Web Services Directory

Viewing 1 to 459 of 459 APIs
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Google ChartChart creation serviceOther90     
Panoramiophoto upload site with organizer and geolocationPhotos50     
BBCMedia program information serviceMedia Management29     
Google VisualizationDisplay and visualization of structured dataOther29     
Google AJAX LanguageText translation serviceUtility26     
TryntTerm extraction serviceOther21     
DBpediaStructured query interface to WikipediaWiki18     
hostip.infoIP lookupInternet18     
RhapsodyOnline music servicesMusic16     
Google Maps ElevationGet elevation data for any locationMapping14     
NOAA National Weather Service (NWS)Weather forecast databaseWeather13     
COLOURloversNamed colors and color palette servicesTools10     
CrunchBaseDirectory of companies, people, and investors Reference10     
DapperService for API creationInternet10     
VastStructured web searchSearch10     
KivaPerson-to-person micro-lending serviceFinancial8     
Twick.itSocial Explanation EngineBlogging8     
What The Trend?Twitter trending serviceSocial8     
FindoryPersonalized news aggregationNews7     
Google FontWeb font serviceOther7     
Poly9 FreeEarth3D mapping serviceMapping7     
Google DirectionsDriving directions web serviceMapping6     
Grouper VideoVideo sharing serviceMedia Management6     
TinysongMusic sharing serviceMusic6     
Adobe on AIR Bus TourServices to track Adobe AIR product launchOther5     
Google Book Search Book ViewabilityBook searchSearch5     
WebThumbThumbnail image generation serviceInternet5     
SNOCAPDigital music marketplaceMusic4     
TwittervisionLocation based data for the Twitter serviceMessaging4     
Yes Broadcast DBRadio station search, now-playing, logs and chartsMusic4     
AOL PicturesOnline photo managementPhotos3     
Careerjet Job search serviceJob Search3     
GravatarOnline Avatar ServiceUtility3     
KulerAdobe web service for creating color themesOther3     
SimpleAPIWeb site thumbnail image creationInternet3     
SnipshotOnline photo editing servicePhotos3     
SplogSpotDatabase of spam blogsBlog Search3     
We Feel FineArt project that harvests feelings from blogsOther3     
ZeeMapsEmbedded maps and international geocodingMapping3     
12seconds.tv12-second videobloggingVideo2     
Autodesk FreewheelCAD model viewing, printing and collaborationOther2     
bLaugh ComicsOnline comic stripOther2     
Blogama (IPInfoDB)IP geolocation serviceInternet2     
Capitol WordsTrack words used by US government representativesGovernment2     
CarmaCarbon emissions dataOther2     
CollectaReal time search serviceSearch2     
FAROOWeb search engineSearch2     
Google Code SearchCode search serviceSearch2     
Google NotebookOnline notebook serviceUtility2     
Holidays ServiceHoliday dates lookup serviceReference2     
Microsoft MSDNTechnical reference libraryReference2     
Microsoft start.comPortal serviceWidgets2     
OmgiliSearch service for user generated contentSearch2     
PlunkerMulti-file snippet sharing serviceTools2     
SporeSpore game database and contentGames2     
TailrankBlog search and news aggregation serviceBlog Search2     
TinylinkURL shortening serviceInternet2     
TopicalizerDocument analysis serviceOther2     
USGS Elevation Query ServiceDetermine elevation based on latitude and longitudeMapping2     
Yahoo LiveLive video streaming serviceVideo2     
Are You Watching ThisAlgorithms identify in-progress, exciting sporting eventsSports1     
Bible GatewayBible lookup servicesOther1     
DBpedia SpotlightSemantic Text Annotation and DisambiguationReference1     
Deal MagicList of Daily Deals Shopping1     
EarthToolsWeb services for geographical informationTools1     
EPA Station CatalogEPA monitoring station information serviceScience1     
EPA Watershed SummaryEPA watershed information serviceScience1     
