Luhn

npm mcp

MCP server: Luhn (mod-10) checksum tools. Used by credit cards, IMEIs, Canadian SIN, US NPI, and many other ID schemes. No deps.

Tools

• verify — { input: "4532015112830366" } → { valid: true }
• checksum — compute the check digit for an input that lacks one
• complete — append the check digit

Spaces and dashes in input are ignored.

Configure

{ "mcpServers": { "luhn": { "command": "npx", "args": ["-y", "@mukundakatta/luhn-mcp"] } } }

License

MIT.