Aws session token. The credentials expire 15 minutes after they are generated.

Aws session token Security Token Service is time bound service. Jun 6, 2017 · In other words, when we want to access AWS, we do something that authenticates to our corporate system and then issues an AWS session token. md at master · 99designs/aws-vault Container for the parameters to the GetSessionToken operation. get_value('Credentials', ' Mar 10, 2017 · I can't find any documentation which explains if and how to modify the expiry time of access and identity tokens for AWS Cognito User Pools. When you create A Regional endpoint is the URL of the entry point within a particular region for an AWS web service. aws/credentials The default profile will already be present. This is working well. aws sts get-session-token --profile Jun 11, 2023 · AWS STS is Security Token Service that provides functionality to request temporary credentials like — Access & Secret Keys. Prior to our research these tokens were a complete black box. aws_session_token is an optional field that can be provided in addition to the other two fields. # Import os import os # Set environment SessionAWSCredentials - Similar to BasicAWSCredentials, except utilises an AWS Session using a temporary session token from AWS STS. 32. Nov 13, 2024 · This error indicates that your SSO session token has expired, and AWS CLI couldn't refresh it automatically. From this page https://docs. aws configure --profile my-profile-1 aws configure set aws_session_token <session Feb 7, 2024 · Error when retrieving token from sso: Token has expired and refresh failed How can i refresh my token when aws sso session login --sso-session prod does not work it 注記 AWS Security Token Service (AWS STS) を使用して、AWS リソースへのアクセスをコントロールできる一時的セキュリティ認証情報を持つ、信頼されたユーザーを作成および提供することができます。 May 12, 2023 · I am trying to use curl to make a SIGv4 signed request to API Gateway, using temporary credentials from an assumed role. These should be unset first or AWS will try to use them implicitly and fail because they're invalid. What I generally do is I retrieve the credentials every time I need it Feb 4, 2022 · You are using IAM user credentials and so you do not have a session token and your code should use AwsBasicCredentials. I'm able to get a session token using the access key and secret key of a user I set up with invoke permissions for Oct 23, 2023 · 2. Nov 8, 2025 · In this guide, we will walk you through four methods of specifying credentials in Boto3, starting from the basic approaches of using environment variables and… In 2014 Amazon switched from AWS_SECURITY_TOKEN to AWS_SESSION_TOKEN and you should favor the latter also. The AWS STS API operations create a new session with temporary security credentials that include an access key pair and a session token. Mar 27, 2024 · Create Boto3 Session In Boto3, a session is an object that stores configuration state, including AWS access key ID, secret access key, and session token. aws_session_token model_id model_kwargs provider endpoint_url normalize config validate_environment embed_documents embed_query aembed_query aembed_documents NeptuneAnalyticsGraph get_schema __init__ query This article explains AWS Access Keys from AWS Config or Crendential file. Sep 3, 2020 · I manually read ~/. Is there any way, from just that information - to figure out when the token is going to expire? Dec 28, 2022 · Adding temporary AWS Tokens in Terraform CircleCI provides a Terraform configuration to allow you to easily orchestrate the CircleCI Server cluster in your AWS environment. For more information about using this service, see Temporary Security Credentials . May 22, 2023 · The process explained through the Postman collections does not use a session token. They'll be in your environment variables or the default config/credentials files. This is the only value that needs to be kept secret, so having such a large random is good to see. By including the aws_session_token parameter, boto3 will use the temporary credentials for the S3 connection. Client. But within For increased security, AWS recommends that you configure the SDK for Java to use temporary credentials instead of long-lived credentials. Follow the steps to install and configure AWS CLI, generate and customize session tokens, and revoke them early. com/AmazonS3/latest/userguide/RESTAuthentication. 3 to run the sts get-session-token command. On the Automatic provisioning page, under Access tokens, choose Generate token. aws - there's a file with access_key, secret access key, session token. " Mar 27, 2024 · Create Boto3 Session In Boto3, a session is an object that stores configuration state, including AWS access key ID, secret access key, and session token. An AWS conversion compresses the passed inline session policy, managed policy ARNs, and session tags into a packed binary format that has a separate limit. Mar 29, 2016 · I am struggling to find out how I can get my aws_access_key_id and aws_secret_access_key dynamically from my code. On the Settings page, choose the Identity source tab, and then choose Actions > Manage provisioning. A common way to obtain AWS credentials is to assume an IAM role and be given a set of