fanart.tv MusicMusic fan art repositoryMusic1     
FedSpending.orgDatabase of US government spendingGovernment1     
FeedMapBlog geo-codingBlog Search1     
GatekrashUK event listings serviceEvents1     
GeoAdminGeospatial and mapping serviceMapping1     
GeoGratisGeographic data and mapping serviceMapping1     
Idescat Population SearchPopulation searchSearch1     
LangIdLanguage identification serviceUtility1     
Let's Be TrendsTrend tracking on TwitterSocial1     
Living StonesBible lookup serviceOther1     
Open Patent ServicesEuropean Patent Office web servicesGovernment1     
OpenDOARAcademic research repositoryEducation1     
QurlURL redirection servicesInternet1     
Retro AvatarAvatar creatorUtility1     
SnappyFingers Question and answer search engineSearch1     
TweepSearchTwitter profile search servicesSocial1     
TweetARunGet access to your running records that have been recorded on TweetARunSocial1     
.NET Daily Fact.NET daily fact widgetInternet0     
5Min VideopediaInstructional video collectionVideo0     
Abundant AtomicClockAtomic timekeeping serviceTools0     
Abundant Barnes & Noble PriceBook price retrieval serviceShopping0     
Abundant DeadOrAliveCelebrity mortality status databaseEntertainment0     
Abundant World PopulationPopulation information servicePolitics0     
Activism Network CommunityOnline activism network and communityEvents0     
Alagad FortuneRandom phrase retrieval serviceEntertainment0     
Amnesty InternationalDatabase of censored sites and dataOther0     
AnnotQTLGene annotation by chromosomal regionScience0     
AppURLService to connect applications to HTTP URLsInternet0     
Bible.orgBible passage accessReference0     
BioDOMBioinformatics data XML converterScience0     
BioLabelerLibrary of Medicine text extractor and indexing engineMedical0     
BiologicalNetworksBiological pathways analysis and visualization serviceScience0     
bioNMFBiomedical data analysis serviceMedical0     
Birdseye MailTablet email applicationEmail0     
BistipTravel and purchase serviceTravel0     
BitcoinAverageBitcoin Information ServiceFinancial0     
BitsmashBitTorrent statistics serviceFile Sharing0     
Blippex FirehoseSearch engineSearch0     
BlockChalkLocal community social spaceSocial0     
BlogSpam.netDetection for Blog & Forum SPAMSecurity0     
BonsaiOnline digital graphics libraryMedia Management0     
Book GluttonConvert HTML to EPUBUtility0     
BraineosFlashcards and learning games serviceEducation0     
BulkSMSGlobal SMS messagingMessaging0     
Burning ManEvent databaseEvents0     
BuzzzyGoogle Buzz Search EngineSearch0     
California Race and Ethnic Population ProjectionsCalifornia race and ethnic population projection dataGovernment0     
Canada's Economic Action PlanInformation of Canadian government EAPGovernment0     
CBS Local OffersLocal Deals ListingsShopping0     
Center for Biological Sequence AnalysisBiological sequence and molecule analysis servicesScience0     
Cheeso's Looky Book ServiceSimple book searchSearch0     
Cheeso's Zipcode Lookup ServiceZip code look-up serviceTools0     
ChemBankBiomedical databaseMedical0     
China Cancer DatabaseChinese cancer information databaseMedical0     
ChristianChirpChristian social networking serviceSocial0     
ChromAChromatography-mass spectrometry alignment serviceScience0     
Chronicling AmericaArchive of US newspapersNews0     
CinemaTorrentsMovie Torrent SearchSearch0     
CityBikesBike sharing network information serviceTransportation0     
Civic FootprintPolitical geography lookup for IllinoisGovernment0     
ClippedDocument and URL summarization serviceNews0     
CO-OPSCoastal oceanographic information serviceScience0     
CogmapOrg chart wikiWiki0     
ColoRotateIntegrate 3D colors to your website or blogTools0     
Colr.org Color and color scheme serviceOther0     
Conservation ScorerHomologous protein sequence similarity calculatorScience0     
