You pay for the API queries via the prepaid balance on your account. After you
register your free account, you can use the payment method of your choice (we accept all major credit cards, PayPal, Venmo, Apple Pay, and Google Pay) to load your account with a prepaid balance. As you run your API queries we slowly chip away at that balance. When the balance gets low, it will automatically replenish to ensure there are no service interruptions.