The ENUBET experiment and its implementation at CERN

Monitored neutrino beams are a novel technology designed to provide measurements of the neutrino cross sections at GeV scale with a total uncertainty of O(1%), thus improving by one order of magnitude current experimental estimates.The ENUBET project is close to proving for the first time the feasibility of this concept and the Collaboration is preparing a proposal for a new neutrino beam at CERN based on the SPS accelerator and the ProtoDUNEs neutrino detectors thatare already operative at the North Experimental Area. In this contribution, we discuss the final design of the horn-less transfer line and the instrumented decay tunnel which allows us to measure the charged leptons associated with neutrinos from kaon decays. Finally, we discuss the expected physics performance using the SPS accelerator and the ProtoDUNE-SP neutrino detector and future perspectives for the implementation of the entire facility at CERN North Area.