Currently, information on scientific events such as conferences is often scattered and not available in the long term. With the project ConfIDent we want to develop a service platform for the quality-driven, collaborative curation of semantically structured metadata of scientific events. It will provide reliable and transparent data and workflows for researchers (organizers, speakers, participants) as well as other stakeholders of scientific events such as university administrations, libraries, sponsors, publishers or specialized societies. The sustainability of the service will not only be obtained a user-centered approach but also by connecting it to existing services enabling data exchange, and by the commitment to the FAIR principles. ConfIDent will reach the current desideratum of long-term findable, open, referenceable and reusable metadata on scientific events.