const clientSecret = await response.json();
Use the official "Test Mode" toggle in your Stripe dashboard. cc checker with sk key
Using a Stripe SK for bulk checking violates Stripe’s Terms of Service and will result in the immediate suspension of the associated merchant account. The Ultimate Guide to “CC Checker with SK
The card number and expiry are valid, but the CVV may be incorrect. Dead: The card is declined, expired, or blocked. Common Tooling & Features or blocked. Common Tooling & Features