• VALID
  • INVALID
  • ERROR
  • HUMAN

How to validate credit card numbers with your AI

Connect this MCP to your AI client to catch typos and invalid card numbers instantly. Your agent handles the math so you don't have to.

Ask AI about this page

Short answer

How can I check if a credit card number is valid using AI?

Your AI runs the Luhn algorithm against any number you provide to confirm it follows the correct mathematical pattern. This catches accidental typos before they hit your payment gateway. You'll see the results of these checks immediately.

Validation outcomes

Where every check lands.

What happens when your AI processes a number.

VALID

Passed validation

The AI confirms the number passes the Luhn check. You get a clear signal that the number is mathematically sound.

INVALID

Failed validation

The AI identifies that the number is mathematically incorrect. It flags the error so you can stop the transaction immediately.

ERROR

Format issues

The AI detects if the input isn't a number or is missing digits. It tells you exactly why the check couldn't be completed.

HUMAN

Manual review needed

If a number passes the math check but fails your specific business logic, you decide whether to proceed or flag it.

The workflow

What your AI does when a card number arrives.

The AI takes the raw input and runs it through a specific mathematical check.

  1. Receive input

    Your agent pulls the credit card string from your chat, spreadsheet, or database.

    validate_luhn

  2. Run Luhn check

    The AI applies the Luhn algorithm to the digits to verify the checksum.

    validate_luhn

  3. Identify errors

    The AI determines if the number is a typo or a completely invalid sequence.

    validate_luhn

  4. Report results

    Your agent gives you a simple pass or fail response based on the calculation.

    validate_luhn

Try it

Copy these to start.

Use these prompts to trigger the validation immediately.

Starting points

Replace the bracketed text with your actual data sources like a CSV file or a specific list of numbers.

Edge Logic Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_l7QHwgVy4Ldz9JAbFbVbsFgqnJJKueB7qUuFTGB8/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Edge Logic capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "luhn-cc-validator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_l7QHwgVy4Ldz9JAbFbVbsFgqnJJKueB7qUuFTGB8/mcp"
    }
  }
}
Copy into chat04

  • Validate this list of card numbers from my spreadsheet: [paste numbers]

  • Check if the credit card number in this email is valid: [paste number]

  • Run a Luhn check on the numbers found in this text block: [paste text]

  • Verify these card numbers from my customer database: [paste numbers]

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Luhn CC Validator once, then ask.

You only need to link the MCP to your AI client once. Your credentials stay encrypted, and you can start validating numbers right away.

Connect Luhn CC Validator to your AI

FAQ

How this task behaves

  • 01

    Does this validate if the card is active?

    No. This only checks if the number is mathematically correct using the Luhn algorithm. It cannot check if a card is stolen, expired, or has funds.

  • 02

    Can the AI process the actual payment?

    No. This MCP only performs mathematical validation. It does not connect to banks or payment gateways to move money.

  • 03

    Will it work with any credit card?

    Yes, as long as the card number follows the standard Luhn checksum format used by most major issuers.

  • 04

    Does the AI store my card numbers?

    No. The validation happens through the tool, and your data is handled according to your AI client's privacy settings.

  • 05

    Can it check the CVV or expiration date?

    No. The validate_luhn tool only looks at the primary account number (PAN).

  • More questions about Luhn CC Validator? The Connector page answers them. See everything the Luhn CC Validator Connector can do

Connect Edge Logic to Claude, Cursor, ChatGPT & more