The [AWS SDK for JavaScript V3 API Reference Guide](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/) describes in detail all the API operations for the AWS SDK for JavaScript version 3 (V3). 

# Set credentials in a web browser
<a name="setting-credentials-browser"></a>

There are several ways to supply your credentials to the SDK from browser scripts. Some of these are more secure and others afford greater convenience while developing a script.

 Here are the ways you can supply your credentials, in order of recommendation:

1. Using Amazon Cognito Identity to authenticate users and supply credentials

1. Using web federated identity

**Warning**  
We do not recommend hard coding your AWS credentials in your scripts. Hard coding credentials poses a risk of exposing your access key ID and secret access key.

**Topics**
+ [Use Amazon Cognito Identity to authenticate users](loading-browser-credentials-cognito.md)