# OpenAM Administration Guide
13.1. About OAuth 2.0 Support in OpenAM

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### 13.1.2. OpenAM as OAuth 2.0 Client & Resource Server Solution

OpenAM can function as an OAuth 2.0 client for installations where the web resources are protected by OpenAM. To configure OpenAM as an OAuth 2.0 client, you set up an OpenAM OAuth 2.0 authentication module instance, and then integrate the authentication module into your authentication chains as necessary.

When OpenAM functions as an OAuth 2.0 client, OpenAM provides an OpenAM SSO session after successfully authenticating the resource owner and obtaining authorization. This means the client can then access resources protected by policy agents. In this respect the OpenAM OAuth 2.0 client is just like any other authentication module, one that relies on an OAuth 2.0 authorization server to authenticate the resource owner and obtain authorization. The following sequence diagram shows how the client gains access to protected resources in the scenario where OpenAM functions as both authorization server and client for example.

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As the OAuth 2.0 client functionality is implemented as an OpenAM authentication module, you do not need to deploy your own resource server implementation when using OpenAM as an OAuth 2.0 client. Instead, use policy agents or OpenIG to protect resources.

To configure OpenAM as an OAuth 2.0 client, see Hints For the OAuth 2.0 Authentication Module.