreads
Other 10.09.2008
CrunchBase
Reference 07.16.2008
COLOURlovers
Tools 04.20.2008
Disqus
Blogging 01.27.2008
Amazon SimpleDB
Database 12.16.2007
Discogs
Music 08.27.2007
Yahoo Mail
Email 03.28.2007
Google Single SignOn
Security 02.23.2007
Trulia
Real Estate 02.21.2007
Vast
Search 03.15.2006
Google Drive
Storage 04.24.2012
Google Street View Image
Photos 03.21.2012
Twitter Streaming
Social 12.17.2010
Klout
Analytics 04.14.2009
Weather Underground (Wunderground)
Weather 04.02.2009
Daylife
News Services 08.08.2007
Seatwave
Entertainment 02.24.2012
Pinterest
Social 02.09.2012
Ordr.in
Food 09.29.2011
Hoiio SMS
Messaging 08.13.2011
8coupons
eCommerce 12.03.2010
Your Mapper
Mapping 08.15.2009
GetGlue
Social 05.30.2009
What The Trend?
Social 03.27.2009
ShareThis
Social 03.05.2009
CloudMade
Mapping 02.16.2009
Kiva
Financial 02.03.2009
Best Buy BBYOpen Products
eCommerce 10.24.2008
Evernote
Personal Information Management 10.08.2008
Meetup
Social 07.10.2008
SlideShare
Office 07.26.2007
Jaduka
Telephony 03.10.2007
Yahoo Site Explorer
SEO 02.01.2007
Google Client Authentication
Security 11.05.2006
Revver
Video 10.22.2006
Cafe Press
eCommerce 03.06.2006
23
Photos 02.13.2006
Yahoo Travel
Travel 12.21.2005
Magento
eCommerce 01.13.2011
The Movie DB
Entertainment 06.16.2010
Google Font
Other 05.21.2010
World Weather Online
Weather 02.03.2010
Walk Score
Real Estate 12.29.2009
ChartLyrics Lyric
Music 12.29.2009
Amazon RDS Relational Database Service
Database 10.27.2009
WatchMouse
Monitoring 09.22.2009
New York Times Congress
Government 01.08.2009
Janrain Engage
Security 12.24.2008