CouchDB: The Definitive Guide. Apache CouchDB: The Apache CouchDB Project. Quick Tip: Using Users in MongoDB. By default a MongoDB install does not use a username/password combination to access the database.
No Password, But Why? This is down to the design philosophy of MongoDB which is to push much of the “logic” to the application level and keep the database doing what databases do best! Hence, given the way that MongoDB is normally used it’s generally not necessary. The MongoDB Manual.