CopasiWSBiochemical system simulation serviceScience0     
coRankDistributed user reviews serviceSocial0     
CORDC Nautical Charts Coastal Mapping and Research Mapping0     
CordurlGeo coordinate translation serviceInternet0     
Crum.bsURL shortening serviceInternet0     
CS50 HarvardEventsHarvard Events CalendarEvents0     
CS50 HarvardMapsHarvard Map DataMapping0     
CupónicaLatin American social coupons marketplaceShopping0     
Cyfe PushData analysis dashboard serviceEnterprise0     
DataFed WCSAir quality data visualization serviceScience0     
DaymetDaily weather and climatological summary serviceWeather0     
DecompDNA mass decomposition problem solverScience0     
DesertHail Geodata ServiceGeodata retrieval serviceMapping0     
DFT.BA Link (URL) shortening serviceInternet0     
DIALIGNMultiple protein and nucleic acid sequence alignment serviceScience0     
Divide-and-Conquer Multiple Sequence AlignmentAmino acid, RNA, or DNA sequence alignment serviceScience0     
DKFZ SoapDBGenetics and protein sequence databasesScience0     
DocverterDocument converting serviceTools0     
Dominions DiceDice throwing serviceGames0     
Dress Code FinderRestaurant, bar, and club dress code directoryEntertainment0     
DropproxyAnonymous file-sharing service File Sharing0     
Duplicated Genes DatabaseDatabase of co-located and duplicated genesScience0     
durl.usURL shortening serviceInternet0     
e-FungiFungi genomics database and analysis serviceScience0     
EarthScope Data PortalNorth American earth sciences data serviceScience0     
EBI CENSORBiological sequence repetition masking serviceScience0     
EBI ClustalW2Global multiple sequence alignment serviceScience0     
EBI ClustalW2 PhylogenyPhylogenetic tree creation serviceScience0     
EBI DaliLitePairwise protein structure comparison serviceScience0     
EBI InterProScanProtein signature recognition serviceScience0     
EBI KalignMultiple sequence alignment serviceScience0     
EBI LalignLocal pairwise sequence alignment serviceScience0     
EBI MAFFTMultiple sequence alignment serviceScience0     
EBI MUSCLEMultiple sequence alignment serviceScience0     
EBI MViewBioinformatics data reformatting serviceScience0     
EBI NCBI BLASTDatabase search for biological sequences similaritiesScience0     
EBI PhobiusProtein topology and signal peptide prediction serviceScience0     
EBI PRANKProbabilistic multiple alignment serviceScience0     
EBI PSI-BLASTDatabase search for related protein sequencesScience0     
EBI SBOOntology for computational modeling of systems biologyScience0     
EBI T-CoffeeMultiple sequence alignment serviceScience0     
EBI WhatizitMolecular biology term identification and reference linkingTools0     
EBI WSDbfetchBiological database search serviceScience0     
EBI WU-BLASTDatabase search for biological sequence similaritiesScience0     
Ecwid ProductEcwid Store Information LookupShopping0     
EmberWeb application building serviceBackend0     
EMBOSS BacktranambigProtein to nucleic acid back-translation serviceScience0     
EMBOSS BacktranseqProtein to nucleic acid back-translation serviceScience0     
EMBOSS MatcherLocal pairwise sequence alignment serviceScience0     
EMBOSS NeedleGlobal pairwise sequence alignment serviceScience0     
EMBOSS SixpackDNA visualization toolScience0     
EMBOSS StretcherGlobal pairwise sequence alignment serviceScience0     
EMBOSS TranseqNucleic acid to peptide translation serviceScience0     
EMBOSS WaterLocal pairwise sequence alignment serviceScience0     
Emotional CitiesArt Project that Collects Data from an Emotional State SurveySocial0     
EPA Project CatalogEPA project information serviceScience0     
EPA StationFind EPA monitoring stations by geographic areaScience0     
EventificationSocial Event SiteEvents0     
EverlapseImage and photo sharing application Photos0     
ExceptionalWeb application bug tracking serviceTools0     
