Check Digit Validator MCP server

Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit

Category: Other

● Online, checked 332 min ago · 816 ms

Source: official MCP Registry entry com.gumballtools/check-digit · repository

Direct MCP URL and setup

CLAUDE CODE

claude mcp add --transport http com-gumballtools-check-digit https://check-digit.gumballtools.com/api/mcp

CURSOR / VS CODE (mcp.json)

{ "mcpServers": { "com-gumballtools-check-digit": { "url": "https://check-digit.gumballtools.com/api/mcp" } } }