I could see that in the past, we could retrieve for example the most viewed Youtube videos using this link (http://gdata.youtube.com/feeds/api/standardfeeds/most_viewed)But I think that link no longer works.So I don't know how to retrieve the most viewed, most liked Youtube videos, search for a video using keywords...
I tried to watch directly on "https://developers.google.com/youtube/v3/docs/videos" but without any success