# Settings for Licensing

## **Overview**

This page is the settings page in the ONE store Developer Center, providing information on ALC (Application License Checker) and OAuth authentication.

<figure><img src="https://2757207078-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG1QmZshNU0saLqpjlDho%2Fuploads%2FE7y6TE31IJ0dvQrDAQn7%2Fimage.png?alt=media&#x26;token=c033e77f-eb91-497d-ba1f-cca982240346" alt=""><figcaption></figcaption></figure>

### **ALC (Application License Checker)**

ALC is a library that allows access to products installed through ONE store to be restricted to specific users. By utilizing this library, you can ensure that only properly installed users can use the app.

#### **License Key**

* A license key required for applying ALC is provided.
* This key is used to verify whether an app is legitimately installed.
* A copy button is available for easy copying.

#### **ALC Library**

* Developers can download the ALC library using the provided download button.
* A dedicated Unity library download option is also available for use in the Unity environment.

#### **ALC Guide**

* A guide document explaining how to apply and configure ALC is accessible.

### **OAuth Authentication Information**

To perform server-to-server communication using ONE store API, OAuth authentication is required. This section provides the **Client ID** and **Client Secret**.

#### **Client ID**

* A unique client ID for using the ONE store API.

#### **Client Secret**

* A security key used for API authentication.
* Typically used to obtain an access token when making API calls.
* Since this is sensitive information, it must be managed securely.

#### **Copy Button**

* A copy button is provided for easy copying of the Client ID and Client Secret.


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