# JS-SDK

## Relation-Auth JS-SDK

Help you easily obtain `addressAuthToken` containing user identity information .

{% content-ref url="../js-sdk/relation-auth/quick-start" %}
[quick-start](https://relationlabs.gitbook.io/relation-one-api/js-sdk/relation-auth/quick-start)
{% endcontent-ref %}

## IM JS-SDK

With just a few simple API calls, you can build an Instant Messaging Application .

{% content-ref url="../js-sdk/im-js-sdk/quick-start" %}
[quick-start](https://relationlabs.gitbook.io/relation-one-api/js-sdk/im-js-sdk/quick-start)
{% endcontent-ref %}