The project “Creating Interfaces” addresses capacity building for the urban food-water-energy (FWE) nexus, making the few-linkages understandable to the stakeholders (city government, science, business and citizens), and facilitating cooperation and knowledge exchange among them. It will develop and test innovative approaches for local knowledge co-creation and participation through Urban Living Labs in three mid-size cities on water: Tulcea (Romania), Wilmington (USA) and Slupsk (Poland). Complemented by previous research and a citizen science toolbox, these labs comprise a user-defined co-creative approach, where research questions, problems, and solutions are decided and implemented with stakeholders themselves.