How to Pay for Your Anthropic Account

Pay for a Claude Pro subscription and top up your API balance with a Flowbit Online card.

Change your IP address

Do this before opening the website.

To ensure a successful payment, you may need to connect via the United Kingdom or Singapore (the required country is displayed in the Flowbit mini-app)
You can find a suitable service in this selection of IP address changing services.
After activating the IP address , be sure to check that your region has actually changed. To do this, you can use the service: Go to website or another similar site.

Open anthropic.com and log in to your account
(or create a new one if you don't have one).
📌 Your account region is set the first time you log in.

Go to Billing

In your personal account, open:

Claude Pro — for a subscription
API / Billing — to top up your API balance

Select the desired option and click Upgrade / Add credits.

Add a Flowbit card

Please provide:

Card number, expiration date, and CVC — available in your personal account.
Cardholder name — your name in Latin characters.
Country: Select the country listed on your card: the United Kingdom or Singapore (as shown in the Flowbit mini-app)
Billing address — Use a UK address (if required).

The address can be generated using a relevant service.

Confirm payment

Click Pay / Subscribe and wait for confirmation.
Claude Pro is activated immediately.
API credits are added to your balance.

If the payment does not go through

the correct IP address has been selected;
Clear cookies
Check your billing address

Important

If you don't plan to use your subscription, disable auto-charges before the end of the period to avoid being charged again.
📢 If you encounter any issues or your payment doesn’t go through, contact support—our team will help you resolve the problem.

Having trouble with payment?

Change your IP address

Change the connection region
Select the region issued with your card in the app: Singapore or the United Kingdom.
Make sure the region has actually changed.
Use any service to check your IP
Enter a billing address that matches the country of your card.
You can generate the address using the appropriate service.

Changing your IP address

Reliable services for changing your IP address

Visit

If you're having trouble making a payment

Write to support — the team will help you sort it out quickly.