Create your App.

1. Go to https://developers.facebook.com and select My Apps.
2. Select Create App.
3. Select Other > Business.
4. Give your app a name and select Enter.

You should then see your app. Make note of your App ID (you'll need this in a moment)

Generate your Access Token.

1. In the top nav bar, select Tools > Graph API Explorer.
2. Select Get Page Access Token.
3. In Permissions, add User Data > Email.

You can now use curl to see if you are able to make a GET request.

]$ curl --request GET --url "https://graph.facebook.com/<your app ID>?access_token=<your access token>"
{"link":"https:\/\/www.facebook.com\/games\/?app_id=123456789","name":"default","id":"123456789"}