FactolexFact/Lexicon Database ServiceDatabase0     
FairLuckRandom number generator for casino softwareGames0     
fanart.tv TVTV and movie fan art repositoryEntertainment0     
Federal Infrastructure ProjectsFederal project dashboardGovernment0     
FeedFlowFeed monitoring serviceOther0     
FenopyTorrent sharing serviceFile Sharing0     
File MD5MD5 file hash serviceUtility0     
FlexPaperDocument viewer for webTools0     
FlowplayerHTML5 video playerVideo0     
FlyBaseDrosophila genomic information databaseScience0     
follow costFind the follow cost of a Twitter accountSocial0     
For WantedBuying and selling platformShopping0     
FotoFlexerOnline image editorPhotos0     
FoxweaveData syncing and migration serviceEnterprise0     
FreelancerJob search and recruiting service for freelancersJob Search0     
ftw.gdURL-shortening serviceTools0     
FviconFavicon retrieval serviceTools0     
Galleria.ioImage gallery servicePhotos0     
GatorURLURL Shortening ServiceUtility0     
Genomic Name ServerBioinformatics databaseScience0     
GeomenaOpen geo database of WiFi access points Other0     
GlimtNorway event aggregation serviceEvents0     
GlobPlotterProtein structure prediction serviceScience0     
GMODRemote Querying of Biological DatabasesReference0     
gnTEAM Full TextText editing and bioinformatics data retrieval servicesTools0     
Golm Metabalome DatabaseMetabolic molecule databaseScience0     
Google Patent SearchPatent search serviceSearch0     
Google Time ZoneTime zone by location serviceTools0     
Google Virtual KeyboardVritual keyboard serviceOther0     
GroopBuyLocal deals and group buying serviceShopping0     
GroupDocsOnline document management serviceFile Sharing0     
Guardian PoliticsUK government and political resourcesGovernment0     
HathiTrust VolumesLibrary catalogue information retrieval serviceEducation0     
Have I been pwnedAccount Breach DatabaseDatabase0     
HelioviewerSolar and heliospheric data accessOther0     
HistoryFile JobsJob posting directoryJob Search0     
HUSAR Bioinformatics LabSuite of bioinformatics servicesScience0     
I'vReadSocial Reading RecordSocial0     
IBCP gBIOProtein sequence analysis serviceScience0     
IceLogoPeptide sequence alignment consensus visualizationScience0     
IdeaTreeMind map serviceUtility0     
Illocution UpzillaLanguage analysis serviceTools0     
ImageFlyImage editing servicePhotos0     
IMG4MeText to Image ServiceTools0     
Index Fungorum FungusFungal organism name indexScience0     
InfinigagMeme and photo sharing platformEntertainment0     
InfostradasportsSports information serviceSports0     
Invite ReferralsCustomer referrals programAdvertising0     
IOOS SOSCoastal conditions information serviceScience0     
iOpenAt.comBusiness opening hoursRetail0     
iRefIndexProtein interaction databasesScience0     
IST Bioinformatics Web ServicesBioinformatics databasesScience0     
ITweetLiveTwitter search and engagement serviceSocial0     
JawocoWeb search engineSearch0     
JoliprintConvert HTML to PDF DocumentsOffice0     
Jonathan's CardSocial sharing experiment Social0     
JSPWikiWiki data retrieval serviceWiki0     
JumboTweetURL shortenerInternet0     
Karniyarik Product SearchTurkish shopping search engineShopping0     
KillerTours.comBand and Concert Search ToolEvents0     
KnotInFrameDNA and RNA frameshift site prediction serviceScience0     
KratiaDemocratic search engineSearch0     
ktailab Mobile Country CodeFind locations based on mobile informationTelephony0     
KwoutWebsite quote with images toolTools0     
la Loter�a del Ni�oSpanish Lottery Information LookupGovernment0     
LanguageToolText proofreading toolTools0     
Larimer County Public Records DatabasesLarimer County property and property tax information serviceGovernment0     
Lauerfac.esChristopher Lauer avatar platformFile Sharing0     
Lemonade StandCommunity Sales ServiceShopping0     
