You can call this operation to query all instance types provided by Elastic Compute Service (ECS). You can also query information about a specific instance type.


The DescribeInstanceTypes operation is used to query only the specifications and performance information of instance types. To query instance types that are available in a region, call the DescribeAvailableResource operation.

To use special instance types such as instance types that are unavailable for purchase, submit a ticket.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes DescribeInstanceTypes

The operation that you want to perform. Set the value to DescribeInstanceTypes.

InstanceTypeFamily String No ecs.g6

The instance family to which the instance type belongs. For the valid values, see DescribeInstanceTypeFamilies.

For more information, see Instance families.

InstanceTypes.N RepeatList No ecs.g6.large

Instance type N. Valid values of N: 1 to 10. If this parameter is empty, information about all instance types is queried.

Response parameters

Parameter Type Example Description
InstanceTypes Array of InstanceType

Details about the instance types.

BaselineCredit Integer 4

The baseline vCPU computing performance (overall computing performance of all vCPUs) of the t5 or t6 burstable instance family.

CpuCoreCount Integer 2

The number of vCPUs.

DiskQuantity Integer 17

The maximum number of cloud disks that can be attached per instance.

EniIpv6AddressQuantity Integer 1

The maximum number of IPv6 addresses per elastic network interface (ENI).

EniPrivateIpAddressQuantity Integer 6

The maximum number of private IP addresses per ENI.

EniQuantity Integer 2

The maximum number of ENIs that can be bound per instance.

EniTotalQuantity Integer 0
Note This parameter is in invitational preview and unavailable.
EniTrunkSupported Boolean false
Note This parameter is in invitational preview and unavailable.
GPUAmount Integer 0

The number of GPUs.

GPUSpec String NVIDIA V100

The GPU type.

InitialCredit Integer 120

The initial vCPU credits of the t5 or t6 burstable instance family.

InstanceBandwidthRx Integer 1024000

The maximum inbound internal bandwidth. Unit: Kbit/s

InstanceBandwidthTx Integer 1024000

The maximum outbound internal bandwidth. Unit: Kbit/s

InstanceFamilyLevel String EnterpriseLevel

The level of the instance family. Valid values:

InstancePpsRx Long 300000

The inbound packet forwarding rate over the internal network. Unit: pps.

InstancePpsTx Long 300000

The outbound packet forwarding rate over the internal network. Unit: pps.

InstanceTypeFamily String ecs.g6

The instance family.

InstanceTypeId String ecs.g6.large

The ID of the instance type.

LocalStorageAmount Integer 1

The number of local disks attached per instance.

LocalStorageCapacity Long 5000

The capacity of each local disk attached per instance. Unit: GiB.

LocalStorageCategory String local_ssd_pro

The category of the local disks. For more information, see Local disks. Valid values:

  • local_hdd_pro: local SATA HDDs, which are attached to d1ne or d1 instances
  • local_ssd_pro: local NVMe SSDs, which are attached to i2, i2g, i1, ga1, or gn5 instances
MaximumQueueNumberPerEni Integer 2

The maximum number of queues per ENI.

MemorySize Float 8.0

The memory size. Unit: GiB.

PrimaryEniQueueNumber Integer 2

The default number of queues supported by the primary ENI.

SecondaryEniQueueNumber Integer 2

The default number of queues supported by the secondary ENI.

TotalEniQueueQuantity Integer 4

The maximum number of queues on ENIs that the instance type supports.

RequestId String 00827261-20B7-4562-83F2-4DF39876A45A

The ID of the request.


Sample requests
&<Common request parameters>

Sample success responses

XML format


JSON format

	"RequestId": "00827261-20B7-4562-83F2-4DF39876A45A",
	"InstanceTypes": {
		"InstanceType": [
				"MemorySize": 8,
				"InstancePpsTx": 300000,
				"MaximumQueueNumberPerEni": 2,
				"EniIpv6AddressQuantity": 1,
				"PrimaryEniQueueNumber": 2,
				"CpuCoreCount": 2,
				"TotalEniQueueQuantity": 4,
				"EniTotalQuantity": 2,
				"EniTrunkSupported": false,
				"InstanceTypeFamily": "ecs.g6",
				"InstancePpsRx": 300000,
				"EniQuantity": 2,
				"InstanceBandwidthRx": 1024000,
				"GPUAmount": 0,
				"InstanceBandwidthTx": 1024000,
				"SecondaryEniQueueNumber": 2,
				"DiskQuantity": 17,
				"LocalStorageCategory": "",
				"GPUSpec": "",
				"InstanceFamilyLevel": "EnterpriseLevel",
				"InstanceTypeId": "ecs.g6.large",
				"EniPrivateIpAddressQuantity": 6

Error codes

For a list of error codes, visit the API Error Center.