EU VAT number validation for all 27 member states plus Northern Ireland, via the
EU VAT number validation for all 27 member states plus Northern Ireland, via the European Commission's official VIES service: valid or invalid, and the registered company name and address where the country shares them. Format pre-check, results cached for a day. For invoicing, accounting, B2B onboarding, KYB and e-commerce agents. Input: VAT number with country prefix, e.g. IE6388047V.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
20 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://factline.dev/v1/eu/vat
| Category | Company and compliance |
|---|---|
| Provider host | factline.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.003 | 20 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"vat": "IE6388047V"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"vat": {
"description": "EU VAT number with its 2-letter country prefix, e.g. IE6388047V, NL859048800B01, DE811569869",
"type": "string"
}
},
"required": [
"vat"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}