Web Services Directory

Viewing 1 to 243 of 243 APIs
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APIDescriptionCategoryMashups
TwitterMicroblogging serviceSocial799     
YouTubeVideo sharing and searchVideo686     
Last.fmOnline radio serviceMusic242     
Microsoft Bing MapsMapping servicesMapping174     
411SyncSMS, WAP, and email messagingMessaging121     
GeoNamesGeographic name and postal code lookupReference89     
Google CalendarCalendar serviceCalendar43     
Google PicasaPhoto management and sharing servicePhotos36     
FriendFeedActivity stream aggregatorOther33     
Bing MapsMicrosoft online mapping serviceMapping29     
Yahoo AnswersCommunity driven reference serviceAnswers29     
NetflixMovie rental serviceVideo24     
Yahoo TrafficTraffic data and routingTransportation20     
Yahoo Query LanguageQuery language platform for Yahoo servicesDatabase19     
DonorsChooseAn online charity connecting you to classrooms in needEducation16     
Google ContactsContact list managementOther15     
Google Documents ListDocument management servicesOffice14     
ZventsLocal events search and communityEvents12     
Fire EagleGeo location sharing serviceSocial11     
MapQuestOnline mapping serviceMapping11     
GoodreadsBook search and social book servicesOther9     
Google BuzzSocial sharing serviceSocial9     
Yahoo WeatherWeather data serviceWeather9     
MeetupSocial events serviceSocial8     
What The Trend?Twitter trending serviceSocial8     
Your Mapper Local Geodata For Your AppsMapping8     
FindoryPersonalized news aggregationNews7     
FotoliaRoyalty free stock photosPhotos7     
Yahoo MusicMusic and musician info and videosMusic7     
BBC MusicMusic information serviceMusic6     
Grouper VideoVideo sharing serviceMedia Management6     
NPRUS National Public Radio News5     
WidgetboxCreate and distribute your widget through the world's largest widget galleryWidgets5     
Blip.tvVideo upload and sharing serviceVideo4     
FlightStatsLive flight aircraft and delays trackingTravel4     
GruvrLive music and concert informationMusic4     
NewsGatorFeed aggregationFeeds4     
GeographBritish Isles photo servicePhotos3     
GeoIQGeo Data, Visualization, and AnalysisMapping3     
HowcastHow-to video search serviceVideo3     
KulerAdobe web service for creating color themesOther3     
MotorsportReg.comMotorsports events and calendar serviceSports3     
ProgrammableWebAPI for APIsInternet3     
Active.comActive lifestyle community databaseSports2     
BlekkoSearch engineSearch2     
FAROOWeb search engineSearch2     
FeedzillaNews feed aggregatorFeeds2     
MobivitySMS marketing messaging serviceMessaging2     
PrimalInterest Graph data and content filteringSearch2     
ProducteevMulti-task collaboration tool Tools2     
Reuters SpotlightReuters.com content serviceNews2     
SnaprReal-time geosocial photosharing servicePhotos2     
SporeSpore game database and contentGames2     
WorldCat SearchLibrary data accessReference2     
All for GoodFind and share volunteer opportunities Other1     
BARTTransit tracking service for San Francisco, CaliforniaTransportation1     
Deal MagicList of Daily Deals Shopping1     
GeoGratisGeographic data and mapping serviceMapping1     
Google ProvisioningUser provisioning for Google AppsEnterprise1     
Google SidewikiAccess to Google Sidewiki contentInternet1     
Groups Near YouLocal groups search serviceSocial1     
idiomagMusical artist information serviceMusic1     
KwwikaReal-time push notifications and messaging serviceInternet1     
Let's Be TrendsTrend tracking on TwitterSocial1     
MediohVideo search serviceVideo1     
OrbDigital media remote access and managementMedia Management1     
PachubeRealtime device and buildings monitoring Other1     
PostRank Data MiningFeed and story retrieval and analysisInternet1     
SHOUTcast RadioInternet radio database serviceReference1     
SnappyFingers Question and answer search engineSearch1     
SongzaMusic popularity and user playlist servicesMusic1     
SpraciEvents and clubs databaseEvents1     
This Is My JamMusic recommendation and sharing serviceMusic1     
Tweet ScanTwitter and identi.ca search results serviceSearch1     
VideodetectiveFilm trailers, cast, images, and related informationVideo1     
WookmarkImage collection and sharing serviceSocial1     
Acrostic.me TrendingBible poetry feed serviceFeeds0     
AddThis Content FeedsFeed creation service for popular contentFeeds0     
AdhocracyGerman group decision-making platformSocial0     
AdocuSingle word microblogging serviceBlogging0     
Agent StormReal Estate systems connectionReal Estate0     
AirNowNorth American air quality information serviceWeather0     
Amnesty InternationalDatabase of censored sites and dataOther0     
