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The AWS Security Token Service (AWS STS) is a web service that enables you to request temporary, limited-privilege credentials for AWS Identity and Access Management (AWS IAM) users or for users that you authenticate (federated users). This guide provides descriptions of the AWS STS API. For more detailed information about using this service, go to Using Temporary Security Credentials.
As an alternative to using the API, you can use one of the AWS SDKs, which consist of libraries and sample code for various programming languages and platforms (Java, Ruby, .NET, iOS, Android, etc.). The SDKs provide a convenient way to create programmatic access to AWS STS. For example, the SDKs take care of cryptographically signing requests, managing errors, and retrying requests automatically. For information about the AWS SDKs, including how to download and install them, see the Tools for Amazon Web Services page.
For information about setting up signatures and authorization through the API, go to Signing AWS API Requests in the AWS General Reference. For general information about the Query API, go to Making Query Requests in Using IAM. For information about using security tokens with other AWS products, go to Using Temporary Security Credentials to Access AWS in Using Temporary Security Credentials.
If you're new to AWS and need additional technical information about a specific AWS product, you can find the product's technical documentation at http://aws.amazon.com/documentation/.
For information about AWS STS endpoints, see Regions and Endpoints in the AWS General Reference.
This document was last updated on November 13, 2013.