Science is important in informing policy. However, there is a disconnect between decision-makers and access to research-based knowledge on biodiversity. To shrink this gap, the EU-funded BioAgora project will develop the science pillar of the EU’s Knowledge Centre for Biodiversity (KCBD). It is an initiative aimed at providing decision-makers with research-based knowledge on biodiversity in all sectors of society. As a platform, the KCBD facilitates communication and exchange between scientists, policymakers and other stakeholders. The project will analyse the existing landscape of science-policy interfaces in Europe and engage with a range of actors to cocreate new ways of bridging the gap between science, practice and policy.