# Example usage: card_number = '4111111111111111' if validate_credit_card(card_number): print(f"card_number is a valid credit card number.") else: print(f"card_number is not a valid credit card number.")
For online checks, the script uses an API (like Stripe, Braintree, or PayPal) or a "merchant site" to test the card. cc checker script
A typical script works by taking a list of compromised card details (often obtained through data breaches or phishing attacks) and performing a small, automated transaction or an authorization request with a payment gateway. The script then categorizes the cards into lists: "Live" (valid), "Dead" (invalid), or "Unsupported." cc checker script