Since internationally visible scientific productivity is a criterion for state evaluation of Croatian academic and scientific institutions and their scientists, Croatian academic libraries have a key role in quantitative evaluation of scientific productivity using methods such as bibliometrics, scientometrics and the like. The aim of this case study is to identify and illustrate the current situation of library services for evaluating scientific production at the University of Zagreb, Croatia, and to make recommendations for the further development of such services, which could serve as a framework for the systematic implementation of this type of service in all libraries at the University of Zagreb and beyond.