searchTerm: Encoded string
Basic freetext finder. If no searchTerm is defined, you will get a basic API error saying "not found".
However, this gives the opportunity to find more specific things. Almost all columns are searchable, which means if there is an imdb-cache, you can also find a few of the names of actors. There's some examples:
https://api.earth616.org/api/mcu/find/Robert%20Downey (Robert Downey)