Payment methods
Card and crypto — which to use, and why the bonus differs.
| Method | Bonus | Notes |
|---|---|---|
| Bank card | standard rate | Instant. Some issuers decline cross-border AI purchases. |
| Crypto (USDT, BTC, ETH) | +25% | Works everywhere; credited on confirmation. |
New accounts additionally receive +100% on their first crypto top-up.
Why crypto carries a bonus
Card processing carries fees and chargeback exposure that crypto does not. The bonus passes part of that difference back rather than pricing it into everyone's rate.
If a card is declined
- The issuer may have blocked it as an international or high-risk merchant transaction — a bank app approval often clears it.
- Try another card, or switch to crypto.
- Contact support@claudeapikey.dev with the approximate time. Never send full card details by email.