: Since it uses an official API (Stripe), the "Live" or "Dead" status is generally reliable. Security Risk
: The tool checks the 16-digit number against the Luhn formula to ensure it is a mathematically possible card number. API Integration : The "SK Key" refers to the Stripe Secret Key (starting with sk key cc checker
. These tools typically use a provided Secret Key (SK) to attempt a small pre-authorization or "charge" to verify if a card is live and valid. Overview of Features SK Key Integration : Most versions, such as those found on : Since it uses an official API (Stripe),