How to show custom fields outside of meta_box key

Hi,

It is not possible to show the custom field key and value outside key meta_box. If you are familiar with coding, you can create your own rest route to use.
Refer to this topic https://stackoverflow.com/questions/43986513/how-do-you-add-custom-fields-defined-in-posts-to-the-rest-api-responses-in-wordp