![BlogImage.jpg](https://experienceleague.adobe.com/docs/experience-manager-learn/assets/external-application.png?lang=en)
Abstract
In this tutorial well explore how an external application can programmatically authenticate and interact with to AEM as a Cloud Service over HTTP using access tokens.
Pre-requisites
Ensure the following are in place before following along with this tutorial:
1. Access to am AEM as a Cloud Service environment (preferably a Development environment or a Sandbox program)
2. Membership in the AEM as a Cloud Service environment’s Author services AEM Administrator Product Profile
3. Membership in, or access, to your Adobe IMS Org Administrator (they will have to perform a one-time initialization of the Service Credentials)
4. The latest WKND Site deployed to your Cloud Service environment
Video: https://images-tv.adobe.com/mpcv3/5040/23c900e0-7b81-4b1e-a0c9-5c625227846e_1610547841.854x480at800_h264.mp4
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Q&A
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Kautuk Sahni