GET

/#Action=AllocateHosts

http://ec2.{region}.amazonaws.com/#Action=AllocateHosts

Allocates a Dedicated Host to your account. At a minimum, specify the supported instance type or instance family, the Availability Zone in which to allocate the host, and the number of hosts to allocate.

Access Token Required: API Key

Query Params

AutoPlacementstring

Indicates whether the host accepts any untargeted instance launches that match its instance type configuration, or if it only accepts Host tenancy instance launches that specify its unique host ID. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-dedicated-hosts-work.html#dedicated-hosts-understanding"> Understanding auto-placement and affinity</a> in the Amazon EC2 User Guide. Default: <code>on</code>

Allowed:

AvailabilityZonestringrequired

The Availability Zone in which to allocate the Dedicated Host.

ClientTokenstring

Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Run_Instance_Idempotency.html">Ensuring Idempotency</a>.

InstanceTypestring

Specifies the instance type to be supported by the Dedicated Hosts. If you specify an instance type, the Dedicated Hosts support instances of the specified instance type only. If you want the Dedicated Hosts to support multiple instance types in a specific instance family, omit this parameter and specify InstanceFamily instead. You cannot specify InstanceType and InstanceFamily in the same request.

InstanceFamilystring

Specifies the instance family to be supported by the Dedicated Hosts. If you specify an instance family, the Dedicated Hosts support multiple instance types within that instance family. If you want the Dedicated Hosts to support a specific instance type only, omit this parameter and specify InstanceType instead. You cannot specify InstanceFamily and InstanceType in the same request.

Quantityintegerrequired

The number of Dedicated Hosts to allocate to your account with these parameters.

TagSpecificationarray

The tags to apply to the Dedicated Host during creation.

HostRecoverystring

Indicates whether to enable or disable host recovery for the Dedicated Host. Host recovery is disabled by default. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/dedicated-hosts-recovery.html"> Host recovery</a> in the Amazon EC2 User Guide. Default: <code>off</code>

Allowed:

OutpostArnstring

The Amazon Resource Name (ARN) of the Amazon Web Services Outpost on which to allocate the Dedicated Host.

HostMaintenancestring

Indicates whether to enable or disable host maintenance for the Dedicated Host. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/dedicated-hosts-maintenance.html">Host maintenance</a> in the Amazon EC2 User Guide.

Allowed:

Actionstringrequired

Allowed:

Versionstringrequired

Allowed:

Responses

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

Language

CredentialsAPI KEY

API Key

Enter token below to save for later

cURL Request

1curl --request GET \
2     --url 'http://ec2.{region}.amazonaws.com/#Action=AllocateHosts' \
3     --header 'accept: application/json' \
4     --header 'content-type: application/json'

Response

1{
2  "success": true,
3  "data": {
4    "id": "abc123",
5    "created_at": "2025-01-01T00:00:00Z"
6  }
7}