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Create a Cluster

Note

Groups and projects are synonymous terms. Your {GROUP-ID} is the same as your project ID. For existing groups, your group/project ID remains the same. The resource and corresponding endpoints use the term groups.

Note

This feature is not available for M0 (Free Tier) clusters. For more information, see Atlas M0 (Free Tier) Limitations.

The Atlas API uses HTTP Digest Authentication. Provide your Atlas username and API key as the username and password when constructing the HTTP request.

For complete documentation on configuring API access for an Atlas project, see Configure Atlas API Access.

Important

If your Atlas project contains a custom role that uses actions introduced in a specific MongoDB version, you cannot create a cluster with a MongoDB version less than that version unless you delete the custom role.

Base URL: https://cloud.mongodb.com/api/atlas/v1.0

Syntax

copy

POST /api/atlas/v1.0/groups/{GROUP-ID}/clusters

Request Path Parameters

Path Element	Required/Optional	Description
GROUP-ID	Required.	Unique identifier for the project in which to create the cluster. Each Atlas project supports up to 25 clusters. Please contact Atlas support for questions or assistance regarding the cluster limit. To contact support, select Support from the left-hand navigation bar of the Atlas UI.

Request Body Parameters

Body Parameter	Type	Necessity	Description
autoScaling	document	Optional	Contains the diskGBEnabled field which specifies whether to enable or disable disk auto-scaling.
autoScaling .diskGBEnabled	boolean	Optional	Specifies whether disk auto-scaling is enabled. The default is true. Set to true to enable disk auto-scaling. Set to false to disable disk auto-scaling. Note Disk auto-scaling is subject to limitations based on the maximum amount of RAM for the selected cluster tier and the oplog size. See Customize Your Storage for details.
backupEnabled	boolean	Optional	Applicable only for M10+ clusters. Set to true to enable Atlas continuous backups for the cluster. Set to false to disable continuous backups for the cluster. Atlas deletes any stored snapshots. See the continuous backup Snapshot Schedule for more information. You cannot enable continuous backups if you have an existing cluster in the project with Cloud Provider Snapshots enabled. The default value is false.
biConnector	document	Optional	Specifies BI Connector for Atlas configuration on this cluster. BI Connector for Atlas is only available for M10+ clusters.
biConnector.enabled	boolean	Optional	Specifies whether or not BI Connector for Atlas is enabled on the cluster. Set to true to enable BI Connector for Atlas. Set to false to disable BI Connector for Atlas.
biConnector.readPreference	string	Optional	Specifies the read preference to be used by BI Connector for Atlas on the cluster. Each BI Connector for Atlas read preference contains a distinct combination of readPreference and readPreferenceTags options. For details on BI Connector for Atlas read preferences, refer to the BI Connector Read Preferences Table. Set to "primary" to have BI Connector for Atlas read from the primary. Set to "secondary" to have BI Connector for Atlas read from a secondary member. Default if there are no analytics nodes in the cluster. Set to "analytics" to have BI Connector for Atlas read from an analytics node. Default if the cluster contains analytics nodes. Note To set the readPreference value to "analytics", the cluster must have at least one analytics node. If the readPreference value is analytics, you cannot remove all analytics nodes from the cluster.
clusterType	string	Conditional	Specifies the type of the cluster that you want to modify. You cannot convert a sharded cluster deployment to a replica set deployment. When should you use clusterType? Condition Necessity You set replicationSpecs. Required You are deploying Global Clusters. Required You are deploying non-Global replica sets and sharded clusters. Optional Accepted values include: Value Cluster Type REPLICASET replica set SHARDED sharded cluster GEOSHARDED Global Cluster
diskSizeGB	double	Conditional	When should you use diskSizeGB? This setting: Cannot be used with clusters with local NVMe SSDs Cannot be used with Azure clusters Must be used when replicationSpecs is set The size in gigabytes of the server’s root volume. You can add capacity by increasing this number, up to a maximum possible value of 4096 (i.e., 4 TB). This value must be a positive integer. The minimum disk size for dedicated clusters is 10GB for AWS and GCP, and 32GB for Azure. If you specify diskSizeGB with a lower disk size, Atlas defaults to the minimum disk size value. Important Atlas calculates storage charges differently depending on whether you choose the default value or a custom value. For details, see Storage Capacity. Note The maximum value for disk storage cannot exceed 50 times the maximum RAM for the selected cluster tier. If you require additional storage space beyond this limitation, consider upgrading your cluster to a higher tier.
encryptionAtRestProvider	string	Optional	Set the Encryption at Rest parameter to one of the following: AWS GCP Azure NONE Specify AWS to enable Encryption at Rest using the Atlas project AWS Key Management System settings. The cluster must meet the following requirements: Parameter Requirement providerSettings .instanceSizeName M10 or greater backupEnabled false or omitted For complete documentation on Encryption at Rest restrictions, see Prerequisites. You must configure encryption at rest for the Atlas project before enabling it on any cluster in the project. For complete documentation on configuring Encryption at Rest, see Encryption at Rest using Customer Key Management. Specify GCP to enable Encryption at Rest using the Atlas project GCP Key Management System settings. The cluster must meet the following requirements: Parameter Requirement providerSettings .instanceSizeName M10 or greater backupEnabled false or omitted For complete documentation on Encryption at Rest restrictions, see Prerequisites. You must configure encryption at rest for the Atlas project before enabling it on any cluster in the project. For complete documentation on configuring Encryption at Rest, see Encryption at Rest using Customer Key Management. Specify AZURE to enable Encryption at Rest using the Atlas project Azure Key Management System settings. The cluster must meet the following requirements: Parameter Requirement providerSettings .instanceSizeName M10 or greater backupEnabled false or omitted For complete documentation on Encryption at Rest restrictions, see Prerequisites. You must configure encryption at rest for the Atlas project before enabling it on any cluster in the project. For complete documentation on configuring Encryption at Rest, see Encryption at Rest using Customer Key Management. Specify NONE to disable Encryption at rest.
