Adding API to carrd

Would it be possible to add TMBD's api to make a kind of letterboxd situation on my site? I have a section where i manually put in all the movies I watch but it's so tedious. & if yes, I currently have pro standard, would I need pro plus? i know some coding basics so I can def figure it out, I just don't want to try it/upgrade if it's not even possible lmao