# Turkish Tax Number (VKN) and IBAN Validator (`cexxz34/tr-vkn-iban-checker`) Actor

Bulk offline validation of Turkish tax numbers (VKN) and IBANs with checksum checks and clear Turkish/English reasons. No external calls.

- **URL**: https://apify.com/cexxz34/tr-vkn-iban-checker.md
- **Developed by:** [Arda Cem](https://apify.com/cexxz34) (community)
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 1 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.50 / 1,000 value checkeds

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

## Vergi Numarası (VKN) ve IBAN Doğrulama

Muhasebe, e-ticaret ve CRM verilerindeki vergi kimlik numaralarını (VKN) ve IBAN'ları toplu olarak kontrol edin. Yanlış yazılmış numaraları fatura veya ödeme göndermeden önce yakalayın.

Kontroller çevrimdışı yapılır. Dış servis çağrılmaz, girdiğiniz değerler başka yere gönderilmez.

### Ne kontrol eder?

- **VKN**: 10 hane ve kontrol hanesi. Boşluk, nokta ve tire temizlenir.
- **IBAN**: Biçim, MOD-97 sağlama toplamı ve Türkiye için 26 karakter uzunluğu. Türkiye IBAN'larında banka kodu ve hesap numarası ayrı alan olarak verilir. Diğer ülkelerin IBAN'ları da sağlama toplamı ile kontrol edilir.
- Her sonuç için Türkçe ve İngilizce açıklama.

### Nasıl kullanılır?

1. "Değerler" listesine VKN veya IBAN yazın ya da "Yapıştırılmış liste" kutusuna her satıra bir değer yapıştırın.
2. Tür "Otomatik" kalabilir. 10 haneli rakam VKN, ülke koduyla başlayan değer IBAN sayılır.
3. Start'a basın. Sonuç Dataset sekmesinde tablo olarak görünür; özet `SUMMARY` kaydındadır.

### Girdi

| Alan | Açıklama |
|---|---|
| `values` | Değer listesi, her öğe bir değer |
| `valuesText` | Yapıştırılmış metin, her satır bir değer |
| `defaultType` | `auto`, `vkn` veya `iban`. Varsayılan: `auto` |

### Örnek sonuç

Aşağıdaki çıktı, actor'ün yerel testinden alınmıştır.

```json
[
  { "index": 1, "input": "1111111114", "type": "vkn", "valid": true, "reason": null },
  { "index": 2, "input": "TR330006100519786457841326", "type": "iban", "valid": true,
    "formatted": "TR33 0006 1005 1978 6457 8413 26",
    "details": { "country": "TR", "length": 26, "bankCode": "00061" } },
  { "index": 3, "input": "1111111115", "type": "vkn", "valid": false,
    "reason": "Kontrol hanesi hatalı. / Check digit mismatch." },
  { "index": 4, "input": "not-a-number", "type": "unknown", "valid": false,
    "reason": "Tür belirlenemedi. 10 haneli VKN veya IBAN girin. / Could not detect type." }
]
```

### Fiyat

Kullandıkça öde (pay-per-event). Kontrol edilen her değer bir `value-checked` olayıdır. Harcama limitiniz yetmezse actor yalnız limit kadar değeri işler.

### Sınırlar

- Bu bir **sağlama toplamı** kontrolüdür. Numaranın gerçekten var olduğunu, bir mükellefe veya hesaba ait olduğunu doğrulamaz.
- Banka adı eşlemesi yapılmaz; yalnız banka kodu verilir.
- T.C. kimlik numarası kontrol edilmez.
- Resmi doğrulama için Gelir İdaresi Başkanlığı veya bankanız esas alınmalıdır.

### Kişisel veri

- Girdi yalnız bu çalıştırmanın dataset'ine yazılır, başka yere gönderilmez.
- IBAN ve VKN gerçek kişilere ait olabilir. Yalnız işlemeye hakkınız olan verileri girin.

***

## Turkish Tax Number (VKN) and IBAN Validator

Bulk-check Turkish tax identification numbers (VKN) and IBANs in your accounting, e-commerce or CRM data. Catch typos before sending invoices or payments.

All checks run offline. No external service is called and your values are not sent anywhere.

### What it checks

- **VKN**: 10 digits and the check digit. Spaces, dots and dashes are stripped.
- **IBAN**: format, MOD-97 checksum and the 26-character length for Turkey. Turkish IBANs also return the bank code and account number as separate fields. IBANs from other countries are checked with the checksum.
- A Turkish and English reason for every failure.

### Input

| Field | Description |
|---|---|
| `values` | List of values, one per entry |
| `valuesText` | Pasted text, one value per line |
| `defaultType` | `auto`, `vkn` or `iban`. Default: `auto` |

### Output

- Dataset: one item per value with `type`, `valid`, `normalized`, `reason` and `details`.
- Key-value store: `SUMMARY` with counts of valid and invalid values.

### Pricing

Pay per event. Each checked value is one `value-checked` event.

### Limitations

- This is a **checksum** check. It does not confirm that a number exists or belongs to a taxpayer or account.
- No bank-name lookup, only the bank code.
- Turkish national ID numbers are not checked.
- For official confirmation, use the Turkish Revenue Administration or your bank.

# Actor input Schema

## `values` (type: `array`):

VKN (10 hane) veya IBAN. Her öğe bir değer. / VKN (10 digits) or IBAN, one per entry.

## `valuesText` (type: `string`):

Her satır bir değer. / One value per line.

## `defaultType` (type: `string`):

auto: değere bakıp türü kendisi seçer. / auto detects the type from the value.

## Actor input object example

```json
{
  "values": [
    "1111111114",
    "TR330006100519786457841326"
  ],
  "defaultType": "auto"
}
```

# Actor output Schema

## `dataset` (type: `string`):

Dataset with one item per value.

## `files` (type: `string`):

Key-value store with SUMMARY (JSON).

# 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 = {
    "values": [
        "1111111114",
        "TR330006100519786457841326"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("cexxz34/tr-vkn-iban-checker").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 = { "values": [
        "1111111114",
        "TR330006100519786457841326",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("cexxz34/tr-vkn-iban-checker").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 '{
  "values": [
    "1111111114",
    "TR330006100519786457841326"
  ]
}' |
apify call cexxz34/tr-vkn-iban-checker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,cexxz34/tr-vkn-iban-checker"
        }
    }
}
```

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/nEHkwngzF9ZiBwOMS/builds/4G9LaN47ZEzCUIa1a/openapi.json