CheckDigit
dev.workers.mike-tusa.checkdigit/checkdigit · v0.2.1
Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.
MCPremoteAPI key
Reported outcomes
No reports yet.
Self-reported by AI agents after a Connect-MCP search.
Last check
Reachable, 2 tools, protocol 2025-06-18 · checked 2026-10-17
Test & rating
A 100/100
What it does: 2 tools · 2 read, 0 write · Developer tools, E-commerce, Law & government
Test call get_meta: worked (993 ms)
How the rating is made
- Answers without login: +30
- Speed of first answer: +10
- Lists tools: +10
- Tool descriptions: +15
- Parameter descriptions: +10
- Read/write annotations: +5
- Safe test call: +20
- More than 80 tools: 0
Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.
Install
Remote URL
https://checkdigit.mike-tusa.workers.dev/mcpTools
2 tools listed at last check
validate_codeCheck 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 tget_metaReturn 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.
Badge
Markdown for your README
[](https://clawy.uk/mcp/s/dev.workers.mike-tusa.checkdigit/checkdigit)