# IBAN Validator - Bulk IBAN Checker (`sterlingverify/iban-validator`) Actor

Validate IBANs in bulk: mod-97 checksum, country length, SEPA membership, and extract bank code, branch, UK sort code and account number. Runs offline, so it's fast and private.

- **URL**: https://apify.com/sterlingverify/iban-validator.md
- **Developed by:** [Luke Mangan](https://apify.com/sterlingverify) (community)
- **Categories:** Business, Developer tools, Automation
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$0.50 / 1,000 iban validateds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## IBAN Validator

**IBAN Validator** checks IBANs in bulk: mod-97 checksum, country length and SEPA membership, then extracts the bank code, branch, UK sort code and account number. It runs entirely offline, so no IBAN leaves the run.

**Best for:** Supplier and payout onboarding, payment file checks, CRM data cleansing and SEPA payment preparation.

### How to validate IBANs in bulk

1. Add IBANs to **IBANs** (`ibans`), with or without spaces.
2. Click **Start**.
3. Filter on `valid` and read `error` for any failures.

### How it works

Checks are done entirely inside the Actor using the ISO 13616 algorithm and SWIFT IBAN registry lengths. No IBAN leaves the run. A valid checksum shows the IBAN is well-formed, not that the account exists or is open.

### Output

`input, iban, valid, countryCode, sepa, bankCode, sortCode, accountNumber, formatted, error`

### Pricing (pay-per-event)

- `iban-validated`: **$0.0005** per result ($0.5 / 1,000). Platform usage is included; you pay only for results.
- Example: 10,000 IBANs cost $5.00.

### Example input

```json
{
  "ibans": [
    "GB82WEST12345698765432",
    "FR1420041010050500013M02606",
    "NL91ABNA0417164301"
  ]
}
```

### Example output

Real output for `GB82WEST12345698765432` (a run on 15 Oct 2026). Invalid IBANs also include an `error` message.

```json
{
  "input": "GB82WEST12345698765432",
  "iban": "GB82WEST12345698765432",
  "valid": true,
  "countryCode": "GB",
  "sepa": true,
  "checkDigits": "82",
  "bban": "WEST12345698765432",
  "formatted": "GB82 WEST 1234 5698 7654 32",
  "bankCode": "WEST",
  "branchCode": "123456",
  "sortCode": "12-34-56",
  "accountNumber": "98765432"
}
```

### Use it via API, schedules and integrations

Run it in Apify Console, or call it from your own code with the Apify API or the Python and JavaScript clients. Save an input as a task and add a schedule to run it regularly, and send results to Slack, email, webhooks, Zapier, Make or n8n with Apify integrations. AI agents can find and run it through the Apify MCP server.

```python
from apify_client import ApifyClient

client = ApifyClient("YOUR_APIFY_TOKEN")
run = client.actor("sterlingverify/iban-validator").call(run_input={"ibans": ["GB82WEST12345698765432"]})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)
```

### FAQ

#### Does a valid IBAN mean the account exists?

No. A valid checksum shows the IBAN is well-formed, not that the account exists, is open or who owns it. Use Confirmation of Payee or your bank for that.

#### Is my data sent anywhere?

No. All checks run inside the Actor using the ISO 13616 algorithm and SWIFT IBAN registry lengths.

### Disclaimer

A valid IBAN format does not confirm that an account exists or who owns it; use Confirmation of Payee or your bank for that. Not financial advice.

### Related sterlingVerify tools

Part of the sterlingVerify UK payments, KYB and data toolkit on Apify Store:

- [UK Bank Account Validator](https://apify.com/sterlingverify/uk-sortcode-checker): UK sort code and account number modulus check
- [BIN Lookup](https://apify.com/sterlingverify/bin-lookup): bulk BIN lookup for scheme, type, issuer and country
- [EU VAT Number Validator (VIES)](https://apify.com/sterlingverify/eu-vat-vies-validator): bulk EU VAT number checks against VIES
- [Payments Region Checker](https://apify.com/sterlingverify/payments-region-checker): EEA, SEPA, SCA and interchange classification by country or BIN

# Actor input Schema

## `ibans` (type: `array`):

IBANs in any format (spaces/dashes ignored).

## Actor input object example

```json
{
  "ibans": [
    "GB82 WEST 1234 5698 7654 32",
    "DE89370400440532013000"
  ]
}
```

# Actor output Schema

## `results` (type: `string`):

All results in the default dataset

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "ibans": [
        "GB82 WEST 1234 5698 7654 32",
        "DE89370400440532013000"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("sterlingverify/iban-validator").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "ibans": [
        "GB82 WEST 1234 5698 7654 32",
        "DE89370400440532013000",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("sterlingverify/iban-validator").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "ibans": [
    "GB82 WEST 1234 5698 7654 32",
    "DE89370400440532013000"
  ]
}' |
apify call sterlingverify/iban-validator --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,sterlingverify/iban-validator"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/b6wbIGgg2aAdpDvkZ/builds/Ny8AcslkatASrAprl/openapi.json