Library of Congress Subject HeadingsAccess to the Library of Congress Subject HeadingsReference0     
LifeDesksOnline science and taxonomy communityReference0     
Loci.meCreate and Share Places/LocationsSocial0     
LogMeIn RescueAccount information serviceOther0     
LOUISUS federal documents databaseGovernment0     
LTC-DataLitecoin Information ServiceFinancial0     
Macromedia News AggregatorData access serviceNews0     
MagmaVideo directory and discovery serviceVideo0     
MarkerlyContent sharing widgetWidgets0     
MashSpotsLocal search and mappingSearch0     
MemriseOnline subject learning platformEducation0     
MercheeeCommerce and mCommerce servicePayment0     
MetaLayerData visualization serviceOther0     
MetallizerHeavy metal album and song generatorMusic0     
MetaWeblogBlog editing serviceBlogging0     
MimviMobile apps search engineOther0     
Miri Device DescriptionMobile device description serviceTools0     
miRMaidmiRNA database access serviceScience0     
MlCalc.com Mortgage Loan CalculatorLoan Expense Calculation ServiceWidgets0     
MobileWorksCrowd-sourcing employment platformJob Search0     
Mouse Resource BrowserMouse-related bioinformatics resource serviceScience0     
MuseliaMuseum mapping serviceEducation0     
Museum of LondonAccess to museum dataEducation0     
MuseumsvokabularGerman museum vocabulary retrieval serviceEducation0     
MutalyzerChecks variant sequence nomenclature for correctnessScience0     
MyBikeLaneRead-Only API for MyBikeLane and UncivilServants DatabaseGovernment0     
MyGene.InfoAnnotated gene information serviceScience0     
NaCTeM TermineText mining serviceTools0     
NASA Moderate Resolution Imaging SpectroradiometerSatellite data purchasing serviceScience0     
National Virtual ObservatoryNVO directory interfaceScience0     
NBIC PeregrineTerm recognition and tagging serviceTools0     
NCEP North American MesoscaleWeather data retrieval and forecasting serviceWeather0     
Neil deGrasse Tyson Quotes Neil deGrasse Tyson Quotes Reference0     
NEOSProgram optimization serviceTools0     
Network Analysis Tools (NeAT)Suite of biological network analysis toolsScience0     
Nice Time on IceNational Hockey League informationSports0     
Nobel PrizeNobel Prize information serviceDatabase0     
nowCOAST LayerInfoCoastal mapping information retrieval toolMapping0     
Office for National StatisticsUK neighborhood and census dataGovernment0     
OIPA: Openaid IATI International development aid databaseDatabase0     
OligoSelectionDNA microarray experiment minimal subset calculatorScience0     
olpcMAPEducation technology mapping serviceMapping0     
OnlyWireSocial bookmarklet serviceBookmarks0     
Open Archives InitiativeJournal article metadata harvesting serviceEducation0     
Open LibraryLibrary data accessReference0     
OpenGov NSWNew South Wales government data serviceGovernment0     
OpenThesaurusOpen source German thesaurusDictionary0     
OremGeocoderUtah geocoding serviceMapping0     
Overpass OpenStreetMapCollaborative Mapping ServiceMapping0     
OverwolfGame and social application integration serviceGames0     
OZ Data CentaHack and Data Leak Archive ServiceSecurity0     
ParsCitCitation and logical structure parsing serviceScience0     
Passphrase Random PasswordRandom character generator password serviceSecurity0     
PasstaStructure-based protein relationship identifierScience0     
PDFremixPDF document editing serviceTools0     
Pearson Correlation CoefficientCalculator for the Pearson Correlation Coefficient ρTools0     
PeerReachTwitter reputation serviceSocial0     
PelagiosAncient world geodataMapping0     
Perfect AudienceWeb and Facebook advertising & marketing serviceAdvertising0     
PfamProtein domain family databaseScience0     
PhotocatOnline and mobile photo editing servicePhotos0     
Phylogenetic FootprintingPhylogenetic footprinting serviceScience0     
