MongoDB Atlas

What’s New in Atlas

MongoDB Stitch (Available in Beta)

MongoDB Stitch is a backend as a service that provides an HTTP API to MongoDB, integration with other services, and a declarative rules infrastructure which spans database and service actions.

MongoDB Atlas is a cloud service for running, monitoring, and maintaining MongoDB deployments, including the provisioning of dedicated servers for the MongoDB instances. In addition, Atlas provides the ability to introspect collections, query backups, and migrate data from existing MongoDB replica set into an Atlas cluster.

MongoDB Deployments

MongoDB deployments, or “clusters” in Atlas, can be either a replica set or a sharded cluster.

MongoDB Versions

Atlas supports creating M10+ paid tier clusters with the following MongoDB versions:

  • MongoDB 3.2
  • MongoDB 3.4
  • MongoDB 3.6

M0 Free Tier and M2/M5 shared tier clusters only support MongoDB 3.4.

As new maintenance releases become available, Atlas automatically upgrades to these releases via a rolling process to maintain cluster availability.

If the workload on the Atlas cluster is such that it impedes operations, including the ability to scale, MongoDB Atlas may, in some situations, create indexes in your cluster as a safeguard.


Atlas deploys mongod process to its own instance. For sharded clusters, the six routers (the mongos processes) run on six of the shard servers; i.e. each of the six mongos processes shares an instance with one mongod process.

Depending on the cloud provider and region selected for the Atlas project, Atlas distributes each cluster across the region for high availability. For more information on how Atlas manages cluster distribution, see Amazon Availability Zones for AWS, GCP Zones for GCP, and Azure Fault Domains for Azure.

Atlas deploys each cluster with mandatory security.

Atlas Organization and Project

Atlas provides an organizations and projects hierarchy to facilitate the management of your Atlas clusters. In the organizations and projects hierarchy, an organization can contain multiple projects (previously referred to as groups).

Your Atlas project manages your MongoDB deployments. An Atlas project can have multiple MongoDB clusters.

For more information, see Organizations and Projects.


Atlas secures your deployments through the use of TLS/SSL, virtual private cloud (VPC) subnet with IP whitelists, and user authentication and authorization.


Atlas provides support for the use of the service itself. Support for development and performance of the database itself requires a MongoDB subscription. For details, contact MongoDB Inc..

Next Steps

To get started, see Getting Started.

Additional Resources

For more resources, see Videos & Other Resources.