temporary session keys that are only good for a certain period of time. AWS uses the session token to validate the temporary security credentials. Credentials The temporary security credentials, which include an access key ID, a secret access key, and a security (or session) token. The credentials consist of an Access Key ID, a Secret Access Key, and a Security Token. Sep 30, 2024 · Discover effective session management techniques in AWS Lambda using external storage, stateless authentication, and API Gateway integration. This is useful for temporary access through role assumptions. You can use the AWS Security Token Service (AWS STS) to create and provide trusted users with temporary security credentials that can control access to your AWS resources. The token (and the access and secret keys) generated using this API is valid for a specific duration (minimum 900 seconds). aws_access_key_id = AKID Jun 20, 2018 · AWS Security ConsultingThe only non-letter and non-number values are “+” and “/”, so these seem to be base64 encoded. Nov 29, 2022 · To get your session token, open cmd in your computer and enter aws sts get-session-token –duration-seconds 129600. Nov 13, 2023 · If you manage access to AWS resources, then you should absolutely start using session tokens. We go over what Session Authentication is, why we use… If the login is successful, Amazon Cognito creates a session and returns an ID token, an access token, and a refresh token for the authenticated user. Patch Part 1 Please suppo In this example, we configure the AWS Command Line Interface to authenticate our user with the AWS IAM Identity Center token provider configuration. Jun 5, 2021 · In this short blog post, we describe how to retrieve AWS security credentials (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN) when authenticated in the AWS Console. NuGet: Aws4RequestSigner In case you do not want to use a 3rd party library, you can define your own implementation with this reference documentation. In CI, these auth credentials are fetched using aws sts assume-role-with-web-identity. In this scenario, in the config file, I would put only the region and output fields. Sep 19, 2024 · Check the AWS credentials that you are using when running aws sts get-session-token. The maximum duration of the validity of the token is 12 hours (provided it is configured in the role). aws. Access keys consist of two parts: an access key ID (for example, AKIAIOSFODNN7EXAMPLE) and a secret access key (for . Non-credential configuration includes items such as which region to use or which addressing style to use for Amazon S3. session. Jul 10, 2018 · The session token you are referring to is generated dynamically using the assume_role() method. AWS provides AWS Security Token Service (AWS STS) as a web service that enables you to request temporary, limited-privilege credentials for users. Jan 4, 2016 · get-session-token was failing for me because I still had the environment variables AWS_SESSION_TOKEN and AWS_SECURITY_TOKEN set. Run aws sts get-caller-identity to see them. So if users don't specify a $ unset AWS_SESSION_TOKEN Windows: C:\>set AWS_ACCESS_KEY_ID= C:\>set AWS_SECRET_ACCESS_KEY= C:\>set AWS_SESSION_TOKEN= You can now use the assume-role API call again to get new, valid credentials and set the environment variables again. Problem The wrapper usually reuses existing credentials, and only asks to re-authenticate explicitly when they are about to expire. They have a limited lifetime; after that, they expire and can’t be The following code example shows how to get a session token that requires an MFA token. A common way to obtain AWS credentials is to assume an IAM … To authenticate access to Amazon Bedrock from the Control Room, you need to obtain Amazon Web Services (AWS) access key ID and secret access key. A vault for securely storing and accessing AWS credentials in development environments - aws-vault/USAGE. In boto2 I could do the following: boto. What is the significance of "Session Jul 5, 2025 · This is just my short cheat sheet for commands to run when dealing with AWS Session Token. The boto3. Today, we are making it more of glass box, by sharing code Nov 13, 2018 · i have aws access key and secret key with me. Dec 27, 2023 · Learn how to use AWS session tokens to provide temporary and secure access to AWS services. Temporary security credentials work almost identically to long-term access key credentials, with the following differences: Amazon CLI To get a set of short term credentials for an IAM identity The following get-session-token command retrieves a set of short-term credentials for the IAM identity making the call. For more information on how to configure non-credential configurations, see the Configuration guide. I am using AWS temporary credentials obtained in exchange from the Cognito Id token. A common way to obtain AWS credentials is to assume an IAM … Description ¶ Security Token Service (STS) enables you to request temporary, limited-privilege credentials for users. aws/credentials on Linux, macOS, or Unix, or at C:\Users\USERNAME . Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific Amazon Web Services API operations like Amazon EC2 StopInstances. i wanted session token to be updated in aws credential file (~/. MFA-enabled IAM users must call GetSessionToken and submit an MFA code that is associated with their MFA device. aws/credentials file and pass aws_access_key_id, aws_secret_access_key & aws_session_token while instantiating boto3 client instantiate boto3 client on every call A simple Node. Several approaches are available to you to work with temporary credentials. Do this only if “yes”, you need to configure a session token Edit the file ~/. aws/configure and I was able to make connection sucessfully. The AWS SDK automatically uses these AWS credentials to sign API requests to AWS, so that your workloads can access your AWS resources and data securely and conveniently. Sep 30, 2013 · How to do that is beyond the scope of this blog, but see IAM Users and Groups for more information on how to set up and configure IAM user accounts. The base64 decoded values appear completely random, providing 30 bytes of random, or 2 240 possible values. Yes, it accomplishes the same end, but it's two steps instead of one. Apr 22, 2023 · From get-session-token — AWS CLI Command Reference: "The GetSessionToken operation must be called by using the long-term AWS security credentials of the AWS account root user or an IAM user. get_session_token(**kwargs) # Returns a set of temporary credentials for an Amazon Web Services account or IAM user. For more information, see Temporary Security Credentials in the IAM User Guide. aws_session_token - The session token part of your credentials (session tokens only) metadata_service_timeout - The number of seconds to wait until the metadata service request times out. :type aws_account_id: string :param aws_account_id: AWS account ID """ def __init__( self, aws_access_key_id=None, aws_secret_access_key=None, aws_session_token=None, region_name=None, botocore_session=None, profile_name=None, aws_account_id=None, ): if botocore_session is not None: self. aws folder. Dec 12, 2024 · SSO access tokens can buy adversaries more time as they exfiltrate credentials and other sensitive information from a victim’s AWS CLI Jan 28, 2020 · I have cognito user pool and identity pool and a application where i have integrated all these things and doing signup and signin and getting temporary credentials like Access Key, Secret Key and Session token. aws/credentials and . The access key pair consists of an access key ID and a secret key. All other values will be written to the config file (default location is ~/. Returns a set of temporary credentials for an Amazon Web Services account or IAM user. In this comprehensive guide, you‘ll learn what session tokens are, why they enhance security, and how to easily generate and use tokens for improved access […] AWS access keys for an IAM user can be used as your AWS credentials. I tend to forget how to configure the AWS Session Token if the creds that I get is a temporary AWS access token. Session tokens are associated with short-term credentials from an assumed IAM role, in which case your code would use AwsSessionCredentials. Aug 11, 2020 · In fact, the wrapper that calls this script obtains temporary credentials and passes them in environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN). You can use access keys to sign programmatic requests to the AWS CLI or AWS API (directly or using the AWS SDK). AWS recommends using Regional AWS Security Token Service (AWS STS) endpoints instead of the global endpoint to reduce latency, build in redundancy, and increase session token validity. You can use refresh tokens in the following ways. It is recommended to always use the aws_session_token so that the credentials are temporary and no longer valid after they expire. aws/credentials), how will i get it? I want them to be generated in command line. Trouble is when we use them - they just expire at unpredictable times. Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific Amazon Web Services API Jul 30, 2023 · Security Token Service (Temporary Access Service) STS is an AWS service, which provides temporary credentials for accessing the AWS resources to the user. For Regional endpoint API operations (bucket-level operations), you use IAM authorization, which doesn’t involve managing a session. Credentials include items such as aws_access_key_id, aws_secret_access_key, and aws_session_token. Aug 7, 2017 · I am going through this AWS doc about temporary credentials, and I have come across this, about the duration of them: The GetSessionToken action must be called by using the long-term AWS security credentials of the AWS account or an IAM user. The aws sts assume-role command only returns SessionToken so, I am only supporting that in code I write. Jun 22, 2024 · The Feature The legacy boto3 client support is deprecated because you cannot use async. aws\credentials on Windows. This service can only check if your credentials are valid. Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific AWS API operations like Amazon EC2 StopInstances. aws configure aws sts get-caller-identity if you are using profile other than default, use --profile flag in the above command. By default, our Terrafor Jan 5, 2025 · This is a simple way to refresh your aws tokens both manually and automatically with high level of security - anvix9/AWS-Token-Refresh-Automation-Guide-in-terminal- AWS STS Session Token STSSessionToken uses the GetSessionToken API to retrieve a temporary session token. Session class is used to create a session, and it provides a way to customize and manage the configuration settings for AWS service clients. Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific Amazon Web Services API operations like Amazon EC2 An AWS Account or an IAM user can request temporary security credentials and use them to access Amazon S3. If defined, this environment variable overrides the value for the profile setting role_arn. config. To generate a new access token In the IAM Identity Center console, choose Settings in the left navigation pane. e in . js command line wizard to generate AWS session tokens for MFA-enabled users. The temporary credentials contains Access Key,Secret Key and Session Token. Get a session token that requires an MFA token with AWS STS using an AWS SDK Session token with MFA token obtained, IAM role created for listing S3 buckets, IAM user with MFA requirement created, MFA device registered, temporary credentials with MFA token obtained, S3 buckets listed with temporary credentials, demo resources destroyed. However the new httpx support does not allow you to pass in your aws_session_token. If the user wants to access AWS resources after token expiry Oct 17, 2018 · Auto-refresh AWS Tokens Using IAM Role and boto3 Session management in AWS is complicated, especially when authenticating with IAM roles. Feb 4, 2022 · You are using IAM user credentials and so you do not have a session token and your code should use AwsBasicCredentials. This guide provides descriptions of the STS API. It works on least privilege policies. The approach you use, and therefore the configuration that you provide to the The following get-session-token example retrieves a set of short-term credentials for the IAM identity making the call. Apr 28, 2015 · Environment variables: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_SESSION_TOKEN The AWS credentials file – located at ~/. RefreshingSessionAWSCredentials - Similar to SessionAWSCredentials, but refreshes when the STS token expires. Many projects still either set or check both, but It's been 5 years. AWS STS Token Decoder AWS STS Token Decoder is a Python application to decode and encode AWS Session Tokens. This library should assist you in consuming the AWS services through HTTP APIs. h Use the AWS CLI 2. Step-by-step manual solution: Request a session token with MFA aws sts get-session-token --serial-number arn-of-the-mfa-device --token-code code-from-token arn-of-the-mfa-device: visible from your user IAM Option: Use CLI to retrieve: aws iam list-mfa-devices --user-name ryan Option: View in IAM console: IAM --> Users --> <YOU> --> Security Credentials code-from-token: 6 digit code from your Apr 2, 2019 · I'm trying to get a session token in order to set environment variables in order to use a tool which uploads to S3 but doesn't directly support AWS profiles. Calls the AWS Security Token Service (STS) GetSessionToken API operation. amazon. 3 to run the amplifyuibuilder refresh-token command. _session Jun 6, 2017 · In other words, when we want to access AWS, we do something that authenticates to our corporate system and then issues an AWS session token. Mar 8, 2022 · Note: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN could also be added to the credentials file stored in the . May 16, 2023 · How to use session token with AWS SigV4 curl In addition to using IAM user credentials, you can optionally specify a session token using the header of x-amz-security-token. Amazon Cognito issues refresh tokens in response to successful authentication with the managed login authorization-code flow and with API operations or SDK methods. aws/credentials). Session tokens Session tokens are much longer strings and can Aug 11, 2020 · In fact, the wrapper that calls this script obtains temporary credentials and passes them in environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN). aws/config files contain credential details for your IAM entities. Unfortunately it is not possible to validate if credentials Learn how to use an AWS SessionToken for reading data from S3 in PySpark, with step-by-step guidance and practical examples. Important: The . The following get-session-token example retrieves a set of short-term credentials for the IAM identity making the call. What I generally do is I retrieve the credentials every time I need it A Regional endpoint is the URL of the entry point within a particular region for an AWS web service. Important The Amazon Web Services Connection can be tested in the UI/API or by calling test_connection(), it is important to correctly interpret the result of this test. When you make a call using temporary security credentials, the call must include a session token, which is returned along with those temporary credentials. Using long-term Jul 23, 2025 · Setting up the AWS CLI and SDK with session tokens provides an additional layer of security for work performed