name	string	Required	Name of the cluster as it appears in Atlas. Once the cluster is created, its name cannot be changed.
mongoDBMajorVersion	string	Optional	Version of the cluster to deploy. Atlas supports the following MongoDB versions for M10+ clusters: 3.4 3.6 4.0 You must set this value to 4.0 if providerSettings.instanceSizeName is either M2 or M5. Atlas always deploys the cluster with the latest stable release of the specified version. You can upgrade to a newer version of MongoDB when you modify a cluster.
numShards	integer	Conditional	Selects whether the cluster is a replica set or a sharded cluster. Important If you use the replicationSpecs parameter, you must set numShards. If this is set to 1, the cluster is a replica set. For more information on MongoDB replica sets, see Replication in the MongoDB manual. If this is set to 2 or higher, the cluster is a sharded cluster with the number of shards specified. For more information on sharded clusters, see Sharding in the MongoDB manual. For details on how this setting affects costs, see Number of Servers. The possible values are 1 through 50, inclusive. The default value is 1. Note Do not include in the request body for Global Clusters.
providerBackupEnabled	boolean	Optional	Applicable only for M10+ clusters. Flag indicating if the cluster uses Cloud Provider Snapshots for backups. If true, the cluster uses Cloud Provider Snapshots for backups. If providerBackupEnabled and backupEnabled are false, the cluster does not use Atlas backups. You cannot enable cloud provider snapshots if you have an existing cluster in the project with Continuous Backups enabled. Important You must set this value to true for NVMe clusters.
providerSettings	document	Required	Configuration for the provisioned servers on which MongoDB runs. The available options are specific to the cloud service provider.
providerSettings .backingProviderName	string	Conditional	Cloud service provider on which the server for a multi-tenant cluster is provisioned. This setting is only valid when providerSetting.providerName is TENANT and providerSetting.instanceSizeName is M2 or M5. The possible values are: AWS - Amazon AWS GCP - Google Cloud Platform AZURE - Microsoft Azure
providerSettings .diskIOPS	integer	AWS Optional	Note Requires that providerSettings.instanceSizeName be M30 or greater. Note This option is not available for clusters with local NVMe SSDs. The maximum input/output operations per second (IOPS) the system can perform. The possible values depend on the selected providerSettings.instanceSizeName and diskSizeGB. To view the possible range of IOPS values for the selected instance size and storage capacity: Open the Atlas web interface. Select Build a New Cluster. Under Cloud Provider & Region, select AWS. Under Cloud Provider & Region, select the region corresponding to your configured providerSettings.regionName. Under Cluster Tier, select the instance size corresponding to your configured providerSettings.instanceSizeName. Under Cluster Tier, set the Storage Capacity slider to your configured diskSizeGB. Alternatively, input the exact value of diskSizeGB in the input box to the right of the slider. You can see the available IOPS range by checking the Provision IOPS box. Note If you set the diskIOPS value to a value higher than the default value for the selected volume size, Atlas automatically sets providerSettings.volumeType to PROVISIONED. If you manually set diskIOPS to the default value, you must specify providerSettings.volumeType to be either PROVISIONED or STANDARD. The default value for providerSettings.diskIOPS is the same as the instance size’s Standard IOPS value, as viewable in the Atlas interface. Changing this value affects the cost of running the cluster as described in the billing documentation. Atlas enforces the following minimum ratios by cluster tier to facilitate consistent network performance with large datasets. Disk Capacity to RAM: -M40: 3:1 M40+: 50:1 M50+: 100 to 1 For example, a cluster with 50 GB storage requires a value for IOPS of at least 150. To support 3 TB of disk capacity, you must select a cluster tier with at least 32 GB of RAM (M50 or higher).
providerSettings .diskTypeName	string	Azure Required	Azure disk type of the server’s root volume. If omitted, Atlas uses the default disk type for the selected providerSettings.instanceSizeName. The following table lists the possible values for this field, and their corresponding storage size. diskTypeName Storage Size P4 1 32GB P6 64GB P10 2 128GB P20 512GB P30 1024GB P40 2048GB P50 4095GB 1 Default for M20 and M30 Azure instances 2 Default for M40+ Azure instances
providerSettings .encryptEBSVolume	boolean	AWS Optional	If enabled, the Amazon EBS encryption feature encrypts the server’s root volume for both data at rest within the volume and for data moving between the volume and the instance. Note This setting is always enabled for clusters with local NVMe SSDs. The default value is true.
