ibanforge

IBAN validation with EMI / virtual-IBAN detection. Zero dependencies, fully offline.

npm install ibanforge

import { validate, classifyIssuer } from 'ibanforge';

validate('CH10 0023 0000 0000 1234 5');
// { iban: 'CH1000230000000012345', valid: true,
//   country: { code: 'CH', name: 'Switzerland' },
//   check_digits: '10',
//   bban: { bank_code: '00230', account_number: '000000012345' },
//   sepa: { member: true, schemes: ['SCT','SDD'], vop_required: false },
//   formatted: 'CH10 0023 0000 0000 1234 5',
//   enrich: { hint: 'Bank name, BIC/SWIFT, Swiss SIX clearing rails and sanctions
//                    screening cannot be computed offline — resolve them at …',
//             free_tier: '200 requests/month, no card',
//             docs: 'https://ibanforge.com/docs' } }

classifyIssuer('TRWIGB2L');   // { type: 'emi', name: 'Wise' }

What it does

• mod-97 validation (ISO 13616) and BBAN parsing for 89 countries
• SEPA membership and VoP obligation (EU 2024/886) per country
• EMI / virtual-IBAN detection — tells a real bank apart from Wise, Revolut, N26, Monzo or Modulr
• BIC format validation (ISO 9362)
• A coarse, editorial country risk indicator for AML/CFT triage, offline

What it does not do

The checksum proves an IBAN is well-formed. It cannot tell you who the bank is. That needs a database, and this library ships none:

Question	Here	Needs data
Is this IBAN well-formed?	yes
Is this BIC an EMI / digital bank?	yes
Is this IBAN a virtual IBAN from an EMI?		api.ibanforge.com — needs IBAN → BIC
Which bank is behind it?		api.ibanforge.com
Swiss SIX clearing rails, QR-IID?		api.ibanforge.com
Is the bank sanctioned (OFAC/EU/UN)?		api.ibanforge.com

Every valid result carries an enrich field pointing there. The free tier is 200 requests/month, no card.

getCountryRisk deserves the same candour. It is a hand-maintained editorial judgement, not a reproduction of the FATF or EU lists — it does not track them entry for entry, and it is only as fresh as its last edit. Treat it as a coarse triage signal to layer on top of a live screening feed, never as a substitute for one.

Licence

MIT