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Connect via Drivers

On this page

  • Prerequisites
  • Connect Your Application
  • Driver Examples
  • Troubleshooting

The Connect dialog for a cluster provides the details to connect to a cluster with an application using a MongoDB driver.


Serverless instances don't support connecting via certain drivers or driver versions at this time. To learn more, see Serverless Instance Limitations.

Use the Select your language drop-down menu to set the language of the example on this page.

Your driver version must be compatible with your version of the MongoDB server. We recommend choosing the latest driver that is compatible with your MongoDB server version to use the latest database features and prepare for future version upgrades.

For a list of driver versions that contain the full set of functionality for your version of the MongoDB server, check the compatibility matrix for your MongoDB driver.

For a list of driver versions that you can use to connect to serverless instances, see Minimum Driver Versions for Serverless Instances.

To connect to your sharded cluster using a driver and an optimized connection string, you must use at least one of the following driver versions:

1.11.0 (Extension)
1.10.0 (Library)

Clients must support TLS to connect to an Atlas cluster.

Clients must support the SNI TLS extension to connect to an Atlas M0 free cluster or M2/M5 shared cluster. To verify that your MongoDB driver supports the SNI TLS extension, refer to the Compatibility section of your driver's documentation. If the driver is compatible with MongoDB 4.2 and later, it supports the SNI TLS extension.

To access a cluster, you must connect from an IP address on the Atlas project's IP access list. If you need to add an IP address to the IP access list, you can do so in the Connect dialog. You can also add the IP address from the Network Access tab.

To access a cluster, you must create a database user with access to the desired databases on your Atlas cluster. Database users are separate from Atlas users. Database users have access to MongoDB databases, while Atlas users have access to the Atlas application itself.

You can create a database user to access your Atlas cluster in the Connect dialog. You can also add the database user from the Cluster view.

  1. Click Database in the top-left corner of Atlas.

  2. In the Clusters view, click Connect for the cluster to which you want to connect.


Choose Connection Type from the set of available buttons.


Options Display if Feature Enabled

Atlas displays the connection type options after you enable Private IP for Peering, Private Endpoint, or both. If you haven't enabled either feature, no buttons display and Connection Type defaults to Standard.



Skip this step if Atlas indicates in the Setup connection security step that you have at least one database user configured in your project. To manage existing database users, see Configure Database Users.

To access the cluster, you need a MongoDB user with access to the desired database or databases on the cluster in your project. If your project has no MongoDB users, Atlas prompts you to create a new user with the Atlas Admin role.

  1. Enter the new user's Username.

  2. Enter a Password for this new user or click Autogenerate Secure Password.

  3. Click Create Database User to save the user.

Use this user to connect to your cluster in the following step.

Once you have added an IP address to your IP access list and added a database user, click Choose Your Connection Method.


In the Choose a connection method step, select Drivers.


Select your driver and version from the dropdown menus. The code sample containing a connection string displays. Replace <password> with the password specified when you created your database user.


If your passwords, database names, or connection strings contain reserved URI characters, you must escape the characters. For example, if your password is @bc123, you must escape the @ character when specifying the password in the connection string, such as %40bc123. To learn more, see Special Characters in Connection String Password.

To learn more, see Driver Compatibility.

In the following example, you authenticate and connect to an Atlas cluster by using a URI connection string. Replace the placeholders in the example with your credentials and deployment details.

If you are experiencing issues connecting to your cluster, see Troubleshoot Connection Issues.


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