providerSettings .instanceSizeName	string	Required	Atlas provides different instance sizes, each with a default storage capacity and RAM size. The instance size you select is used for all the data-bearing servers in your cluster. For definitions of data-bearing servers, see Number of Servers. Atlas supports the following instance sizes. Atlas supports deploying M2 and M5 instances into a subset of available regions. The documentation for providersettings.regionName includes a list of these regions. Instance sizes with _NVME appended (for example: M40_NVME) use locally attached NVMe storage for exceptional performance with the most IO-intensive workloads. AWS Azure GCP Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 10GB 2GB M20 20GB 4GB M30 40GB 8GB M40 or R40 80GB 16GB M40_NVME 380GB 15.25GB M50 or R50 160GB 32GB M50_NVME 760GB 30.5GB M60 or R60 320GB 64GB M60_NVME 1.6TB 61GB R80 750GB 122GB M80_NVME 1.6TB 122GB M100 1TB 160GB M140 1 1TB 192GB M200 or R200 1.5TB 256GB M200_NVME 3.1TB 244GB M300 1 2TB 384GB R400 3TB 488GB M400_NVME 2 4TB 512GB 1 Only available if providerSettings.regionName is EU-WEST-3 (Paris). 2 Available only in the following regions: US_EAST_1 US_EAST_2 US_WEST_2 EU_WEST_1 EU_CENTRAL_1 AP_NORTHEAST_1 Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 32GB 2GB M20 32GB 4GB M30 32GB 8GB M40 128GB 16GB M50 128GB 32GB M60 128GB 64GB M80 256GB 128GB M200 256GB 256GB Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 10GB 1.70GB M20 20GB 3.75GB M30 40GB 7.5GB M40 80GB 15GB M50 160GB 30GB M60 320GB 60GB M80 750GB 120GB M200 1 1.5TB 240GB M300 1 2.2TB 360GB 1 Not available if providerSettings.regionName is SOUTH_AMERICA_EAST_1 , EUROPE_WEST_3, NORTHEASTERN_ASIA_PACIFIC, or AUSTRALIA_SOUTHEAST_1 Important M2 and M5 instance sizes are multi-tenant deployments. You must set providerSettings.providerName to TENANT and specify the cloud service provider in providerSettings.backingProviderName.
providerSettings .providerName	string	Required	Cloud service provider on which the servers are provisioned. The possible values are: AWS - Amazon AWS GCP - Google Cloud Platform AZURE - Microsoft Azure TENANT - A multi-tenant deployment on one of the supported cloud service providers. Only valid when providerSettings.instanceSizeName is either M2 or M5. Important M2 and M5 instance sizes are multi-tenant deployments. You must set providerSettings.providerName to TENANT and specify the cloud service provider in providerSettings.backingProviderName.
providerSettings .regionName	string	Conditional	Required if replicationSpecs array is empty This field is required if you have not set any values in the replicationSpecs array. Physical location of your MongoDB cluster. The region you choose can affect network latency for clients accessing your databases. Do not specify this field when creating a multi-region cluster using the replicationSpec document or a Global Cluster with the replicationSpecs array. During deployment of an M10+ dedicated paid cluster, Atlas creates a VPC for the selected provider and region or regions if no existing VPC or VPC peering connection exists for that provider and region. Atlas assigns the VPC a Classless Inter-Domain Routing (CIDR) block. For clusters deployed on AWS, if you want to create a VPC peering connection to an AWS VPC and require a specific CIDR block for a given region, you must create a VPC connection before deploying the cluster. See Set up a Network Peering Connection for for complete documentation on VPC peering connections. Important Multi-region clusters require one VPC peering connection for each region. MongoDB nodes can use only the peering connection that resides in the same region as the nodes to communicate with the peered VPC. Select your cloud provider’s tab for example cluster region names: AWS Azure GCP US_EAST_1 US_WEST_2 EU_WEST_1 For a complete list of supported AWS regions, see Amazon Web Services (AWS). US_EAST_2 US_WEST EUROPE_NORTH For a complete list of supported Azure regions, see Microsoft Azure. CENTRAL_US WESTERN_EUROPE EASTERN_ASIA_PACIFIC For a complete list of supported GCP regions, see Google Cloud Platform (GCP).
providerSettings .volumeType	string	AWS Optional	Possible values are: Volume Type providerSettings.diskIOPS Value STANDARD Must not exceed the default IOPS rate for the selected volume size. PROVISIONED Must fall within the allowable IOPS range for the selected volume size.
replicationFactor	number	Optional	Use replicationSpecs replicationFactor is deprecated. Use replicationSpecs. Number of replica set members. Each member keeps a copy of your databases, providing high availability and data redundancy. The possible values are 3, 5, or 7. The default value is 3. Do not specify this field when creating a multi-region cluster using the replicationSpec document. If your cluster is a sharded cluster, each shard is a replica set with the specified replication factor. For information on how the replication factor affects costs, see Number of Servers. For more information on MongoDB replica sets, see Replication in the MongoDB manual. Atlas ignores this value if you pass the replicationSpec document.
replicationSpec	document	Optional	Use replicationSpecs replicationSpec is deprecated. Use replicationSpecs. Configuration of each region in a multi-region cluster. Each element in this document represents a region where Atlas deploys your cluster. For single-region clusters, you can either specify the providerSettings.regionName and replicationFactor, or you can use the replicationSpec document to define a single region. For multi-region clusters, omit the providerSettings.regionName field. For Global Clusters, specify the replicationSpecs parameter rather than a replicationSpec parameter. Important You must order each element in this document by replicationSpec.<region>.priority descending. Use the replicationSpecs parameter to create a Global Cluster. Note You cannot specify both the replicationSpec and replicationSpecs parameters in the same request body.
replicationSpec .<region>	document	Optional	Physical location of the region. Replace <region> with the name of the region. Each <region> document describes the region’s priority in elections and the number and type of MongoDB nodes Atlas deploys to the region. You must order each <region> by replicationSpec.priority descending. You must specify at least one replicationSpec.<region> document. For each <region> document, you must specify the electableNodes, priority, and readOnlyNodes fields. During deployment of an M10+ dedicated paid cluster, Atlas creates a VPC for the selected provider and region or regions if no existing VPC or VPC peering connection exists for that provider and region. Atlas assigns the VPC a Classless Inter-Domain Routing (CIDR) block. For clusters deployed on AWS, if you want to create a VPC peering connection to an AWS VPC and require a specific CIDR block for a given region, you must create a VPC connection before deploying the cluster. See Set up a Network Peering Connection for for complete documentation on VPC peering connections. Important Multi-region clusters require one VPC peering connection for each region. MongoDB nodes can use only the peering connection that resides in the same region as the nodes to communicate with the peered VPC. Select your cloud provider’s tab for example cluster region names: AWS Azure GCP US_EAST_1 US_WEST_2 EU_WEST_1 For a complete list of supported AWS regions, see Amazon Web Services (AWS). US_EAST_2 US_WEST EUROPE_NORTH For a complete list of supported Azure regions, see Microsoft Azure. CENTRAL_US WESTERN_EUROPE EASTERN_ASIA_PACIFIC For a complete list of supported GCP regions, see Google Cloud Platform (GCP).