AniDBAnime information databaseEntertainment0     
AudiobabaMusic search and recommendation engineMusic0     
BaconfileWeb based file storage interface for Amazon s3Storage0     
BentioMicroblogging ServiceBlogging0     
Berlin Open DataBerlin data and informationGovernment0     
BetaSignalNews aggregatorFeeds0     
Bitacoras.comSpanish social blog networkBlogging0     
BlastCasta FeedRSS feed management and filtering serviceFeeds0     
BlellowMicroblogging platform and social networkSocial0     
BlockChalkLocal community social spaceSocial0     
BluyahData transformation serviceTools0     
Bounce MixedResultsSearch engine results compilerSearch0     
BoxeeMedia center serviceVideo0     
BoxohPackage tracking serviceShipping0     
BreezieeFile Selling ServiceShopping0     
Bulletin MessengerSMS Service ProviderMessaging0     
CatalogWSAcademic libraryReference0     
Centers for Disease Control (CDC) Content SyndicationHealth information content syndication serviceMedical0     
Cerego iKnowSocial cognitive learning serviceOther0     
Christian Social GraphChristian volunteer opportunities directorySearch0     
ChristianChirpChristian social networking serviceSocial0     
CiteULikeCitation management serviceReference0     
Civic Commons MarketplaceOpen government data database and sharing platformGovernment0     
CivicboomNews crowdsourcing platformNews0     
cnFOLChinese microblogging serviceBlogging0     
CogenzSocial bookmarking serviceBookmarks0     
Colr.org Color and color scheme serviceOther0     
Crosspollinate Content MarketingCustom content marketing feedsFeeds0     
CS50Harvard campus informationEducation0     
CS50 HarvardEventsHarvard Events CalendarEvents0     
DataSiftReal-Time Social Data MiningSocial0     
Daum Context KeywordContextual keyword extraction serviceTools0     
Daum EventsMovie and festival search serviceEvents0     
Daum SearchSearch servicesSearch0     
DealiniumLocal deals aggregation serviceShopping0     
DestakesPortuguese news aggregatorNews0     
DestindeTravel information serviceTravel0     
DFT.BA Link (URL) shortening serviceInternet0     
DigitaliserDanish social networking siteSocial0     
EasyEthicalEthical consumer guideShopping0     
eLifeBiological sciences journal access serviceScience0     
Environment Canterbury Regional Council MetroPublic transportation information for greater Christchurch areaTransportation0     
Europe PubMed CentralArticle database for biomedical and health researchersScience0     
Europeana OpenSearchEuropean museum collection metadataEducation0     
EventificationSocial Event SiteEvents0     
Exploring Surrey's pastSurrey County historical resourceReference0     
FeedbooksMobile book and RSS servicesTelephony0     
FeedzzRSS feed management and filtering serviceFeeds0     
FillbugQuery by example serviceReference0     
FiveFilters.orgContent extraction serviceTools0     
FlowReal-time information and data platformTools0     
ForSWORStar Wars gaming forumGames0     
Ghent University Academic BibliographyUniversity publication informationEducation0     
GoozexVideo game trading servicesGames0     
GroupMeSocial bookmarkingBookmarks0     
HackSenseH.A.C.K. website status monitoring serviceInternet0     
Harvard DashDigital repository of scholarly articlesEducation0     
Health and Human Services SyndicationSyndicated government health informationMedical0     
HotwireTravel deals and historical price data from Hotwire.comTravel0     
I'vReadSocial Reading RecordSocial0     
Interserve Job OpeningsMinistry jobs feed serviceFeeds0     
iOpenAt.comBusiness opening hoursRetail0     
Iowa Sex Offender RegistrySex offender look-up serviceGovernment0     
IsItBirthday Birthday Reminder ServiceCalendar0     
itDuzzit Cloud application integration serviceUtility0     
JawfishRSS/Atom feed widgetFeeds0     
Jiglu InsightWebsite content personalization platformInternet0     
JobMotelJob feeds serviceJob Search0     
JournalTOCsJournal search serviceSearch0     
KasabiData marketplaceReference0     
LifeDesksOnline science and taxonomy communityReference0     
LinkalopeTwitter link search serviceSearch0     
MagmaVideo directory and discovery serviceVideo0     
ManageBGL DiabetesDiabetes Management PlatformMedical0     
Map Data Services QuickMapData mapping serviceMapping0     
mapmeLocation mapping serviceSocial0     
MassDOT MBTAMassachusetts transit data feeds serviceTransportation0     
MbarEvent Information for the Mbar Café and Club Events0     
MetaWeblogBlog editing serviceBlogging0     
Metro MapperLouisville, Kentucky data mapsMapping0     
MicelloIndoor mapping serviceMapping0     
Muzu.tv DataMusic video web siteVideo0     
MyFantasyLeagueAmerican football statistics servicesSports0     
n0ticePublic notice boardNews0     
