Pay for Grok with a crypto card
xAI sells Grok through SuperGrok, X Premium and prepaid API credits. All three take a card, so a USDT funded Mastercard does the job.
Grok has three doors. SuperGrok on grok.com is the direct subscription. X Premium and Premium+ on x.com include Grok with lower limits. The xAI API at console.x.ai sells prepaid credits for developers. None of them accepts crypto at the checkout, and X in particular is picky about cards from some countries.
A prepaid Mastercard in US dollars works at all three. Buy the card, send USDT, add it where you want to pay.
What Grok costs
SuperGrok is $30 a month and SuperGrok Heavy is $300 a month at the time of writing. X Premium is around $8 a month and Premium+ around $40, with prices that differ by country and platform. API credits at console.x.ai start from small amounts and are billed per token.
SuperGrok and the API are in US dollars. X Premium may be billed in your local currency, in which case the card converts at the Mastercard rate plus 2.5%.
At the SuperGrok checkout
On grok.com open the account menu, choose SuperGrok and enter the card. On x.com the subscription is under Premium in the side menu; pay on the web rather than through the mobile app, because the app routes payment through Apple or Google and their fee is added to the price. For the API, add the card under Billing in the xAI console and buy credits.
X may ask for 3D Secure; the code arrives in your CryptoCardex account. Keep a dollar or two above the price on the card for the first charge.
If the payment is declined
If X refuses the card, check that you are paying on the website and not in the app, and that the balance covers the price plus the hold. If grok.com declines, retry once after a minute; two or three rapid attempts can trigger a temporary block at the processor. Renewals that fail on an empty card are retried for a few days after a top up.
What the card itself costs
The card costs $49.99 once and nothing per month. A top up is 3% plus the network fee. A purchase in a currency other than US dollars costs 2.5% of the amount, every approved purchase over $1 carries a $0.10 service fee, and the issuing bank's fee on a purchase is passed on at cost. All of it is in one table on the pricing page; if a charge is not there, we do not take it.
How to get the card and pay
- Open the card. Sign up with an email address and pay $49.99 once for the virtual Mastercard. The card number, expiry date and CVV appear in your account about two minutes later. No passport and no selfie.
- Top it up with crypto. Send USDT or USDC on TRON, BNB Chain, Polygon or Ethereum to the deposit address shown in the account. The top up costs 3% plus the network fee, and the balance is held in US dollars.
- Pay at the checkout. Enter the card like any other Mastercard: number, expiry, CVV, the name from your account and the billing address it asks for. The merchant sees an ordinary card payment, not crypto.
Questions people ask
Is SuperGrok cheaper than X Premium for Grok?
They are different products. SuperGrok is the full Grok with the highest limits. X Premium is a social network subscription that includes Grok with lower limits. If Grok is the goal, SuperGrok is the straight route.
Can I buy xAI API credits with the card?
Yes. The console takes a card for prepaid credits, and the card is accepted like any Mastercard.
Why pay on the web and not in the app?
In the iOS and Android apps the payment goes through Apple or Google, which adds their commission to the price and uses their own payment methods. The website charges the card directly at the listed price.
The card is opened with an email address and a one time payment. Open a card, or see every fee in one table first.