• VALID
  • INVALID
  • FORMAT
  • HUMAN

How to verify IBAN checksums with your AI

Connect the IBAN Bank Validator once. From there, your AI handles the math to confirm account numbers are correct.

Ask AI about this page

Short answer

How do I check if an IBAN is valid using AI?

Your AI runs the Modulus 97 algorithm on the provided IBAN to check the checksum. It confirms if the number follows the correct mathematical structure for its specific country. You'll see the results of these calculations immediately.

The outcomes.

What you get back.

The AI processes the numbers and gives you these specific results.

VALID

Confirmed checksums

The AI confirms the IBAN passes the Modulus 97 check. You get a clear signal that the number is mathematically sound.

INVALID

Error detection

The AI identifies numbers that fail the checksum test. It flags these so you don't attempt transfers to broken accounts.

FORMAT

Structure checks

The AI verifies the country code and length match the expected IBAN standards. It catches typos in the prefix or length.

HUMAN

Manual review

If a number is mathematically valid but still fails your internal checks, you decide how to handle it. The AI only handles the math.

The workflow

What your AI does when the data arrives.

The AI takes the raw text and runs it through the validator tool.

  1. Data extraction

    Your AI pulls IBAN strings from your chat, spreadsheets, or documents.

    validate_iban

  2. Checksum calculation

    The AI applies the Modulus 97 math to the digits to verify the checksum.

    validate_iban

  3. Format verification

    The agent checks the country code and character length against bank standards.

    validate_iban

  4. Result reporting

    The AI tells you exactly which numbers passed or failed the check.

    validate_iban

Try it

Copy these to start.

Paste these into your chat to begin.

Starting points

These are basic ways to start. Swap the bracketed text for your actual data.

IBAN Tools Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_rcTsPWlHMr6z0GgJBOAdtSfQq3Ikm15MNwrTzSzZ/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 — IBAN Tools capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "iban-bank-validator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_rcTsPWlHMr6z0GgJBOAdtSfQq3Ikm15MNwrTzSzZ/mcp"
    }
  }
}
Copy into chat04

  • Validate these IBANs from my spreadsheet: [paste list]

  • Check if this IBAN is mathematically valid: [paste IBAN]

  • Scan this email for any IBANs and tell me which ones have bad checksums: [paste email text]

  • Verify the IBANs in this text block: [paste text]

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

Start here

Connect IBAN Bank Validator once, then ask.

Just click the link to connect. Your credentials stay encrypted, and you can start checking numbers immediately in your preferred client.

Connect IBAN Bank Validator to your AI

FAQ

How this task behaves.

  • 01

    Can the AI fix a typo in an IBAN?

    No. The AI only tells you if the number is valid or invalid. You have to fix the typo yourself.

  • 02

    Does the AI check if the bank account actually exists?

    No. It only verifies that the IBAN is mathematically correct using the Modulus 97 checksum.

  • 03

    Can I upload a CSV for validation?

    Yes. If you paste the contents of a CSV or provide the text, the AI can process the list.

  • 04

    Will the AI delete my data?

    No. The AI only reads the data you provide to perform the validation.

  • 05

    Does it work for all countries?

    Yes, it validates IBANs based on the standard structures used globally.

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

Connect IBAN Tools to Claude, Cursor, ChatGPT & more