Nature.com BlogsNature Publishing Group blog tracking and indexing serviceBlogging0     
Nature.com OpenSearchScientific publication search serviceSearch0     
NCSU Libraries CatalogWSLibrary catalog and servicesReference0     
NetXposureDigital asset management softwareMedia Management0     
NewsCred PlatformNews syndication serviceNews0     
NewsKnowledgeNews and business information serviceNews0     
Newslookup.comNews search engine & news providerNews0     
Newsmonster.orgRSS feed aggregator serviceFeeds0     
Nigerian Stock ExchangeNigerian Stock Feed ServiceFeeds0     
nookedFeed management services for eCommerceShopping0     
NotchesDistributed user reviews serviceRecommendations0     
OCLC Virtual International Authority FileLibrary authority file serviceTagging0     
olpcMAPEducation technology mapping serviceMapping0     
ondi.ro GeocodingRomanian geocoding serviceMapping0     
Open Charge MapElectric vehicle charging point database.Reference0     
Open Data BadalonaBadalona city data servicesGovernment0     
OpenclipartFree clip art servicePhotos0     
Our Manna Daily VersesDaily bible versesReference0     
PATLiveHosted communications center integration serviceTelephony0     
PhreadzInformation feed creation serviceFeeds0     
Pin 'n' TagGeolocation information serviceMapping0     
PlayPhonePartner with Playphone to offer Mobile content in over 20 countries Music0     
PlingsPlaces and Activities DatabaseEntertainment0     
Prayer PlanetOnline prayer serviceSocial0     
Push ChannelsReal-time push serviceInternet0     
QuestsinThesaurus and answers lookup servicesAnswers0     
QuoquMicroblogging service for finance tradersFinancial0     
RatePubsPub and bar reviews servicesFood0     
Review TrackersReview monitoring service for businessesTools0     
RutgersUniversity campus and events information serviceEducation0     
Sapo Auto SearchAutomobile search serviceSearch0     
Sapo GamesGaming content feedsGames0     
Sapo TagsTag search serviceSearch0     
SciBiteDrug discovery information serviceMedical0     
SeeClickFixShare non-emergency problems in your neighborhoodGovernment0     
SemanticWireSemantic news reader serviceNews0     
SendMe MobileMobile entertainment serviceEntertainment0     
ServiceUEvent and donation management serviceEvents0     
ShopSenseOnline fashion search and shoppingShopping0     
SiteShuffleCustomizable website link list serviceInternet0     
SMS FreedomBulk text messaging serviceMessaging0     
SOAPBuilders InteropServer implementation update notification serviceInternet0     
Social WhaleTwitter service extensionsSocial0     
SocialightSocial communitySocial0     
Spinn3rBlog search index serviceBlog Search0     
SpongecellOnline calendar serviceCalendar0     
SpotzotDeal targeting and loyalty program serviceAdvertising0     
Stock Market DataStock market data serviceFinancial0     
SweetSpotDiabetes management serviceOther0     
TalisLinked Data hosting platformDatabase0     
The Oxford Celtic Coin IndexBritish coin collection images and dataEducation0     
to.uri.stTravel and tourist database servicesTravel0     
Tout LiveReal-time marketing serviceSocial0     
TravelopeTravel booking and comparison servicesTravel0     
tunesBagMusic storage, streaming, and sharingMusic0     
TxtBearDocument Publishing ServiceTools0     
UK BISUK government business support sectorGovernment0     
UnfuddleBug and issue trackingProject Management0     
UniProtProtein sequence and annotation servicesMedical0     
University of Oxford Systems StatusUniversity of Oxford IT services statusTools0     
UnivisionSpanish language content providerEntertainment0     
VidCasterVideo site creation platformVideo0     
Vodafone BetavineMobile web servicesMessaging0     
Washington State Department of TransportationWashington State traffic informationTransportation0     
WassrTwitter for SecondLife microblogging serviceBlogging0     
WellynewsWellington New Zealand news searchNews0     
WorkflowgenOnline workflow and process management serviceEnterprise0     
XtifyAndroid push notification serviceTelephony0     
XurrencyCurrency exchange ratesFinancial0     
YackTrackSocial media conversation tracking serviceSocial0     
Yandex Blog SearchBlog search serviceSearch0     
Yonda4Reading lists and recommendationsRecommendations0     
York University LibraryUniversity library data serviceReference0     
yourminisWidget PlatformWidgets0     
ZazlerWeb & mobile application backend-as-a-serviceBackend0     
ZetaPrintsWeb-to-print and imaging serviceTools0     
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APIs, mashups and code. Because the world's your programmable oyster.

John Musser
Founder, ProgrammableWeb

Adam DuVander
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.