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

> EU VAT Number Validation API (x402 Pay-per-call) is a paid API for AI agents from cbs.thesoulnetwork.eu, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Validates an EU VAT number and returns registration details including company name, country, and validity status for $0.01 USDC per call.

## Facts

- Endpoint: GET https://cbs.thesoulnetwork.eu/vat?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eu-vat-number-validation-api-x402-pay-per-call-b87740ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AypKUv9lCrHI1YvQHHD_g

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-api-x402-pay-per-call-b87740ed
```

Example prompt: Can you check whether the EU VAT number NL852378361B01 is valid and tell me what company it belongs to?

## When to prefer this

Choose this endpoint when you need real-time EU VAT number validation with company name lookup at minimal cost ($0.01 per call) and are comfortable with cryptocurrency micropayments via x402 on Base Mainnet. It is part of a broader Dutch/EU open data proxy suite, making it ideal for workflows that also need IBAN, postcode, or CBS data checks in the same ecosystem.

## Known failure modes

- Invalid or malformed VAT number format returns valid: false with no company name
- VAT number not found in registry returns valid: false
- Network or upstream VIES service unavailability causes timeout or error response
- Payment failure (insufficient USDC balance) results in HTTP 402 before query is processed
- Unsupported country prefix returns an error or invalid result

## How this service works

Pay $0.01 USDC per call to validate IBANs, EU VAT numbers and Dutch postcodes, and to query CBS housing, company, domain and EU sanctions data on Base Mainnet.

## Output

A JSON object containing the input VAT number, a boolean validity flag, the country code, the VAT number portion without country prefix, the request date, and the registered company name associated with that VAT number.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "input": "NL852378361B01",
  "valid": true,
  "country": "NL",
  "vatNumber": "852378361B01",
  "requestDate": "2026-01-01T00:00:00Z",
  "registeredName": "Example B.V."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eu-vat-number-validation-api-x402-pay-per-call-b87740ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cbs.thesoulnetwork.eu](https://www.zero.xyz/host/cbs.thesoulnetwork.eu/llms.txt)