The CO3 project uses digital disruptive technologies like social networks, augmented reality, blockchain, and gamification to engage citizens in co-creating, co-producing, and co-managing open public services. The 3-year, 3 million euro project involves 5 countries and 10 partners including universities, foundations, and municipalities. It will pilot these technologies in Turin to match donors with those in need and allow civic participation in urban planning, and in Athens to map food distribution and incentivize service production. The goals are to empower citizens, strengthen communities, and align innovation with societal needs.