replicationSpec .<region> .electableNodes	integer	Optional	Number of electable nodes for Atlas to deploy to the region. Electable nodes can become the primary and can facilitate local reads. The total number of electableNodes across all replicationSpec.<region> document must be 3, 5, or 7. Specify 0 if you do not want any electable nodes in the region. You cannot create electable nodes if the replicationSpec.<region>.priority is 0.
replicationSpec .<region> .priority	integer	Optional	Election priority of the region. For regions with only replicationSpec.<region>.readOnlyNodes, set this value to 0. For regions where replicationSpec.<region>.electableNodes is at least 1, each replicationSpec.<region> must have a priority of exactly one (1) less than the previous region. The first region must have a priority of 7. The lowest possible priority is 1. The priority 7 region identifies the Preferred Region of the cluster. Atlas places the primary node in the Preferred Region. Priorities 1 through 7 are exclusive - no more than one region per cluster can be assigned a given priority. Example If you have three regions, their priorities would be 7, 6, and 5 respectively. If you added two more regions for supporting electable nodes, the priorities of those regions would be 4 and 3 respectively.
replicationSpec .<region> .readOnlyNodes	integer	Optional	Number of read-only nodes for Atlas to deploy to the region. Read-only nodes can never become the primary, but can facilitate local-reads. Specify 0 if you do not want any read-only nodes in the region.
replicationSpec .<region> .analyticsNodes	integer	Optional	The number of analytics nodes for Atlas to deploy to the region. Analytics nodes are useful for handling analytic data such as reporting queries from BI Connector for Atlas. Analytics nodes are read-only, and can never become the primary. If you do not specify this option, no analytics nodes are deployed to the region.
replicationSpecs	array of documents	Conditional	Configuration for cluster regions. When should you use replicationSpecs? Condition Necessity Values You are deploying Global Clusters. Required Each document in the array represents a zone where Atlas deploys your cluster’s nodes. You are deploying non-Global replica sets and sharded clusters. Optional This array has one document representing where Atlas deploys your cluster’s nodes. You must specify all parameters in replicationSpecs document array. What parameters depend on replicationSpecs? If you set replicationSpecs, you must: Set clusterType Set numShards Not set replicationSpec Not use clusters with local NVMe SSDs Not use Azure clusters
replicationSpecs[n] .id	string	Conditional	Unique identifer of the replication document for a zone in a Global Cluster. When is this value needed? Condition Necessity Existing zones included in a cluster modification request body. Required Adding a new zone to an existing Global Cluster. Optional Warning Atlas deletes any existing zones in a Global Cluster that are not included in a cluster modification request.
replicationSpecs[n] .numShards	integer	Required	Number of shards to deploy in the specified zone.
replicationSpecs[n] .regionsConfig	document	Optional	Physical location of the region. Each regionsConfig document describes the region’s priority in elections and the number and type of MongoDB nodes Atlas deploys to the region. You must order each regionsConfigs document by regionsConfig.priority, descending. During deployment of an M10+ dedicated paid cluster, Atlas creates a VPC for the selected provider and region or regions if no existing VPC or VPC peering connection exists for that provider and region. Atlas assigns the VPC a Classless Inter-Domain Routing (CIDR) block. For clusters deployed on AWS, if you want to create a VPC peering connection to an AWS VPC and require a specific CIDR block for a given region, you must create a VPC connection before deploying the cluster. See Set up a Network Peering Connection for for complete documentation on VPC peering connections. Important Multi-region clusters require one VPC peering connection for each region. MongoDB nodes can use only the peering connection that resides in the same region as the nodes to communicate with the peered VPC. Select your cloud provider’s tab for example cluster region names: AWS Azure GCP US_EAST_1 US_WEST_2 EU_WEST_1 For a complete list of supported AWS regions, see Amazon Web Services (AWS). US_EAST_2 US_WEST EUROPE_NORTH For a complete list of supported Azure regions, see Microsoft Azure. CENTRAL_US WESTERN_EUROPE EASTERN_ASIA_PACIFIC For a complete list of supported GCP regions, see Google Cloud Platform (GCP).
replicationSpecs[n] .regionsConfig .electableNodes	integer	Optional	Number of electable nodes for Atlas to deploy to the region. Electable nodes can become the primary and can facilitate local reads.
replicationSpecs[n] .regionsConfig .readOnlyNodes	integer	Optional	Number of read-only nodes for Atlas to deploy to the region. Read-only nodes can never become the primary, but can facilitate local-reads. Specify 0 if you do not want any read-only nodes in the region.
replicationSpecs[n] .regionsConfig .analyticsNodes	integer	Optional	The number of analytics nodes for Atlas to deploy to the region. Analytics nodes are useful for handling analytic data such as reporting queries from BI Connector for Atlas. Analytics nodes are read-only, and can never become the primary. If you do not specify this option, no analytics nodes are deployed to the region.
replicationSpecs[n] .regionsConfig .priority	integer	Optional	Election priority of the region. For regions with only read-only nodes, set this value to 0.
replicationSpecs[n] .zoneName	string	Optional	Name for the zone in a Global Cluster.