PicZassoPhoto hosting servicePhotos0     
PixorialVideo collection and creation applicationVideo0     
Pizza-Rat Restaurant HealthRestaurant health inspection scoresFood0     
pknotsRGRNA secondary structure prediction serviceScience0     
PlanningAlertsAlerts service for UK local planning alertsReal Estate0     
playMobiHTML5 game monetization serviceGames0     
PluploadFile uploading serviceUtility0     
Ponyfac.esMy Little Pony avatar platformFile Sharing0     
Postcodes.ioPostcode & geolocation serviceMapping0     
PosterOvenOnline poster creation serviceAdvertising0     
PropersRecommendation serviceRecommendations0     
ProThesaurusProtein name thesaurusScience0     
Python Package IndexPython code databaseReference0     
QR-Server QR CodeOnline QR Code API (a 2D barcode)Utility0     
Quotes on DesignRandom Quote GeneratorOther0     
Ragefac.esMeme avatar platformFile Sharing0     
ReactomeBiological pathway databaseScience0     
Readability rdd.meURL shortening serviceInternet0     
Realtime ORTCApplication messaging serviceMessaging0     
Recipe PuppyRecipe databaseFood0     
ReputerGenomic repeat detection serviceScience0     
RequestBinHTTP request analysis serviceInternet0     
Reto Loser's Lotto GeneratorRandom lottery number generatorGames0     
Rewd.coURL shortening tool Tools0     
Rhyming Rhyming dictionaryDictionary0     
RibbetOnline photo editing servicePhotos0     
RIOJA Journal RepositoryScholarly article data retrieval serviceScience0     
RNAfoldRNA secondary structure prediction serviceScience0     
RNAforesterRNA secondary structure comparison serviceScience0     
RNAhybridRNA hybridization prediction serviceScience0     
RNAshapesRNA shape prediction serviceScience0     
RociPhylogenetic tree-building toolScience0     
RoseEvolution modeling service for protein sequencesScience0     
SafeLinkingLink Securing ServiceSecurity0     
SchedulrURL callback and scheduler serviceInternet0     
Science.govScience information serviceGovernment0     
ScreenheroCollaborative screen sharing serviceTools0     
Screenshots.comScreenshot history collectionPhotos0     
ScreenTunesMedia based search engineMusic0     
SEGUIDProtein sequence ID generation serviceScience0     
semanticSBMLBiochemical model viewing and manipulation serviceScience0     
SemantiNet Knowledge GraphWeb Data Query ServiceTools0     
SendyEmail newsletter serviceEmail0     
ShakespeareShakespearian play quote origin identification serviceReference0     
Shared CountSocial Network Tracking ServiceSocial0     
shortrURL shortening service.Internet0     
SifterBug and issue tracking serviceTools0     
SigQuotesRandom Alistair Young quote generatorReference0     
SimpleMapprPoint map creation serviceMapping0     
Singapore Metro Rapid TransitMass transit information for SingaporeTransportation0     
SKGA Golf HadicapGolf handicap in SlovakiaReference0     
SLiMFinderShared protein motif discovery serviceScience0     
SMARTProtein domain identification and annotation serviceScience0     
SmartPea Grocery Grocery store deal and shopping list serviceShopping0     
SMS GupShupSMS Group Message ServiceTelephony0     
SnagPadJob search learning and management platformJob Search0     
Snipt.netCode Snippet Sharing ServiceTools0     
SNOTELSnowpack data serviceScience0     
Sony Camera RemoteCamera and photo application servicePhotos0     
soundtoysVisual artists works repositoryMusic0     
SourberrySourberry Internet Radio Status ToolMusic0     
Spark DevicesLight and lighting control serviceTools0     
SparkwiseData visualization and metrics serviceTools0     
SpeakerRateEvent online community serviceEvents0     
Species InvadersInvasive species databaseScience0     
Spinn3rBlog search index serviceBlog Search0     
Spire ITISTaxanomic serial number and scientific name databaseScience0     
stdiconIcons for standard site or file typesInternet0     
