@gichul0602 said:
Can I save the metadatas in local DB?
Nice to meet you everyone.
I have an one question about the datas which I have gotten by using TMDB API.
Can I save the metadatas which I have gotten by using TMDB API and use in my term-project service by non-commercial use?
I want to got an answer about this.
I'm waiting for the wise answer about it, thanks :)

See here
https://www.themoviedb.org/api-terms-of-use
Maybe it will answer your question.

C. Restrictions. In addition, You must not:
iii. Cache, for longer than 6 months, any information obtained through or from TMDB or the TMDB APIs.