com.apished/checksum-validator

up checked 2026-11-11T03:37:21.035Z

Unclaimed · Unverified

Publisher-provided title

Checksum Validator

Publisher-provided description

Validates Luhn, IBAN, ISBN, EAN/UPC, SWIFT/BIC, and EU VAT checksums and formats.

Summary by lookupd

Validates barcode, IBAN, ISBN, Luhn, SWIFT/BIC and EU VAT numbers by checksum and format, with no external lookups.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http checksum-validator https://apished.com/mcp/v1/checksum

Codex, remote (streamable-http)

codex mcp add checksum-validator --url https://apished.com/mcp/v1/checksum

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "checksum-validator": {
      "url": "https://apished.com/mcp/v1/checksum"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

ean_validate Validates an 8-digit (EAN-8), 12-digit (UPC-A), 13-digit (EAN-13), or 14-digit (GTIN-14) barcode checksum: alternating weights 1 3 applied right-to-left, check
iban_validate Validates an IBAN's length for its issuing country (per the SWIFT IBAN registry) and its mod-97 checksum. Does not decompose the BBAN into a bank code/account n
isbn_validate Validates a 10- or 13-character ISBN. ISBN-10 uses weights 10..1 over 10 characters (last may be X, worth 10), sum mod 11 must be 0. ISBN-13 uses the same GTIN
luhn_validate Validates a numeric string against the Luhn (mod-10) checksum — payment card numbers, IMEI numbers, and similar identifiers.
swiftbic_validate Structural format validation only for a SWIFT/BIC code: 8 or 11 characters (4 letters bank code + 2 letters country code + 2 alphanumeric location code + option
vateu_validate Format validation only (no VIES lookup) for an EU VAT number: checks the 2-letter member-state prefix (EL for Greece, XI for Northern Ireland) against that coun

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/com.apished/checksum-validator.svg)](https://lookupd.com/servers/com.apished/checksum-validator)