根据 https://developers.google.com/***/v3/docs/videos/list 似乎最新版本的 *** API 现在返回标签:

According to https://developers.google.com/***/v3/docs/videos/list it appears that the latest version of the *** API now returns tags:

https://www.googleapis.com/***/v3/videos?key={API-key}&fields=items(snippet(title,description,tags))&part=snippet&id={video_id}