The answer is https://rapidapi.com/ and https://www.programmableweb.com/apis/directory
比如
Image Processing and Facial Recognition APIs： https://rapidapi.com/collection/top-image-recognition-apis
新闻类API：
https://rapidapi.com/blog/rapidapi-featured-news-apis/
https://www.programmableweb.com/category/news-services/apis?category=20250&keyword=news
音乐类API：What is the best music API? https://rapidapi.com/blog/top-free-music-data-apis/