with your AWS resources, using temporary security credentials provided by AWS Security Token Service reduces the risks encountered during long-term access-key-based interactions, this includes temporary access, cross-account Code-library › ug Use GetSessionToken with an AWS SDK or CLI Get temporary security credentials, request session tokens with MFA for accessing AWS resources like Amazon S3 buckets using AWS SDKs and CLI. The documentation specifies that by default expires 1h The properties aws_access_key_id, aws_secret_access_key and aws_session_token are supported. sh) the environment variables are set, and I can start my service consuming AWS credentials. To use session tokens, first get the token with Get-STSSessionToken and then pass it with the temporary credentials on subsequent commands: I want to use the AWS Command Line Interface (AWS CLI) to get credentials from AssumeRoleWithSAML, AssumeRole, and AssumeRoleWithWebIdentity. Aug 20, 2021 · echo "export AWS_SESSION_TOKEN=${AWS_SESSION_TOKEN}" After evaluating the output of this script with eval $(. Jul 2, 2014 · (The aws_session_token value is needed only if you’re including temporary security credentials in the file. Returns a set of temporary credentials for an AWS account or IAM user. The SSO token provider configuration lets the AWS CLI automatically retrieve refreshed authentication tokens to generate short-term credentials that we can use with the AWS Cloud Development Kit (AWS CDK) Command Line Interface (AWS CDK CLI). After a few seconds, you will be able to get your session token. I have this working using awscurl, which provides an option to pass the -- Oct 4, 2022 · 2 we are in a world where we can run an opaque tool that gives us aws session tokens - ie in ~/. Here is an example of using the aws cli: Oct 17, 2023 · Replace YOUR_SESSION_TOKEN with the actual session token obtained from AWS STS. You can include a session token, which is a temporary token used when working with Dec 12, 2024 · SSO access tokens can buy adversaries more time as they exfiltrate credentials and other sensitive information from a victim’s AWS CLI Jan 28, 2020 · I have cognito user pool and identity pool and a application where i have integrated all these things and doing signup and signin and getting temporary credentials like Access Key, Secret Key and Session token. It signs the request with the Access and Secret keys when consuming the endpoints. Again, this will set the AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_SESSION_TOKEN environment variables for you. Nov 17, 2018 · AWS_SESSION_TOKEN is a special field that represents the temporary validity of the temporary security credentials returned by AWS STS API. Setting a value for the aws_access_key_id, aws_secret_access_key, or the aws_session_token will result in the value being written to the shared credentials file (~/. After the expiry of the secure token, the user will not be able to access the AWS resources. If not given, then the default profile is used. 全体の流れ 以下の流れで、get-session-token コマンドを利用して一時的な認証情報を発行することでアクセスを可能にします。 AWS CLIのダウンロード、インストール 認証ファイル (credentials)の設定 - アクセスキー及びシークレットアクセスキーの設定 They will be ignored if both are not present. Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific Amazon Web Services API Oct 17, 2018 · Auto-refresh AWS Tokens Using IAM Role and boto3 Session management in AWS is complicated, especially when authenticating with IAM roles. You use session tokens with only Zonal (object-level) operations (except for CopyObject and HeadBucket) to distribute the latency that’s associated with authorization over a number of requests in a session. I want to use a multi-factor authentication (MFA) token with the AWS Command Line Interface (AWS CLI) to authenticate access to my AWS resources. The credentials expire 15 minutes after they are generated. Use the AWS CLI 2. The tokens expire after an hour so every so often an AWS command will fail because of an expired token and then I have to grab a new token and then repeat the command. ) As noted, you can keep multiple sets of credentials in the same file, identifying each set using a profile name, like the following example. Most of the time I would Google it or ChatGPT it. Feb 10, 2021 · In this tutorial, we create Session Authentication using AWS Lambda and DynamoDB. aws/config file. Temporary credentials expire after a specified interval. The resulting credentials can be used for requests where multi-factor authentication (MFA) is required by policy. Jul 23, 2025 · The purpose of the session token is to have more security in the AWS system so that only the authorized party can access the resources, which is why it is important to know how to get the AWS session token. Let's explore why this happens and how you can resolve it. I'm able to get a session token using the access key and secret key of a user I set up with invoke permissions for Feb 29, 2016 · unset AWS_SESSION_TOKEN AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY Now you will have only one set of access keys i. And, of course, you can assume an IAM Role and use MFA at the same time: Oct 18, 2018 · The Curse of The Hour Session management in AWS is complicated, especially