# GET /eu/vat: $0.005 per call

Check an EU VAT number live against the European Commission's VIES system: valid or not, and the registered company name and address where the member state shares them. Northern Ireland (XI) numbers included. Sole traders' names are withheld (personal data).

- **Price:** $0.005 in USDC, the same on Base, Solana, Polygon, Arbitrum. Failed calls are never charged.
- **Free trial:** yes, 20 free calls a day from Claude, Cursor or any MCP client ([set-up](/mcp/setup)).
- **Tier:** live
- **Answers cached for:** 1 hour(s)
- **Data sources:** EU VIES (free, European Commission)
- **Lane:** UK & EU open data ([OpenAPI](/openapi/uk-data.json))
- **Live health:** [status page](/status)

## Free sample

See an answer for the demo input first, free (no payment, 10 a minute): [https://aayatai.com/sample/eu-vat](/sample/eu-vat). It is a stored real answer when we have one, otherwise an example marked `"kind": "illustrative"`.

```bash
curl "https://aayatai.com/sample/eu-vat"
```

## 1. See the price (free)

Call it without paying: you get `402 Payment Required` and a `PAYMENT-REQUIRED` header with the exact price and where to pay.

```bash
curl -i "https://aayatai.com/eu/vat?number=IE6388047V"
```

## 2. Pay and call (TypeScript)

```bash
npm install @x402/fetch @x402/evm viem
```

```ts
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

// A wallet used only by your agent, holding a little USDC on Base.
const account = privateKeyToAccount(process.env.WALLET_PRIVATE_KEY as `0x${string}`);
const pay = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});

const res = await pay("https://aayatai.com/eu/vat?number=IE6388047V");
console.log(await res.json());
```

## 3. Or as an MCP tool

```ts
// MCP server: https://aayatai.com/mcp (Streamable HTTP). With the x402 MCP client (see /start):
const result = await client.callTool("eu-vat", {"number":"IE6388047V"});
```

## Inputs

- `number` **(required)** (string): VAT number with its country prefix, e.g. DE811569869.

Bad inputs are rejected with HTTP 400 before any payment is asked for.

## Example answer

```json
{
  "valid": true,
  "country": "IE",
  "vatNumber": "IE6388047V",
  "name": "GOOGLE IRELAND LIMITED",
  "address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4",
  "withheld": false,
  "checkedAt": "2026-09-28T09:00:00.000Z",
  "source": "EU VIES"
}
```

## Related

- [GET /uk/postcode](/services/uk-postcode) ($0.003): UK postcode lookup: coordinates, country, region, local authority, ward, parish, parliamentary constituency, LSOA/MSOA and official ONS codes.
- [GET /uk/area](/services/uk-area) ($0.01): UK area profile for a postcode or postcode district (e.g.
- [GET /uk/food-hygiene](/services/uk-food-hygiene) ($0.005): UK food hygiene ratings (Food Standards Agency) for restaurants, takeaways, shops and other food businesses: rating (0-5 or Pass/Improvement Required in Scotlan
- [GET /uk/house-prices](/services/uk-house-prices) ($0.01): Sold house prices for any England or Wales postcode from HM Land Registry Price Paid data (1995 to date): each sale's price, date, address, property type (detac
- [GET /uk/company](/services/uk-company) ($0.005): UK company check from Companies House: search by ?q=name, or pass ?number=00445790 for the full profile: status, type, incorporation date, registered office, SI
- [GET /uk/bank-holidays](/services/uk-bank-holidays) ($0.001): Official UK bank holidays (England & Wales, Scotland, Northern Ireland) from GOV.UK.
- [GET /eu/fx](/services/eu-fx) ($0.002): Official ECB euro foreign-exchange reference rates for about 30 currencies, converted to any base (GBP, USD, EUR...).
- [GET /eu/lei](/services/eu-lei) ($0.005): Look up legal entities in the global LEI register (GLEIF, 2.9M+ companies and funds worldwide): by LEI (with direct and ultimate parent companies), by name, or 

New here? [Getting started in 60 seconds](/start). All services: [Aayat AI](/).