Expand description

The AWS Budgets API enables you to use AWS Budgets to plan your service usage, service costs, and instance reservations. The API reference provides descriptions, syntax, and usage examples for each of the actions and data types for AWS Budgets.

Budgets provide you with a way to see the following information:

  • How close your plan is to your budgeted amount or to the free tier limits

  • Your usage-to-date, including how much you've used of your Reserved Instances (RIs)

  • Your current estimated charges from AWS, and how much your predicted usage will accrue in charges by the end of the month

  • How much of your budget has been used

AWS updates your budget status several times a day. Budgets track your unblended costs, subscriptions, refunds, and RIs. You can create the following types of budgets:

  • Cost budgets - Plan how much you want to spend on a service.

  • Usage budgets - Plan how much you want to use one or more services.

  • RI utilization budgets - Define a utilization threshold, and receive alerts when your RI usage falls below that threshold. This lets you see if your RIs are unused or under-utilized.

  • RI coverage budgets - Define a coverage threshold, and receive alerts when the number of your instance hours that are covered by RIs fall below that threshold. This lets you see how much of your instance usage is covered by a reservation.

Service Endpoint

The AWS Budgets API provides the following endpoint:

  • https://budgets.amazonaws.com

For information about costs that are associated with the AWS Budgets API, see AWS Cost Management Pricing.

If you’re using the service, you’re probably looking for BudgetsClient and Budgets.


A budget action resource.

The historical records for a budget action.

The description of details of the event.

The trigger threshold of the action.

Represents the output of the CreateBudget operation. The content consists of the detailed metadata and data file information, and the current status of the budget object.

This is the ARN pattern for a budget:


A history of the state of a budget at the end of the budget's specified time period.

The amount of cost or usage that you created the budget for, compared to your actual costs or usage.

A client for the AWSBudgets API.

The spend objects that are associated with this budget. The actualSpend tracks how much you've used, cost, usage, RI units, or Savings Plans units and the forecastedSpend tracks how much you are predicted to spend based on your historical usage profile.

For example, if it is the 20th of the month and you have spent 50 dollars on Amazon EC2, your actualSpend is 50 USD, and your forecastedSpend is 75 USD.

The types of cost that are included in a COST budget, such as tax and subscriptions.


Request of CreateBudget

Response of CreateBudget

Request of CreateNotification

Response of CreateNotification

Request of CreateSubscriber

Response of CreateSubscriber

Specifies all of the type-specific parameters.

Request of DeleteBudget

Response of DeleteBudget

Request of DeleteNotification

Response of DeleteNotification

Request of DeleteSubscriber

Response of DeleteSubscriber

Request of DescribeBudget

Response of DescribeBudget

Request of DescribeBudgets

Response of DescribeBudgets

Request of DescribeNotificationsForBudget

Response of GetNotificationsForBudget

Request of DescribeSubscribersForNotification

Response of DescribeSubscribersForNotification

The AWS Identity and Access Management (IAM) action definition details.

A notification that is associated with a budget. A budget can have up to ten notifications.

Each notification must have at least one subscriber. A notification can have one SNS subscriber and up to 10 email subscribers, for a total of 11 subscribers.

For example, if you have a budget for 200 dollars and you want to be notified when you go over 160 dollars, create a notification with the following parameters:

  • A notificationType of ACTUAL

  • A thresholdType of PERCENTAGE

  • A comparisonOperator of GREATER_THAN

  • A notification threshold of 80

A notification with subscribers. A notification can have one SNS subscriber and up to 10 email subscribers, for a total of 11 subscribers.

The service control policies (SCP) action definition details.

The amount of cost or usage that is measured for a budget.

For example, a Spend for 3 GB of S3 usage would have the following parameters:

  • An Amount of 3

  • A unit of GB

The AWS Systems Manager (SSM) action definition details.

The subscriber to a budget notification. The subscriber consists of a subscription type and either an Amazon SNS topic or an email address.

For example, an email subscriber would have the following parameters:

  • A subscriptionType of EMAIL

  • An address of example@example.com

The period of time that is covered by a budget. The period has a start date and an end date. The start date must come before the end date. There are no restrictions on the end date.

Request of UpdateBudget

Response of UpdateBudget

Request of UpdateNotification

Response of UpdateNotification

Request of UpdateSubscriber

Response of UpdateSubscriber


Errors returned by CreateBudgetAction

Errors returned by CreateBudget

Errors returned by CreateNotification

Errors returned by CreateSubscriber

Errors returned by DeleteBudgetAction

Errors returned by DeleteBudget

Errors returned by DeleteNotification

Errors returned by DeleteSubscriber

Errors returned by DescribeBudgetAction

Errors returned by DescribeBudgetActionHistories

Errors returned by DescribeBudgetActionsForAccount

Errors returned by DescribeBudgetActionsForBudget

Errors returned by DescribeBudget

Errors returned by DescribeBudgetPerformanceHistory

Errors returned by DescribeBudgets

Errors returned by DescribeNotificationsForBudget

Errors returned by DescribeSubscribersForNotification

Errors returned by ExecuteBudgetAction

Errors returned by UpdateBudgetAction

Errors returned by UpdateBudget

Errors returned by UpdateNotification

Errors returned by UpdateSubscriber


Trait representing the capabilities of the AWSBudgets API. AWSBudgets clients implement this trait.