Payload with all body fields for MongoDB's "Create One Cluster" API - See https://docs.atlas.mongodb.com/reference/api/clusters-create-one/#request-body-parameters

createClusterPayload.json

{
  "autoScaling": {
    "compute": {
      "enabled": false,
      "scaleDownEnabled": false
    },
    "diskGBEnabled": true
  },
  "backupEnabled": false,
  "biConnector": {
    "enabled": false,
    "readPreference": "secondary"
  },
  "clusterType": "REPLICASET",
  "diskSizeGB": 100,
  "encryptionAtRestProvider": "AWS",
  "labels": [
    {
      "key": "example key",
      "value": "example value"
    }
  ],
  "mongoDBMajorVersion": "5.0",
  "name": "SingleRegionCluster",
  "numShards": 1,
  "pitEnabled": false,
  "providerBackupEnabled": true,
  "providerSettings": {
    "providerName": "AWS",
    "autoScaling": {
      "compute": {
        "maxInstanceSize": null,
        "minInstanceSize": null
      }
    },
    "diskIOPS": 300,
    "encryptEBSVolume": true,
    "instanceSizeName": "M40",
    "regionName": "US_EAST_1",
    "volumeType": "STANDARD"
  },
  "replicationFactor": 3,
  "replicationSpecs": [
    {
      "numShards": 1,
      "regionsConfig": {
        "US_EAST_1": {
          "analyticsNodes": 0,
          "electableNodes": 3,
          "priority": 7,
          "readOnlyNodes": 0
        }
      },
      "zoneName": "Zone 1"
    }
  ],
  "rootCertType": "ISRGROOTX1",
  "versionReleaseSystem": "LTS"
}