@robbevw said:
Daily file export for watch providers?
Is there a daily file export for watch providers? https://developer.themoviedb.org/docs/daily-id-exports
A file where all the available watch providers are, similar to the https://developer.themoviedb.org/reference/watch-providers-movie-list api.

No.
This data is provided by JustWatch.
There is not much change in who is a watch provider.
The changes concern which film can or cannot be found on a watch provider in a given country.
An import is made daily to update the TMDb.
Movie premiere data on JustWatch usually arrives 24 hours later.