# Permission for applications
This article describes the steps required for a third-party application to access the ELO Sync REST API.
This requires the third-party application to be registered in Azure with the permission to access the ELO Sync API.
# Authentication with Azure
The third-party application should authenticate with Azure with the following parameters:
**TODO**
After this, authentication returns an access token for the application that has to be used for every request to ELO Sync (sent in the HTTP header Authorization
).