Bank Data API

Instant IBAN and SWIFT number validation
across the globe.

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We support:

SWIFT / BIC

IBAN

ABA

BSB

IFSC

CLABE

+3 more

Response example — /v1/bank/bic/validate

{
  "bank_data": {
    "bic":  "HYVEDEMM488",
    "city": "BERLIN",
    "name": "UNICREDIT BANK AG (HYPOVEREINSBANK)",
    "zip":  "10896"
  },
  "blz_code": "10020890",
  "valid":    true
}

170+

Countries & territories covered

10+

Bank code standards supported globally

<50ms

Median API response time globally

99.9%

Uptime SLA across all endpoints

All the bank codes your product needs

Validate and enrich bank identifiers globally — instant lookups, normalization, and structured bank metadata.

SWIFT / BIC

Validate BIC format and return bank + branch metadata where available.

GlobalInstant

IBAN

Country-aware validation, checksum verification, and bank routing extraction.

EU/GlobalChecksum

Routing Number (ABA)

US routing validation and bank name + location enrichment.

United StatesLookup

BSB

Australian bank/branch validation and structured institution details.

AustraliaBranch

NSC

Validate National Sort Codes and map to bank/branch when available.

UK/IESort

NCC

National clearing codes validation and institution resolution.

Multi-countryValidate

IFSC

Indian branch code validation with bank/branch address enrichment.

IndiaBranch

HK Bank Code

Hong Kong bank and branch code validation with institution lookup.

Hong KongLookup

Brazil Bank Number

Resolve Brazilian bank numbers to institution names and routing metadata.

BrazilResolve

CLABE

Mexican CLABE validation with bank/branch extraction and checks.

MexicoChecksum

How it works

Validate any bank code in seconds

A simple REST call returns structured bank metadata, enrichment data, and validation status — ready for your payment flows.

Send a code

Pass a BIC, IBAN, routing number, or any supported code to the API via a single GET request with your API key.

We validate

Our engine checks format, checksum, country rules, and cross-references against updated bank registries.

Receive metadata

Get back structured JSON: bank name, branch, city, country, and all available routing details in a predictable schema.

Integrate anywhere

Drop validation into onboarding flows, payment forms, KYC pipelines, or batch processing.

Developer-First

One clean API for every bank identifier

Predictable JSON responses, consistent schemas, and a sandbox environment for instant testing — no surprises in production.

REST API + SDK helpers

Standard JSON REST endpoints. Node.js, Python, and PHP SDKs available on day one.

Real-time & batch validation

Single lookups under 50ms, or submit CSV batches of thousands of codes at once.

Checksum & format validation

IBAN mod-97, BIC format, ABA routing check digits — all verified server-side automatically.

Sandbox & production in one key

Use ?sandbox=true to test against curated fixtures without consuming quota.

GET /v1/bank/bic/validate

// Validate a BIC / SWIFT code
const res = await fetch(
  'https://api.neosdk.com/v1/bank/bic/validate' +
  '?bic=HYVEDEMM488',
  { headers: { 'Authorization': 'Bearer nsk_live_••••••' } }
);

{
  "bank_data": {
    "bic":     "HYVEDEMM488",
    "city":    "BERLIN",
    "name":    "UNICREDIT BANK AG",
    "zip":     "10896",
    "country": "DE"
  },
  "blz_code": "10020890",
  "valid": true
}

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