What functionality is available through the YouTube API?

The API provides the ability to retrieve feeds related to videos, users, and playlists. ... Please see the reference guide for a complete list of feeds. SkiptomaincontentWhatfunctionalityisavailablethroughtheYouTubeAPI?TheAPIprovidestheabilitytoretrievefeedsrelatedtovideos,users,andplaylists.Italsoprovidestheabilitytomanipulatethesefeeds,suchascreatingnewplaylists,addingvideosasfavorites,andsendingmesssages.TheAPIisalsoabletouploadvideos. Pleaseseethereferenceguideforacompletelistoffeeds. Additionally,thereisaJavaScriptAPIandaFlashAPIforthevideoplayer.trueGettingStartedWheredoIfindtheDevelopersGuidefortheYouTubeAPI?DoIneedadeveloperkeytousetheYouTubeAPI?What'sthedifferencebetweentheGData-basedAPIandthelegacyAPI?HowlongwilltheLegacyAPIcontinuetowork?WhatfunctionalityisavailablethroughtheYouTubeAPI?IstheYouTubeAPIbaseduponanystandardformatsorprotocols?WherecanIgotogethelpwithaproblemI'mexperiencing?WhatistheDeveloperKey?WhatistheClientID?WhatarethelimitsforuploadingwiththeAPI?GoogleappsMainmenuSearchHelpCenterfalsefalse