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Cloud Virtual Machine

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Glossary

API Category

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Last updated: 2026-01-29 15:51:31

Region APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeRegions Queries the list of regions 20
DescribeZones Queries a list of availability zones 20

Instance APIs

API Name Feature Frequency Limit (maximum requests per second)
RunInstances Creates instances 10
DescribeInstances Views the list of instances 40
DescribeInstanceFamilyConfigs Queries supported instance model families 10
DescribeInstancesOperationLimit Queries limitations on operations on an instance 10
InquiryPriceRunInstances Queries the price of creating instances 10
InquiryPriceRenewInstances Renewal instance inquiry 10
InquiryPriceResetInstance Queries the price of instance reinstallation 10
InquiryPriceResetInstancesType Queries the price of an instance with a new configuration 10
InquiryPriceModifyInstancesChargeType Modify the instance billing mode price inquiry 10
StartInstances Starts instances 10
RebootInstances Restarts instances 10
StopInstances Shuts down instances 10
RenewInstances Renew an instance 10
ResizeInstanceDisks Expands the disk capacity of an instance 10
ResetInstancesPassword Resets instance passwords 10
ModifyInstancesAttribute Modifies instance attributes 10
ModifyInstancesChargeType Modify the instance billing mode 10
ModifyInstancesRenewFlag Modifies the renewal flag of an instance 10
EnterRescueMode Enters the rescue mode 20
ExitRescueMode Exits the rescue mode 20
InquirePricePurchaseReservedInstancesOffering Queries the price of reserved instance offerings 20
InquiryPriceResizeInstanceDisks Queries the capacity price of an instance after disk expansion 10
ModifyInstancesDisasterRecoverGroup Adjust the distributed placement group of an instance 20
TerminateInstances Returns instances 10
ModifyInstancesProject Modifies the project of an instance 10
ResetInstancesType Changes the model of an instance 10
DescribeInstancesAttributes Obtains the attributes of specified instances in batches 20
DescribeInstancesStatus Views the list of instance status 40
DescribeReservedInstances Lists purchased reserved instances 10
DescribeReservedInstancesConfigInfos Queries reserved instance configurations 20
DescribeReservedInstancesOfferings Describes Reserved Instance offerings 10
DescribeZoneInstanceConfigInfos Queries the configurations of models in an availability zone 40
PurchaseReservedInstancesOffering Purchases Reserved Instances 10
ResetInstance Reinstalls the OS of an instance 10

CDH APIs

API Name Feature Frequency Limit (maximum requests per second)
AllocateHosts Creates CDH instances 10
ModifyHostsAttribute Modifies the attributes of a CDH instance 10
DescribeHosts Views the list of CDH instances 10

Cloud Hosting Cluster APIs

API Name Feature Frequency Limit (maximum requests per second)
ConfigureChcAssistVpc Configures the out-of-band network and deployment network of a CHC 20
ConfigureChcDeployVpc Configures the deployment network of a CHC host 20
DescribeChcDeniedActions Queries the actions not allowed for the specified CHC instances 20
ModifyChcAttribute Modifies the CHC host attributes 20
RemoveChcAssistVpc Removes the out-of-band network and deployment network of a CHC host 20
RemoveChcDeployVpc Removes the deployment network of a CHC 20
DescribeChcHosts Queries the details of CHC hosts 20

Placement Group APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeDisasterRecoverGroups Queries information on spread placement groups 10
DescribeDisasterRecoverGroupQuota Queries the quota of placement groups 20
CreateDisasterRecoverGroup Creates a spread placement group 10
ModifyDisasterRecoverGroupAttribute Modifies spread placement group attributes 10
DeleteDisasterRecoverGroups Deletes a spread placement group 10

Image APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeImages Views the list of images 40
DescribeImageSharePermission Views image sharing information 10
DescribeImportImageOs Queries the list of supported operating systems of imported images 288
DescribeImageQuota Queries image quota 10
ModifyImageSharePermission Modifies image sharing information 10
SyncImages Syncs an image 10
ModifyImageAttribute Modifies image attributes 10
DeleteImages Deletes images 10
ImportImage Imports images 10
ExportImages Exports custom images 20
CreateImage Creates an image 10
ConvertOperatingSystems Switches an operating system 20
DescribeImageFromFamily Queries available images within an image family 20

Key APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeKeyPairs Queries the list of key pairs 10
CreateKeyPair Creates a key pair 10
AssociateInstancesKeyPairs Associates a key with an instance 10
DisassociateInstancesKeyPairs Disassociates key pairs from instances 10
DeleteKeyPairs Deletes key pairs 10
ModifyKeyPairAttribute Modifies key pair attributes 10
ImportKeyPair Imports key pairs 10

Security Group APIs

API Name Feature Frequency Limit (maximum requests per second)
AssociateSecurityGroups Associates security groups with instances 10
DisassociateSecurityGroups Disassociates security groups from instances 10

Network APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeInternetChargeTypeConfigs Queries the network billing methods 10
InquiryPriceResetInstancesInternetMaxBandwidth Queries the price of public network bandwidth for an instance with a new maximum bandwidth 10
ResetInstancesInternetMaxBandwidth Changes the maximum public network bandwidth of an instance 10
ModifyInstancesVpcAttribute Modifies instance VPC attributes 10

Instance Launch Template APIs

API Name Feature Frequency Limit (maximum requests per second)
DescribeLaunchTemplates Queries instance launch templates 20
CreateLaunchTemplate Create an instance launch template 20
CreateLaunchTemplateVersion Creating a instance launch template version 20
DeleteLaunchTemplate Deleting an instance launch template 20
DeleteLaunchTemplateVersions Deletes one or more instance launch template versions 20
DescribeLaunchTemplateVersions Queries instance launch template versions 20
ModifyLaunchTemplateDefaultVersion Modifies the default version of the instance launch template 20

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