Response Elements

Name	Type	Description
autoScaling	document	Contains the diskGBEnabled field which specifies whether to enable or disable disk auto-scaling.
autoScaling.diskGBEnabled	boolean	Specifies whether disk auto-scaling is enabled.
backupEnabled	boolean	If true, the cluster uses Atlas Continuous Backups for backing up cluster data.
biConnector	document	Information on whether BI Connector for Atlas is enabled or disabled for the cluster. BI Connector for Atlas is only available for M10+ clusters. The biConnector document includes the following fields: Field Description enabled true if BI Connector for Atlas is enabled. false if BI Connector for Atlas is disabled. readPreference "primary" if BI Connector for Atlas reads from the primary. "secondary" if BI Connector for Atlas reads from a secondary. "analytics" if BI Connector for Atlas reads from an analytics node.
clusterType	string	Specifies the type of the cluster: Value Description REPLICASET replica set SHARDED sharded cluster GEOSHARDED Global Cluster
diskSizeGB	double	AWS / GCP Only The size in gigabytes of the server’s root volume. You can add capacity by increasing this number, up to a maximum possible value of 4096 (i.e., 4 TB). Each instance size has its own default value. To view default values: Open the Atlas web interface. Click the button to add a new cluster. View the available default sizes. Close the window without saving changes.
encryptionAtRestProvider	string	Encryption at Rest is enabled or disabled. For complete documentation on Encryption-at-Rest restrictions, see Prerequisites. You must configure encryption at rest for the Atlas project before enabling it on any cluster in the project. For complete documentation on configuring Encryption at Rest, see Customer Key Management with AWS KMS.
groupId	string	Unique identifier of the project the cluster belongs to.
id	string	Unique identifier of the cluster.
mongoDBVersion	string	Version of MongoDB the cluster runs, in <major version>.<minor version> format.
mongoDBMajorVersion	string	Major version of MongoDB the cluster runs: 3.4 3.6 4.0
mongoURI	string	Base connection string for the cluster. Atlas only displays this field after the cluster is operational, not while it builds the cluster.
mongoURIUpdated	string	Lists when the connection string was last updated. The connection string changes, for example, if you change a replica set to a sharded cluster. Atlas only displays this field after the cluster is operational, not while it builds the cluster.
mongoURIWithOptions	string	connection string for connecting to the Atlas cluster. Includes the replicaSet, ssl, and authSource query parameters in the connection string with values appropriate for the cluster. To review the connection string format, see the connection string format documentation. To add MongoDB users to a Atlas project, see Configure MongoDB Users. Atlas only displays this field after the cluster is operational, not while it builds the cluster.
name	string	Name of the cluster as it appears in Atlas.
numShards	integer	Specifies the number of shards for a sharded cluster. If this is set to 1, the cluster is a replica set. If this is set to 2 or higher, the cluster is a sharded cluster with the number of shards specified. For details on how this setting affects costs, see Number of Servers. The possible values are 1 through 12. Note Not present in the response body for Global Clusters.
paused	boolean	Flag that indicates whether the cluster is paused or not.
providerBackupEnabled	boolean	If true, the cluster uses Cloud Provider Snapshots for backups. If providerBackupEnabled and backupEnabled are false, the cluster does not use Atlas backups.
providerSettings	document	Configuration for the provisioned servers on which MongoDB runs. The available options are specific to the cloud service provider.
providerSettings .providerName	string	Cloud service provider on which the servers are provisioned. The possible values are: AWS - Amazon AWS GCP - Google Cloud Platform AZURE - Microsoft Azure TENANT - Indicates an M2 or M5 multi-tenant cluster. See providerSettings.backingProviderName for the cloud service provider on which the server hosting the cluster is provisioned.
providerSettings .backingProviderName	string	Cloud service provider on which the multi-tenant server is provisioned. Only visible if providerSettings.providerName is TENANT. The possible values are: AWS - Amazon AWS GCP - Google Cloud Platform AZURE - Microsoft Azure
providerSettings .regionName	string	Physical location of your MongoDB cluster. The region you choose can affect network latency for clients accessing your databases. For a complete list of region name values, refer to the the cloud provider reference pages: AWS GCP Azure For multi-region clusters, see replicationSpec.<region>.
