The classification of ancient coins, the numismatic foundation of studies on exchanges and economies, is at a standstill due to the difficulty of adopting a method and collective standards. Over the past 4 years, exploratory work has been carried out to formalise methodological perspectives and put them to the test on a limited panel of coins. The contribution of the life sciences is crucial, both for the classification methodology and for the quality of the works made available to the scientific community. The aim of the ClaMoMed project is threefold: (1) to establish consolidated numismatic classification standards, (2) to carry out a scientific classification of a large panel of medieval coins (5th-15th centuries) from the current French area using digital tools, (3) to complete a publishing project designed to invent and produce new tools providing easy access to rigorous information on these coins. The partnership formed for this project brings together medieval numismatists from the teams of three French UMRs (CRAHAM, IRAMAT, IDEES) and France's leading archaeological operator (INRAP), as well as the Digital Document Unit of the MRSH in Caen and the Presses universitaires de Caen.