Upstash does not require a credit card for Free databases. However, for paid databases, you need to add at least one payment method. To add a payment method, follow these steps:
Click on your profile at the top right.
Select Account from the dropdown menu.
Navigate to the Billing tab.
On the screen, click the Add Your Card button.
Enter your name and credit card information in the following form:
You can enter multiple credit cards and set one of them as the default one. The
payments will be charged from the default credit card.
Upstash does not store users’ credit card information in its servers. We use
Stripe Inc payment processing company to handle payments. You can read more
about payment security in Stripe
here.