The EUdaphobase COST Action aims to create the structures and procedures necessary for developing an open Europe-wide soil biodiversity data infrastructure. European authorities and stakeholders urgently need reliable tools for monitoring and evaluating the environmental condition of soils within policy assessment in context of numerous EU directives. The ultimate goal of EUdaphobase is to establish a pan- European soil-biological data and knowledge warehouse, which can be used for understanding, protecting and sustainably managing soils, their biodiversity and functions.