It would be nice to be able to get a list of contacts unsubscribed from a specific list within specific date range via API
Sorry for the delayed response. I didn't see your request in the list that I usually check.
Since the time that you posted this request, we've introduced the ability to do incremental file exports (in the past 24 hours/7 days/30 days/etc.) Would this help?
Vice President - Product and Client Success
Maropost Marketing Cloud