Get YouTube comments
Input
video requiredA YouTube video URL (watch?v=, youtu.be/, /shorts/, /embed/) or a bare 11-char video id.
sort optionalComment sort order. Ignored when paginating with a cursor (the cursor carries its own order).
Default: "top"cursor optionalPagination token from a previous call's nextCursor. Omit for the first page.
Output
sort requiredEffective sort on the first page; null on cursor pages (the cursor carries its own order).
videoId requiredcomments requiredEmpty when the video's comments are disabled. An unavailable video raises an error instead.
nextCursor requiredPass back as cursor for the next page; null on the last page.
Search YouTube videos
Search YouTube videos by query, or list a channel's or playlist's videos from its URL. Returns a list of videos with id, title, url, duration, channelName, channelUrl, viewCount, date, thumbnailUrl, and description.
Post YouTube comment
Post a top-level comment on a YouTube video. Returns the new commentId.
Get YouTube channel stats
Get a YouTube channel's stats and profile from a @handle, channel id (UC...) or channel URL. Returns channel_id, handle, name, description, subscribers, video_count, view_count, joined, country, channel_url, avatar, rss_url, is_family_safe, keywords and links. Subscribers is the abbreviated public figure (e.g. 4.51m becomes 4510000, approximate), while video_count and view_count are exact; joined is a display string (e.g. "1 Feb 2015") and each link's url is the display host without scheme.