# Check Northern Ireland XI VAT numbers

**Use case:** 

Validate Northern Ireland (XI) and Republic of Ireland (IE) VAT numbers through VIES for cross-border B2B invoicing after Brexit.

## Input

```json
{
  "vatNumbers": [
    "XI123456789",
    "IE6388047V"
  ],
  "maxRetries": 3
}
```

## Output

```json
{
  "input": {
    "label": "VAT number as supplied",
    "format": "string"
  },
  "countryCode": {
    "label": "Country code",
    "format": "string"
  },
  "vatNumber": {
    "label": "Number without prefix",
    "format": "string"
  },
  "valid": {
    "label": "Valid in VIES",
    "format": "boolean"
  },
  "status": {
    "label": "valid / invalid / invalid-format / unavailable",
    "format": "string"
  },
  "name": {
    "label": "Registered trader name",
    "format": "string"
  },
  "address": {
    "label": "Registered address",
    "format": "string"
  },
  "requestDate": {
    "label": "VIES request date",
    "format": "string"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The EU VAT Number Validator (VIES) Actor is ready to run with the inputs already set for "Check Northern Ireland XI VAT numbers". [Sign up or log in](https://console.apify.com/create-task-from-example/cYZojJaVf6pPgj3P7) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Check Northern Ireland XI VAT numbers" task

The EU VAT Number Validator (VIES) Actor will start running based on the input automatically. You can also change all the input fields, like VAT numbers and retries when vies is unavailable, to match your specific use case.

### 3. Receive the "Check Northern Ireland XI VAT numbers" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as VAT number as supplied, country code, number without prefix, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Check Northern Ireland XI VAT numbers" task via API](https://apify.com/sterlingverify/eu-vat-vies-validator.md).

## About this Actor

This example demonstrates how to use [EU VAT Number Validator (VIES)](https://apify.com/sterlingverify/eu-vat-vies-validator.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/sterlingverify/eu-vat-vies-validator.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

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 full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/sterlingverify/eu-vat-vies-validator.md

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`).