Credit Card Luhn Checker
Luhn algorithm check for card numbers (offline, never stored)
luhnv0.1.0ISO/IEC 7812 Luhn algorithm
Workspace
Local or server · same path as API
finance/credit-card-luhn16 characters
Updates as you type
Luhn Checker · offline, never stored
API
forge.finance.credit_card_luhnSame contract as the page. Use an authenticated key in production.
curl -X POST 'https://forge.nebutra.com/v1/tools/finance/credit-card-luhn/invoke' \
-H 'Authorization: Bearer sk-sailor-…' \
-H 'Content-Type: application/json' \
-d '{
"example": true
}'