---
title: "Validate up to 100 EU VAT numbers"
method: POST
path: "/verify/batch"
tags: ["VAT"]
---

# Validate up to 100 EU VAT numbers

`POST /verify/batch`

## Request

- Base URL: `https://api.wsystem.dev`
- URL: `https://api.wsystem.dev/verify/batch`
- Auth: none declared

Batch VIES validation. Body: {"vats": [...], "requester": "optional own VAT"}. Same per-item result shape as GET /verify. x402 $0.10 per batch request after the free tier.

## Request body

- Batch
  - `vats` string[], required
  - `requester` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `402`: Payment Required: x402 v2 challenge (PAYMENT-REQUIRED header). Returned when the free tier is used up, or for a bare call without input.
- `422`: Validation Error
- `429`: Free tier used up and x402 disabled

---

[API](https://skmtc.dev/wsystem/apis/w-system-eu-business-data-api-vat-vies-eori-company-registry.md) · [All operations](https://skmtc.dev/wsystem/apis/w-system-eu-business-data-api-vat-vies-eori-company-registry/llms.txt) · [OpenAPI document](https://skmtc.dev/wsystem/apis/w-system-eu-business-data-api-vat-vies-eori-company-registry/revisions/ab39146b346f?raw)