https://opensourceindex.io/?company=mongoDB reports https://github.com/mongodb/mongo as a "top repo"

"Versions released prior to October 16, 2018 are published under the AGPL. All versions released after October 16, 2018, including patch fixes for prior versions, are published under the Server Side Public License (SSPL) v1"
Source: https://github.com/mongodb/mongo#license