providerSettings .instanceSizeName	string	Name of the instance size used for the Atlas cluster. Atlas supports the following instance sizes. Atlas supports deploying M2 and M5 instances into a subset of available regions. The documentation for providersettings.regionName includes a list of these regions. Instance sizes with _NVME appended (for example: M40_NVME) use locally attached NVMe storage for exceptional performance with the most IO-intensive workloads. AWS Azure GCP Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 10GB 2GB M20 20GB 4GB M30 40GB 8GB M40 or R40 80GB 16GB M40_NVME 380GB 15.25GB M50 or R50 160GB 32GB M50_NVME 760GB 30.5GB M60 or R60 320GB 64GB M60_NVME 1.6TB 61GB R80 750GB 122GB M80_NVME 1.6TB 122GB M100 1TB 160GB M140 1 1TB 192GB M200 or R200 1.5TB 256GB M200_NVME 3.1TB 244GB M300 1 2TB 384GB R400 3TB 488GB M400_NVME 2 4TB 512GB 1 Only available if providerSettings.regionName is EU-WEST-3 (Paris). 2 Available only in the following regions: US_EAST_1 US_EAST_2 US_WEST_2 EU_WEST_1 EU_CENTRAL_1 AP_NORTHEAST_1 Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 32GB 2GB M20 32GB 4GB M30 32GB 8GB M40 128GB 16GB M50 128GB 32GB M60 128GB 64GB M80 256GB 128GB M200 256GB 256GB Instance Size Default Storage Default RAM M2 2GB Shared M5 5GB Shared M10 10GB 1.70GB M20 20GB 3.75GB M30 40GB 7.5GB M40 80GB 15GB M50 160GB 30GB M60 320GB 60GB M80 750GB 120GB M200 1 1.5TB 240GB M300 1 2.2TB 360GB 1 Not available if providerSettings.regionName is SOUTH_AMERICA_EAST_1 , EUROPE_WEST_3, NORTHEASTERN_ASIA_PACIFIC, or AUSTRALIA_SOUTHEAST_1 Important M2 and M5 instance sizes are multi-tenant deployments. You must set providerSettings.providerName to TENANT and specify the cloud service provider in providerSettings.backingProviderName.
providerSettings .diskIOPS	integer	Maximum input/output operations per second (IOPS) the system can perform.
providerSettings .diskTypeName	string	Azure Only The disk type of the server’s root volume. The following table lists the possible values for this field, and their corresponding storage size. diskTypeName Storage Size P4 1 32GB P6 64GB P10 2 128GB P20 512GB P30 1024GB P40 2048GB P50 4095GB 1 Default for M20 and M30 Azure instances 2 Default for M40+ Azure instances
providerSettings .encryptEBSVolume	boolean	AWS only. If enabled, the Amazon EBS encryption feature encrypts the server’s root volume for both data at rest within the volume and for data moving between the volume and the instance.
replicationFactor	number	Number of replica set members. Each member keeps a copy of your databases, providing high availability and data redundancy. For multi-region clusters, add the total number of replicationSpec.<region>.electableNodes to calculate the replication factor of the cluster. If your cluster is a sharded cluster, each shard is a replica set with the specified replication factor. For information on how the replication factor affects costs, see Number of Servers. For more information on MongoDB replica sets, see Replication in the MongoDB manual. The possible values are 3, 5, or 7.
replicationSpec	document	Configuration of each region in the cluster. Each element in this document represents a region where Atlas deploys your cluster.
replicationSpec .<region>	document	Physical location of the region. The <region> string corresponds to a region where Atlas deploys your cluster. Each <region> document describes the region’s priority in elections and the number and type of MongoDB nodes Atlas deploys to the region.
replicationSpec .<region> .electableNodes	integer	Number of electable nodes in the region. Electable nodes can become the primary and can facilitate local reads.
replicationSpec .<region> .priority	integer	Election priority of the region. The highest possible priority is 7, which identifies the Preferred Region of the cluster. Atlas places the primary node in the Preferred Region. The lowest possible priority is 0, which identifies a read only region. You can have any number of priority 0 read only regions. Priorities 1 through 7 are exclusive - no more than one region per cluster can be assigned a given priority.
replicationSpec .<region> .readOnlyNodes	integer	Number of read-only nodes in the region. Read-only nodes can never become the primary, but can facilitate local-reads.
replicationSpec.<region>.analyticsNodes	integer	The number of analytics nodes in the region. Analytics nodes are useful for handling analytic data such as reporting queries from BI Connector for Atlas. Analytics nodes are read-only, and can never become the primary.
replicationSpecs	array of documents	Configuration for each zone in a Global Cluster. Each document in this array represents a zone where Atlas deploys nodes for your Global Cluster.
replicationSpecs[n] .id	string	Unique identifier of the replication document.
replicationSpecs[n] .zoneName	string	Name for the zone.
replicationSpecs[n] .numShards	integer	Number of shards to deploy in the specified zone.
replicationSpecs[n] .regionsConfig	document	Physical location of the region. Each regionsConfig document describes the region’s priority in elections and the number and type of MongoDB nodes Atlas deploys to the region.
srvAddress	string	Connection string for connecting to the Atlas cluster. The +srv modifier forces the connection to use TLS/SSL. See the mongoURI for additional options.
stateName	string	Current state of the cluster. The possible states are: IDLE CREATING UPDATING DELETING DELETED REPAIRING

