IBANforge

IBANforge checks the bank behind an IBAN before you pay. It validates IBANs from all 89 IBAN countries and, in each of them, names the bank and its BIC, with the source of that answer. Where it reads the national register (Germany, Austria, Belgium, Slovakia, Czech Republic, Bulgaria, Switzerland and Liechtenstein), it also tells you whether the bank code is allocated at all; elsewhere it names the bank from a partial register or a composite map, and says that such an answer cannot rule a code out. For a SEPA bank it resolves, it gives the SEPA schemes that reach it (Credit Transfer, Instant, Direct Debit), from the EPC scheme registers when they list the bank and from the country otherwise (the answer says which), and says whether the EPC Verification of Payee (VoP) register lists the bank as ready to answer VoP requests. It does not check who holds the account: that name check belongs to the payee's bank, through VoP.

Not a name check (VoP, BAV, CoP), not proof that an account exists or is open, not a sanctions screening of the payee (bank and country only), not a licensed copy of the SWIFT BIC directory. The national check digits inside the BBAN are checked for France and Monaco (RIB key), Belgium, Italy and San Marino (CIN), Spain (DC), Germany (the account-number check digit, by the Bundesbank method of each bank code) and the United Kingdom (modulus check): a wrong key shows in checks.national_check_digits and never turns valid to false. The Polish settlement-number check digit is checked with the bank code. The national keys of the other countries are not checked yet.

For business software and AI agents alike: a REST API, a native MCP server, prepaid packs by card, and x402 micropayments with no signup.

89 IBAN countries · bank codes checked against the national registers of DE, AT, BE, SK, CZ, BG, CH, LI · 121k+ BIC entries (39k+ LEI via GLEIF; about two thirds a public copy of the SWIFT directory frozen in January 2018) · 1,100+ Swiss BC-Nummern (SIX)

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For AI agents — install in one click

Claude Desktop / Cursor / Cline / Continue / Windsurf

Add to your MCP config (~/Library/Application Support/Claude/claude_desktop_config.json for Claude Desktop):

{
  "mcpServers": {
    "ibanforge": {
      "command": "npx",
      "args": ["-y", "ibanforge-mcp"]
    }
  }
}

Privacy by default: submitted IBANs are never stored — validation runs in memory, IPs are kept only as salted hashes, and telemetry deletes itself (12-month cap; erased 30 days after a customer terminates, contractually — DPA clause 4.7).

Optional: set IBANFORGE_API_KEY=ifk_... in env (a key that needs no e-mail: 25 requests a month, raised to 200 a month once claimed). Without it the server uses the public/demo surface; combine with x402 micropayments for unlimited pay-per-call access without signup.

Claude Code (CLI)

claude mcp add ibanforge npx -- -y ibanforge-mcp

Streamable HTTP (no install — for cloud-hosted agents)

POST https://api.ibanforge.com/mcp
Content-Type: application/json
Accept: application/json, text/event-stream
Authorization: Bearer ifk_your_key   # optional

Standard JSON-RPC initialize + tools/list + tools/call flow. Use this when stdio is not an option (CI/CD, serverless, Vercel agents, etc.). Without a key it answers a keyless allowance per source address; with a key (Authorization: Bearer or X-API-Key), the tool calls count against that key exactly as on the REST API.

This is the beginning of the README. Read the rest at the original. Read the full README ↗