# EU VAT Number Validator via VIES

> EU VAT Number Validator via VIES is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).

Validates any EU VAT number against the official VIES service and returns the trader's registered name and address

## Facts

- Endpoint: POST https://api.x-402.online/v1/fr/vat-eu
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eu-vat-number-validator-via-vies-e22bfe49
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2CeBzl_eIed06y6XW1o78

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability eu-vat-number-validator-via-vies-e22bfe49 -d '<json body>'
```

Example prompt: Can you check if the EU VAT number FR12345678901 is valid and tell me the registered company name and address?

## When to prefer this

Use this endpoint when you need to validate an EU VAT number against the authoritative VIES database and retrieve the official trader name and address — ideal for B2B invoicing compliance, KYB checks on European suppliers or customers, or any workflow requiring EU VAT verification

## Known failure modes

- Invalid or malformed VAT number format returns an error or invalid status
- VAT number not found in VIES returns invalid/not registered response
- VIES service temporarily unavailable causes lookup failure
- VAT number from a non-EU country is not supported

## Output

Returns whether the EU VAT number is valid along with the registered trader's official name and address as held by the VIES system

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eu-vat-number-validator-via-vies-e22bfe49/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x-402.online](https://www.zero.xyz/host/api.x-402.online/llms.txt)