Example

Request

• Create Single Region
• Create Multi-Region
• Create Global

copy

curl --user "{username}:{apiKey}" --digest \
  --header "Content-Type: application/json" \
  --include \
  --request POST "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters" \
  --data '
    {
      "name" : "DataStore",
      "diskSizeGB" : 100,
      "numShards" : 1,
      "providerSettings" : {
        "providerName" : "AWS",
        "diskIOPS" : 300,
        "encryptEBSVolume" : false,
        "instanceSizeName" : "M40",
        "regionName" : "US_EAST_1"
      },
      "replicationFactor" : 3,
      "backupEnabled" : true,
      "autoScaling":{"diskGBEnabled":true}
    }'

copy

curl --user "{username}:{apiKey}" --digest \
  --header "Content-Type: application/json" \
  --include \
  --request POST "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters" \
  --data '
    {
      "name" : "DataStore2",
      "diskSizeGB" : 100,
      "numShards" : 1,
      "providerSettings" : {
        "providerName" : "AWS",
        "diskIOPS" : 300,
        "instanceSizeName" : "M10"
      },
      "replicationSpec": {
          "US_EAST_1": {
            "electableNodes": 3,
            "priority": 7,
            "readOnlyNodes" : 0
          },
          "US_EAST_2": {
            "electableNodes": 2,
            "priority" : 6,
            "readOnlyNodes" : 0
          },
          "US_WEST_1": {
            "electableNodes" : 2,
            "priority" : 5,
            "readOnlyNodes": 2
          }
      },
      "backupEnabled" : true
    }'

copy

curl --user "{username}:{apiKey}" --digest \
   --header "Content-Type: application/json" \
   --include \
   --request POST "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters?pretty=true" \
   --data '
     {
       "name": "DataStore3",
       "diskSizeGB": 80,
        "providerSettings": {
          "providerName": "AWS",
          "diskIOPS": "240",
          "instanceSizeName": "M10"
        },
        "replicationSpecs": [{
          "zoneName": "Zone 1",
          "numShards": 2,
          "regionsConfig": {
            "US_EAST_1": {
              "electableNodes": 3,
              "readOnlyNodes": 0,
              "priority": 7
            }
          }
        },
        {
          "zoneName": "Zone 2",
          "numShards": 2,
          "regionsConfig": {
            "EU_CENTRAL_1": {
              "electableNodes": 3,
              "readOnlyNodes": 0,
              "priority": 7
            }
          }
        }],
        "backupEnabled": false,
        "providerBackupEnabled" : true,
        "clusterType": "GEOSHARDED"
     }'

Response

{
  "autoScaling":{
     "diskGBEnabled":true
  },
  "backupEnabled":true,
  "biConnector":{
     "enabled":false,
     "readPreference":"secondary"
  },
  "clusterType":"REPLICASET",
  "diskSizeGB":100.0,
  "encryptionAtRestProvider":"NONE",
  "groupId":"{group-id}",
  "id":"5c87f79087d9d612a175f46d",
  "links":[
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore",
        "rel":"self"
     },
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore/restoreJobs",
        "rel":"http://mms.mongodb.com/restoreJobs"
     },
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore/snapshots",
        "rel":"http://mms.mongodb.com/snapshots"
     }
  ],
  "mongoDBMajorVersion":"4.0",
  "mongoDBVersion":"4.0.6",
  "mongoURIUpdated":"2019-03-12T18:16:48Z",
  "name":"DataStore",
  "numShards":1,
  "paused":false,
  "providerBackupEnabled":false,
  "providerSettings":{
     "providerName":"AWS",
     "diskIOPS":300,
     "encryptEBSVolume":false,
     "instanceSizeName":"M40",
     "regionName":"US_EAST_1",
     "volumeType":"STANDARD"
  },
  "replicationFactor":3,
  "replicationSpec":{
     "US_EAST_1":{
        "analyticsNodes":0,
        "electableNodes":3,
        "priority":7,
        "readOnlyNodes":0
     }
  },
  "replicationSpecs":[
     {
        "id":"5c87f79087d9d612a175f46c",
        "numShards":1,
        "regionsConfig":{
           "US_EAST_1":{
              "analyticsNodes":0,
              "electableNodes":3,
              "priority":7,
              "readOnlyNodes":0
           }
        },
        "zoneName":"Zone 1"
     }
  ],
  "stateName":"CREATING"
}

