Settings allow you to pass configurable variables to your function, which is the best way to pass sensitive information such as security tokens. For example, you might use `settings` as placeholders to use information such as an API endpoint and API key. This way, you can use the same code with different settings for different purposes. When you deploy a function in your workspace, you are prompted to fill out these settings to configure the function. First, add a setting in **Settings** tab in the code editor: {:width="500"} Click **Add Setting** to add your new setting.  You can configure the details about this setting, which change how it's displayed to anyone using your function: - **Label** - Name of the setting, which users see when configuring the function. - **Name** - Auto-generated name of the setting to use in function's source code. - **Type** - Type of the setting's value. - **Description** - Optional description, which appears below the setting name. - **Required** - Enable this to ensure that the setting cannot be saved without a value. - **Encrypted** - Enable to encrypt the value of this setting. Use this setting for sensitive data, like API keys. As you change the values, a preview to the right updates to show how your setting will look and work. Click **Add Setting** to save the new setting. Once you save a setting, it appears in the **Settings** tab for the function. You can edit or delete settings from this tab. {:width="500"}