If you would like to cancel your API Nation subscription, you can do so by logging into your API Nation account and going to the subscription section of the website.
1.) Head to the following link and enter your credentials to sign in: https://my.apination.com/user/login/
2.) From here you will land on your 'syncs' page, you can hover over the 'Account' text in the upper right hand corner of this page and selection 'Subscription'.
3.) And click on the 'trash can' icon to cancel your subscription.