{
  "autoScaling":{
     "diskGBEnabled":true
  },
  "backupEnabled":true,
  "biConnector":{
     "enabled":false,
     "readPreference":"secondary"
  },
  "clusterType":"REPLICASET",
  "diskSizeGB":100.0,
  "encryptionAtRestProvider":"NONE",
  "groupId":"{group-id}",
  "id":"5c87f50987d9d612a1739b89",
  "links":[
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore2",
        "rel":"self"
     },
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore2/restoreJobs",
        "rel":"http://mms.mongodb.com/restoreJobs"
     },
     {
        "href":"https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore2/snapshots",
        "rel":"http://mms.mongodb.com/snapshots"
     }
  ],
  "mongoDBMajorVersion":"4.0",
  "mongoDBVersion":"4.0.6",
  "mongoURIUpdated":"2019-03-12T18:06:01Z",
  "name":"DataStore2",
  "numShards":1,
  "paused":false,
  "providerBackupEnabled":false,
  "providerSettings":{
     "providerName":"AWS",
     "diskIOPS":300,
     "encryptEBSVolume":true,
     "instanceSizeName":"M10",
     "volumeType":"STANDARD"
  },
  "replicationSpec":{
     "US_EAST_1":{
        "analyticsNodes":0,
        "electableNodes":3,
        "priority":7,
        "readOnlyNodes":0
     },
     "US_EAST_2":{
        "analyticsNodes":0,
        "electableNodes":2,
        "priority":6,
        "readOnlyNodes":0
     },
     "US_WEST_1":{
        "analyticsNodes":0,
        "electableNodes":2,
        "priority":5,
        "readOnlyNodes":2
     }
  },
  "replicationSpecs":[
     {
        "id":"5c87f50887d9d612a1739b86",
        "numShards":1,
        "regionsConfig":{
           "US_EAST_1":{
              "analyticsNodes":0,
              "electableNodes":3,
              "priority":7,
              "readOnlyNodes":0
           },
           "US_EAST_2":{
              "analyticsNodes":0,
              "electableNodes":2,
              "priority":6,
              "readOnlyNodes":0
           },
           "US_WEST_1":{
              "analyticsNodes":0,
              "electableNodes":2,
              "priority":5,
              "readOnlyNodes":2
           }
        },
        "zoneName":"Zone 1"
     }
  ],
  "stateName":"CREATING"
}

{
  "autoScaling" : {
    "diskGBEnabled" : true
  },
  "backupEnabled" : false,
  "biConnector" : {
    "enabled" : false,
    "readPreference" : "secondary"
  },
  "clusterType" : "GEOSHARDED",
  "diskSizeGB" : 80.0,
  "encryptionAtRestProvider" : "NONE",
  "groupId" : "{group-id}",
  "id" : "5c87f04780eef53f47af4f8b",
  "links" : [ {
    "href" : "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore3",
    "rel" : "self"
  }, {
    "href" : "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore3/restoreJobs",
    "rel" : "http://mms.mongodb.com/restoreJobs"
  }, {
    "href" : "https://cloud.mongodb.com/api/atlas/v1.0/groups/{group-id}/clusters/DataStore3/snapshots",
    "rel" : "http://mms.mongodb.com/snapshots"
  } ],
  "mongoDBMajorVersion" : "4.0",
  "mongoDBVersion" : "4.0.6",
  "mongoURIUpdated" : "2019-03-12T17:45:43Z",
  "name" : "DataStore3",
  "paused" : false,
  "providerBackupEnabled" : true,
  "providerSettings" : {
    "providerName" : "AWS",
    "diskIOPS" : 240,
    "encryptEBSVolume" : true,
    "instanceSizeName" : "M10",
    "volumeType" : "STANDARD"
  },
  "replicationSpecs" : [ {
    "id" : "5c87f04680eef53f47af4f7d",
    "numShards" : 2,
    "regionsConfig" : {
      "US_EAST_1" : {
        "analyticsNodes" : 0,
        "electableNodes" : 3,
        "priority" : 7,
        "readOnlyNodes" : 0
      }
    },
    "zoneName" : "Zone 1"
  }, {
    "id" : "5c87f04680eef53f47af4f7e",
    "numShards" : 2,
    "regionsConfig" : {
      "EU_CENTRAL_1" : {
        "analyticsNodes" : 0,
        "electableNodes" : 3,
        "priority" : 7,
        "readOnlyNodes" : 0
      }
    },
    "zoneName" : "Zone 2"
  } ],
  "stateName" : "CREATING"
}

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