Depending on where you encountered this term, it may relate to one of the following:

The AMA PRA Credit System is used by physicians to track continuing medical education (CME). Documentation or software tools related to "AMA Pricing" for these credits or Medicare Physician Fee Schedules (PFS) are sometimes distributed in archived files.

There is a script known as AMA (Automated Music Archiver) used to automatically download and organize music for media applications like Plex. Security Considerations for .rar Downloads