Abstract. Authority control is recognized as an expensive task in the cataloging process. This is actually an active research field in libraries and related research institutions even when several approaches have been proposed in this research area. In this paper, we propose AUCTORITAS, a tool for exposing high value services on the web for the authority control in a generic institution environment. This paper describes the application ecosystem behind AUCTORITAS and how the semantic web languages make possible the semantic integration of heterogeneous applications. Likewise we evaluate the applicability of the proposal for academic libraries.