# Overview

## About Humanode OAuth 2 Service

It is an easy-to-integrate way to add Sybil-resistance to your apps and dapps!

Sybil-resistant applications are not subject to multi-account attacks. You can make sure that there is only one person behind the account in your platform.

Humanode OAuth 2 Service use OAuth 2 + OpenID Connect protocols which are common and widespread. More information about protocols you can get here:

{% content-ref url="oauth-2" %}
[oauth-2](https://gitbook.humanode.io/oauth2-service/oauth-2)
{% endcontent-ref %}

Integration guides can be found here:

{% content-ref url="guides" %}
[guides](https://gitbook.humanode.io/oauth2-service/guides)
{% endcontent-ref %}

Information about OAuth 2 Service environment is here:

{% content-ref url="environments" %}
[environments](https://gitbook.humanode.io/oauth2-service/environments)
{% endcontent-ref %}


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