Invoice & Payment ID Validator

Connect Remote server

claude mcp add --transport http invoice-payment-id-validator https://invoice-validator.mohamed-bahaa53000.workers.dev/demo/mcp

{
  "mcpServers": {
    "invoice-payment-id-validator": {
      "url": "https://invoice-validator.mohamed-bahaa53000.workers.dev/demo/mcp"
    }
  }
}

{
  "servers": {
    "invoice-payment-id-validator": {
      "type": "http",
      "url": "https://invoice-validator.mohamed-bahaa53000.workers.dev/demo/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://invoice-validator.mohamed-bahaa53000.workers.dev/demo/mcp

Tools 6 found in our last check

• check_invoice_payee

  One call before paying a supplier: validates the IBAN, BIC, VAT (EU or UK) and EIN on the invoice AND cross-checks them against each other and the supplier's country, then returns verdict pay / review / hold with plain-English reasons. Catches the changed-bank-details fraud patt…

• validate_iban

  Validate an International Bank Account Number: mod-97 checksum, length for its country (100+ countries), SEPA membership. Returns the normalized and formatted IBAN, country and BBAN, or machine-readable error codes. Use before paying an invoice or saving supplier bank details.

• validate_bic

  Validate a BIC/SWIFT code (8 or 11 chars): structure, ISO country, test-BIC flag. Pass the IBAN too and it checks that the BIC country matches the IBAN country (a common fraud/typo signal).

• validate_eu_vat

  Validate an EU VAT ID (27 member states + XI): format and check digit offline. Set live=true to also query the EU VIES registry for registration status, company name and address (slower, may be throttled; failures return vies.checked=false, never a false 'invalid').

• validate_gb_vat

  Validate a UK (GB) VAT registration number: format, branch/government/health-authority types, and the HMRC mod-97 / 9755 checksum.

• validate_ein

  Validate a US Employer Identification Number: 9-digit format and a valid IRS campus prefix. EINs have no check digit, so this catches typos and fake prefixes, not every invalid number.

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