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OneShot Agent API – Company VAT Registration Lookup
x402
OneShot Agent API – Company VAT Registration Lookup is a paid API for AI agents from win.oneshotagent.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-19).
Validates and retrieves company registration details for a given EU/Northern Ireland VAT number via the VIES system, returning name, address, and registration status.
Price / call$0.005
Success—
StatusUnknown
How this service works
Check whether a VAT number is registered for cross-border trade in an EU member state or Northern Ireland.
Output
Returns a JSON object with the company's registered name, registered address, country code, VAT number, a boolean indicating whether the number is currently registered/valid, and the timestamp of when the check was performed against VIES.
Example use cases
Supplier VAT validation before payment
“Before I process this invoice, can you verify that VAT number DE123456789 registered in Germany is a legitimate registered company and get me their official registered name?”
EU vendor onboarding due diligence
“I'm onboarding a new French supplier who gave me VAT number FR40303265045 — can you look that up and confirm they're VAT registered and get their official company name and address?”
Northern Ireland cross-border compliance check
“We have a vendor claiming to be VAT registered in Northern Ireland with number XI123456789 — can you verify that number is valid and pull their registered business details?”
Technical details
Endpoint
POSThttps://win.oneshotagent.com/v1/tools/lookup/company-vat-registration?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time, authoritative verification of an EU or Northern Ireland VAT number directly against the VIES database. Prefer it over manual lookups or third-party company databases when you specifically need to confirm VAT registration status for invoicing, compliance, or vendor onboarding workflows. It covers all 27 EU member states plus Northern Ireland (XI) at a very low per-call cost with no API key required.
Side effects
- VAT number not found or not registered returns registered: false
- Invalid country code returns a validation error
- Malformed VAT number (wrong length or characters) returns a 400 error
- VIES system temporarily unavailable may cause timeouts or 5xx errors
- Leading country prefix in vat_number field is automatically stripped but double prefix may cause lookup failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| country | string | Two-letter code the source uses: the 27 EU member states (EL for Greece) or XI for Northern Ireland |
| vat_number | string | The VAT number, 2 to 14 letters and digits once spaces, dots and dashes are removed; a leading country code equal to country is removed. 2 to 40 characters. letters, digits, spaces, dots and dashes only. |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "GOOGLE IRELAND LIMITED",
"address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4",
"country": "IE",
"checked_at": "2026-10-13T14:24:09.159Z",
"registered": true,
"vat_number": "6388047V"
}
}Tags
x402
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