MongoDB-backed ASP.NET Core Identity, without the EF Core detour

If you're already running MongoDB and you reach for ASP.NET Core Identity, the official story points you at Entity Framework Core. That's a fine answer if you have a relational database. If you don't, you end up bolting a second data access stack onto an app that has exactly one store. You don't need it. AspNetCoreIdentity.MongoDriver is a store provider that talks to Mongo through the official MongoDB.Driver directly — no EF Core, no SQL, no second persistence model. It implements the Identity store interfaces, ships a UserStore and RoleStore, and wires up UserManager/RoleManager the way you already expect. The 15-line version Register the provider in Program.cs: builder.Services.AddIdentityMongoDbProvider<MongoUser<Guid>, MongoRole<Guid>, Guid>(identity => { identity.User.RequireUniqueEmail = true; }, mongo => { mongo.ConnectionString = builder.Configuration.GetConnectionString("MongoDb")!; }); A connection string like mongodb://