MongoDB Atlas is MongoDB's Database as a Service (DBaaS) offering. It is available as a multi-cloud offering, supporting Amazon Web Service (AWS), Microsoft Azure, and Google Cloud Platform.

Using DBaaS, patches and minor version upgrades are applied automatically, without any downtime. Using the graphical user interface (GUI), a developer can deploy geographically distributed database instances to avoid having any single point of failure. For websites with significant traffic, this can also help by placing database servers closer to the users who are accessing their data. This is a key part of MongoDB's strategy and offering as they embrace having data close to the user.

Similar to most DBaaS offerings, Atlas allows users to scale a deployment using a GUI. Every deployment lives on its own Virtual Private Cloud (VPC) and can leverage MongoDB Enterprise Server features such as encryption key management, Lightweight Directory Access Protocol (LDAP), and auditing features.

The live migration service can be used to migrate datasets from existing deployments on-premises, in any of the three supported cloud providers or other DBaaS services, such as mLab, Compose, and ObjectRocket, using the same GUI.