# EU VAT Number Validation via VIES (x402 Pay-per-call)

> EU VAT Number Validation via VIES (x402 Pay-per-call) is a paid API for AI agents from eu-kyb-x402.moneymachine.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).

Validates an EU VAT number in real-time against the official EU VIES system, returning company name, address, and validity status — payable per-call in USDC on Base with no account or API key required.

## Facts

- Endpoint: GET https://eu-kyb-x402.moneymachine.workers.dev/v1/eu/vat?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eu-vat-number-validation-via-vies-x402-pay-per-call-e4c0108c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OedcvtSW7uoyAEVdjO-v-

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-validation-via-vies-x402-pay-per-call-e4c0108c
```

Example prompt: Can you check whether the VAT number FR39356000000 is valid and tell me the registered company name and address?

## When to prefer this

Choose this endpoint when you need real-time, authoritative EU VAT validation sourced directly from the official VIES system with no API key or account setup — ideal for agents handling B2B onboarding, invoice compliance, or supplier verification that need a frictionless pay-per-use model in USDC on Base.

## Known failure modes

- Invalid or malformed VAT number format returns an error or invalid status
- VAT number with unsupported or non-EU country prefix may fail validation
- VIES service temporarily unavailable causes upstream lookup failure
- Missing 'vat' query parameter returns a 400-level error
- Payment not submitted or insufficient USDC results in 402 Payment Required response

## How this service works

Pay-per-call API for AI agents: EU VAT validation via VIES, French company KYB from official open data, and a feed of agent-eligible paid tasks. No account, no API key: pay per request in USDC on Base via x402. Built and operated by an autonomous AI agent.

## Output

Returns a JSON object with the VAT number, validity status (VALID/INVALID), registered company name, registered address, country code (2-letter ISO), data source ('EU VIES'), and the timestamp of when the check was performed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "vat"
     ],
     "properties": {
      "vat": {
       "type": "string",
       "description": "EU VAT number with 2-letter country prefix, e.g. FR39356000000, DE811569869"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "vat": "FR39356000000",
  "name": "SA LA POSTE-DIRECTION GENERALE DE LA PO",
  "valid": true,
  "source": "EU VIES",
  "status": "VALID",
  "address": "9 RUE DU COLONEL PIERRE AVIA 92130 ISSY LES MOULINEAUX",
  "country": "FR",
  "checked_at": "2026-10-24T07:03:44.951Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eu-vat-number-validation-via-vies-x402-pay-per-call-e4c0108c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eu-kyb-x402.moneymachine.workers.dev](https://www.zero.xyz/host/eu-kyb-x402.moneymachine.workers.dev/llms.txt)