Generate Instagram Access Token to display Instagram photos.
Before you can get your Instagram Access Token, you need to "Login with Instagram", this action will take you to Instagram and you may "Authorize" this tool. After that, you will redirect back to this page and you will received your Instagram Access Token.
If you want to display your Instagram photos on your own website from your Instagram account, you need an Access Token. This will allow your website to communicate with Instagram server to get feed from your account.