Launched in March 2021 by the Sustainable Cities Institute (SCI) as part of one of the Sustainable Cities Program (SCP) and in partnership with the Sustainable Development Solution Network (SDSN), the Sustainable Development Index for Brazilian Cities (SCDI-BR) is a tool to stimulate and monitor Brazilian cities with regard to the implementation of SDGs. Using more than 80 indicators, the SCDI-BR presents a ranking of Brazilian municipalities based on their fulfillment of the 2030 Agenda as a whole and within each of the 17 SDGs. The SCI hopes the Index can generate a movement for effective transformation in Brazilian cities, guide municipal political action, and define references and goals based on management indicators. It is an opportunity for cities to integrate into the most advanced global sustainable development agenda.