You can manage your Auth0 subscription plan from the Auth0 Dashboard.
Log in to the Dashboard.
Click on your tenant name in the top right corner to bring up the associated dropdown box.
Select Settings to open the Tenant Settings page.
Click on the Subscription tab. You have the option to pay on a monthly or yearly basis.
You can upgrade your subscription from a Free plan to a Developer or a Developer Pro plan or from a Developer to a Developer Pro plan. To upgrade to an Enterprise plan contact Auth0 Sales.
On the Subscription tab, scroll to the panels describing the plan options.
Select a new plan and click Checkout to upgrade. If you do not have your billing information stored with Auth0 you'll need to provide it.
Click Subscribe Now to confirm your information and activate your new subscription.
Downgrade to free subscriptions
On the Subscription tab, scroll to the box associated with the Free plan and click Checkout.
To confirm your subscription change, click Subscribe Now.