when authenticating with IAM roles. The credentials consist of an access key ID, a secret access key, and a security token. STS / Client / get_session_token get_session_token # STS. The refresh token returns new ID and access tokens, and optionally a new refresh token. However, Amazon recommends using the environment variables. Dec 1, 2022 · In this case, the Named Profile - associated with the IAM User - should contain the aws_session_token secret too. Session(aws_access_key_id=None, aws_secret_access_key=None, aws_session_token=None, region_name=None, botocore_session=None, profile_name=None, aws_account_id=None) [source] ¶ A session stores configuration state and allows you to create service clients and resources. Jul 25, 2024 · TL;DR: A world first reverse engineering analysis of AWS Session Tokens. In the Generate new access token dialog box, copy the new access token and save it in a safe place Session reference ¶ class boto3. Temporary credentials consist of access keys (access key id and secret access key) and a session token. Background To quote the AWS documentation: You must provide your AWS access keys to make programmatic calls to AWS. During this test components of Amazon Provider invoke AWS Security Token Service API GetCallerIdentity. When you create Jul 10, 2018 · The session token you are referring to is generated dynamically using the assume_role() method. You might be interested in scripts maintained by third parties to facilitate managing credentials Access keys are long-term credentials for an IAM user or the AWS account root user. /parse-aws-cache. This command will provide an AccessKeyId, SecretAccessKey, and SessionToken. I think we can let it go. Learn why AWS_SESSION_TOKEN is not combined with AWS_ACCESS_KEY_ID, and how it differs from AWS_SECRET_ACCESS_KEY. Your request can fail for this limit even if your plaintext meets the other requirements. Output Keys and Values Apr 21, 2023 · AWS_SECURITY_TOKEN is the older (now deprecated) form of AWS_SESSION_TOKEN and is only supported for backward compatibility purposes. This is the reason why I am putting this here on Medium. Or you can exchange them for temporary AWS credentials to access other AWS services. This guide describes the AWS STS API. Dec 3, 2024 · Explore AWS Security Token Service (STS), its core components, real-world use cases, security benefits, and best practices for managing temporary credentials. Jun 20, 2025 · Understanding the internal structure of AWS session tokens is essential for developers, security professionals, and cloud architects to ensure robust authentication and access control. Dec 3, 2021 · I'm trying to develop an OAuth solution for an AWS API using C# lambda functions. Aug 19, 2016 · Using aws configure set is NOT the same as support of aws_session_token from within the aws configure prompts. The maximum session duration is a setting on the IAM role itself, and it is one hour by default. The aws configure sso-session command updates the sso-session sections in the ~/. We are using AWS Cognito Federated Identities to obtain a Session Token from the AWS Security Token Service, then leverage for securing our APIs via API Gateway. Run the aws configure sso-session command and provide your IAM Identity Center start URL or issuer URL and the AWS Region that hosts the IAM Identity Center directory. Used with the AWS_WEB_IDENTITY_TOKEN_FILE and AWS_ROLE_SESSION_NAME environment variables. How to load Access Key Id, Secret Access Key and Session Token from AWS Config or Crendential file. For more information, see Programmatic access with AWS security credentials. So postman needs to generate an AWS Sigv4-signed request to the URL so it needs access key ID / secret / session token. My understanding of session token is, it is a temporary credential that you can get it using a access keys. You can use the tokens to grant your users access to downstream resources and APIs like Amazon API Gateway. Session tokens provide a simple yet powerful way to generate temporary credentials with controlled permissions. Parameters: aws_access_key_id (string) – AWS access key ID aws_secret_access_key Create session token for authenticate with short-term credentials 0 When following instructions to setup the AWS CLI and decided to use authenticate with short-term credentials, then I know how to create the access-key and secret-key for a user but I don't know how to create the aws_session_token? To set up temporary console access for an AWS user, you have a few options: Use AWS Security Token Service (STS): You can use the AWS CLI command 'aws sts get-session-token' to generate temporary credentials. aws/config). Under it add an entry for aws_session_token [default] aws_access_key_id = <Your access key> aws_secret_access_key = <Your secret key> aws_session_token = <your session token> Clear environment variables If you used option 2 or option 3 then you have put AWS CLI To get a set of short term credentials for an IAM identity The following get-session-token command retrieves a set of short-term credentials for the IAM identity making the call. kjo qcpar xtbw oxvdl prunp mvdw uhwimrs idbz zxqcj vhjzp iqffzv wlcdy amrrrt pnqd krhwy