# W System Batch Company/VAT/EORI Lookup

> W System Batch Company/VAT/EORI Lookup is a paid API for AI agents from api.wsystem.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-27).

Validates multiple EU VAT numbers (via VIES) and/or EORI numbers in a single batch POST request, returning validity, name, and address for each query.

## Facts

- Endpoint: POST https://api.wsystem.dev/company/batch?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/w-system-batch-company-vat-eori-lookup-784a8716
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dYoZwgs7RfGwXB_mlUWgm

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 w-system-batch-company-vat-eori-lookup-784a8716 -d '<json body>'
```

Example prompt: I need to validate a batch of EU VAT numbers — DE123456789, FR12345678901, and NL123456789B01 — all in one call, can you check them all against VIES at once?

## When to prefer this

Use this endpoint when you need to validate multiple EU VAT or EORI numbers in a single API call rather than making individual requests per number. Ideal for supplier onboarding pipelines, customs compliance workflows, or KYB processes that deal with lists of EU companies at once.

## Known failure modes

- Invalid VAT format returns invalid status rather than an error
- VIES service temporarily unavailable causing lookup failure
- Unsupported country code in query
- Batch limit exceeded causing rejection
- Malformed query array returns 400 error
- Payment not processed (x402) resulting in 402 response

## How this service works

Batch EU company registry lookup in official business registers (up to 25 queries per request)

## Output

An array of results corresponding to each submitted query, each containing the validation status (valid/invalid), and where available the registered company name and address as disclosed by VIES or the EC EOS system.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "queries": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "query": {
      "type": "string"
     },
     "country": {
      "type": "string"
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/w-system-batch-company-vat-eori-lookup-784a8716/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.wsystem.dev](https://www.zero.xyz/host/api.wsystem.dev/llms.txt)