From the Princeton University Library:
In July 2021, the Framing the Late Antique and Early Medieval Economy (FLAME) project passed the major milestone of digitizing, storing, and visualizing the production and movement of more than 700,000 coins across Western Afro-Eurasia.
FLAME is a Princeton University-based project that supplies hard data about the early medieval economy over about 400 years (from 325 to 750 CE). It is head-quartered in Princeton University Library’s Special Collections, where it is run by FLAME Chair and Princeton’s Curator of Numismatics Alan Stahl and Database Coordinator Mark Pyzyk. Recently, FLAME launched its second major web application—the Circulation Module—designed to track coin movement across a region stretching from Portugal to India. The application stores information on hundreds of thousands of coins, including where they were minted, as well as where they traveled.
Direct to FLAME Website