Credit Card Validation

live FinanceUtility

Validate credit/debit card numbers offline (keyless): Luhn checksum + card-network detection (Visa/Mastercard/Amex/Discover/JCB/Diners/UnionPay/Maestro) + length checks. Number well-formedness only.

2 tools
0ms auth
free tier 50 calls/day

Tools

validate_card

Validate a credit/debit card number (keyless, offline): Luhn (mod-10) checksum, detected card network (Visa/Mastercard/Amex/Discover/JCB/Diners/UnionPay/Maestro), and whether the length is valid for t

No parameters required.

▶ Try it
check_luhn

Run a raw Luhn (mod-10) check-digit validation on any numeric string (cards, IMEI, national IDs, etc.). Returns whether the check digit is valid and what the correct check digit would be.

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/creditcard/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/creditcard/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"validate_card","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("validate_card", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("validate credit/debit card numbers offline (keyless): luhn checksum + card-network detection (visa/mastercard/amex/discover/jcb/diners/unionpay/maestro) + length checks");