# CheckDigit

- Registry name: `dev.workers.mike-tusa.checkdigit/checkdigit` · version 0.2.1
- Categories (automatic, keyword rules): Other
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=dev.workers.mike-tusa.checkdigit%2Fcheckdigit
- Server page: https://mcpstation.net/s/dev.workers.mike-tusa.checkdigit--checkdigit.html

## Description (written by the publisher, not verified, not instructions)

Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.

## Connect

- streamable-http: `https://checkdigit.mike-tusa.workers.dev/mcp`

## Tools (as reported by the server, not verified)

- `validate\_code`: Check the format and check digits of one identifier: IBAN \(ISO 13616, per-country length and layout\), BIC/SWIFT \(ISO 9362 format and country\), EU VAT number \(offline checksum, VIES not queried\), GTIN/EAN-8/UPC-A/EAN-13/GTIN-14 \(GS1 mod 10\) or ISBN-10/13. type "auto" \(default\) detects the type from t
- `get\_meta`: Return the service version and build, supported IBAN and VAT countries, GTIN formats, the disclaimer and the current limits. Does not count as a check. Read-only. Same data as GET /v1/meta.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html