Validate, format, and inspect IBAN bank account numbers via @mukundakatta/iban-mcp

@mukundakatta/iban-mcp v0.1.0 — IBAN validator and formatter via MCP stdio.

Install & run

npm install @mukundakatta/iban-mcp
node node_modules/@mukundakatta/iban-mcp/dist/server.js   # stdio

Tool 1: validate

Schema: { iban: string (REQUIRED) } Validates an IBAN: checks country code, length, and mod-97 checksum. Returns valid boolean, country code, and reason on failure.

Verified traces

IN:  { iban: "DE89370400440532013000" }
OUT: { iban: "DE89370400440532013000", valid: true, country: "DE" }

IN:  { iban: "GB29NWBK60161331926819" }
OUT: { iban: "GB29NWBK60161331926819", valid: true, country: "GB" }

IN:  { iban: "FR7630006000011234567890189" }
OUT: { iban: "FR7630006000011234567890189", valid: true, country: "FR" }

IN:  { iban: "XX0000000000" }
OUT: { iban: "XX0000000000", valid: false, country: "XX", reason: "unknown country" }

Tool 2: format

Schema: { iban: string (REQUIRED) } Formats an IBAN as space-separated 4-character groups (the standard print convention).

Verified traces

IN:  { iban: "DE89370400440532013000" }
OUT: { formatted: "DE89 3704 0044 0532 0130 00" }

IN:  { iban: "GB29NWBK60161331926819" }
OUT: { formatted: "GB29 NWBK 6016 1331 9268 19" }

Notes

• Validates country code recognition, IBAN length per country, and ISO 7064 mod-97 checksum
• Returns structured JSON with clear failure reasons
• Format tool produces the standard 4-character-group display convention