@deniMubarokHilmi said:
how to get full access to the API
hallo,I want to ask about access to the API,
I want to get full access to the API

Access is the same for everyone.

how do I do it?

Just request your API Key.
See instructions here.
https://developer.themoviedb.org/docs/getting-started

does it have to be paid?

It depends on your use.
See how you fit in.

When I created my API Key I chose between these options:

Developer

• You are an individual
• Your project is still in development
• Your project is non profit

Professional

• You represent a company
• Your project is for profit (not ad supported)
• You are an OEM or hardware vendor