Welcome

This is the Amazon EC2 API Reference. It provides descriptions, API request parameters, and the XML response for each of the Amazon EC2 Query API actions. Note that the Amazon EC2 API includes actions for Amazon EC2 plus additional services, such as Amazon EBS and Amazon VPC. For more information, see Actions by service.

Alternatively, use one of the following methods to access the Amazon EC2 API, instead of using the Query API directly:

• AWS CLI Command Reference – ec2 commands

• AWS CloudFormation – Amazon EC2 resource type reference

• AWS Tools for PowerShell Cmdlet Reference – Amazon EC2 cmdlets

• AWS SDKs

How Do I?	Relevant Documentation
Learn about using the Query API	Making requests to the Amazon EC2 API
Learn about the permissions required to call an Amazon EC2 API action	Actions, resources, and condition keys for Amazon EC2
Get the list of API actions by service and resource	Actions by service
Get the alphabetical list of API actions	Actions
Get descriptions of the API error codes	Error codes for the Amazon EC2 API

Important

As of October 14, 2022, HTTP responses from the Amazon EC2 APIs no longer include a reason-phrase element. As recommended by RFC7230, you should ensure that your applications do not make use of the reason-phrase content. Ensure that your applications use the 3-digit status-code element included in the HTTP response instead.