StreampadMusic streaming serviceMusic0     
tagdefTwitter hashtag definitionsSocial0     
TaggstarPhoto enhancement applicationPhotos0     
TagyuTag recommendation serviceTagging0     
TechSavvy Technology job listing siteJob Search0     
Tell Them What You ThinkUK government consultations databaseGovernment0     
Text-Processing.comText Processing ServiceTools0     
TextBeltOutgoing SMS serviceMessaging0     
TFmodellerDNA-binding protein modeling serviceScience0     
The Miso ProjectData management and visualization serviceTools0     
The SEEDGenomic information databaseScience0     
The Transit AppTransportation directions and routes applicationTransportation0     
ThingiverseDigital design sharing platformOther0     
ThinglinkImage interaction servicePhotos0     
ThrustCurveModel rocket motor dataSearch0     
TimeAPIOnline time providerUtility0     
tinyThom.asPermanent URL generator for Library of Congress linksTools0     
TListsSearch and browse Twitter listsSocial0     
TouchcastWeb video platformVideo0     
TransLocTransportation tracking and information serviceTransportation0     
TreeBASEPhylogenetic tree databaseScience0     
TrustCloudTrust ranking service Social0     
TweetBonerTwitter favorites summary serviceSocial0     
TwitlblTwitter data analysis serviceSocial0     
twitsnaps Twitter photo sharingPhotos0     
TwTubeYouTube URL shortenerTools0     
UCLA.inURL Shortening ServiceInternet0     
UndisposableCollaborative protection against disposable emailEmail0     
Unofficial IMDbUnofficial search interface for Internet Movie Database (IMDb)Reference0     
Unsigned Band Web MusicMusic streaming service and music databaseMusic0     
UntinyTiny URL Extraction ServiceUtility0     
UrbienVirtual world platformGames0     
UrloidShort URL serviceUtility0     
USGS National Water Information SystemWater quality data serviceScience0     
Utility MillWeb Utility DatabaseUtility0     
VexFlowWeb-based music rendering serviceMusic0     
VIES VATTax information verification serviceFinancial0     
VocarooVoice recording serviceTools0     
VoiceboxData visualization about youth cultureDatabase0     
VoicesphereVoice control and activation platformTools0     
Vote.ca DistrictsCanadian Voting Place Locator ServiceGovernment0     
WalkMeCustom step-by-step instructions for websites & applicationsTools0     
Washington DC Open 311Call center service for Washington DCGovernment0     
Washington Post NFL Statistics National Football League (NFL) statistics serviceSports0     
WattpadStory creation and sharing applicationSocial0     
We Know A Place Nursing Home LocatorNursing home locatorMedical0     
We Know A Place Senior Housing LocatorSenior housing locatorReal Estate0     
WebrideAttaches discussions to any siteInternet0     
WebSpellCheckerSpell checking serviceInternet0     
WeeblyWeb site and blog creation serviceInternet0     
WellynewsWellington New Zealand news searchNews0     
What They ClaimedExpenses records for UK members of parliamentGovernment0     
Who is my RepresentativeDatabase of US congressional representativesGovernment0     
WikiMatrixWiki search and comparison serviceWiki0     
WikirandomGenerate Random Wikipedia PagesReference0     
Woocation DistanceDistance between cities serviceMapping0     
World Bank ClimateClimate change information portalReference0     
wpSEEKWordPress search toolSearch0     
wrap.imAnonymous linking libraryInternet0     
XML Daily FactXML daily fact widgetInternet0     
YebolSemantic search engineSearch0     
YottaShareMulti-service URL un-shortenerTools0     
Zapier Status Dashboard of API status informationUtility0     
ZipCodesSimple zip code lookup serviceOther0     
ZippopotamusZip and postal code serviceMapping0     
ZoomCloudsTag cloud serviceOther0     
ZutualTwitter analysis serviceSocial0     
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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.