Mrchecker Ccn2 -

Does it work with Apple Pay / Google Pay virtual PANs? A: Yes, if they follow standard Luhn + BIN rules.

mrchecker ccn2 --check 4111111111111111 # Expected: VALID (Visa) MrChecker CCN2 should be used before sending to payment gateway: mrchecker ccn2

git clone https://github.com/mrchecker/ccn2.git cd ccn2 pip install -r requirements.txt # Python example Or as a Python function: Does it work with Apple Pay / Google Pay virtual PANs

def mrchecker_ccn2(card_number: str) -> dict: # implementation (see section 5) pass CLI mode mrchecker ccn2 --check "4532 1234 5678 9123" Output: A: No — it only checks format & checksum, not fraud status

[RESULT] INVALID (Luhn fail) Brand: Visa Length: 16 mrchecker ccn2 --batch cards.txt With BIN lookup mrchecker ccn2 --bin 453212 --show-issuer Output:

BIN: 453212 Issuer: JPMorgan Chase Country: USA Brand: Visa def luhn_check(card_num: str) -> bool: total = 0 reverse_digits = card_num[::-1] for i, d in enumerate(reverse_digits): n = int(d) if i % 2 == 1: n *= 2 if n > 9: n = n // 10 + n % 10 total += n return total % 10 == 0 def detect_brand(card_num: str) -> str: first6 = card_num[:6] if card_num[0] == '4': return 'Visa' if card_num[:2] in ['51','52','53','54','55'] or (2221 <= int(first6) <= 2720): return 'Mastercard' if card_num[:2] in ['34','37']: return 'Amex' if card_num[:4] == '6011' or card_num[:3] in ['644','645','646','647','648','649'] or card_num[:2] == '65': return 'Discover' return 'Unknown'

Can MrChecker CCN2 detect stolen cards? A: No — it only checks format & checksum, not fraud status.