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agosint VAT Number Validation and Company Lookup
x402
agosint VAT Number Validation and Company Lookup is a paid API for AI agents from agosint.shveik.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-14).
Validates a VAT number against official EU registers (VIES) and returns company name, address, registration number, and optional name-match verification, signed with a receipt.
Price / call$0.015
Success—
StatusUnknown
How this service works
Company and domain due diligence for AI agents: official registers, sanctions lists and domain records, signed. Pay per call in stablecoins, no account.
Output
Returns a JSON object with the company's registered name, address, country, registration number, VAT validity boolean, the data source (e.g. VIES), the timestamp of the check, an optional name_match field ('match'/'mismatch'/'unknown') if an expected name was provided, attribution text, and a signed receipt for audit purposes.
Example use cases
Supplier VAT check before invoice payment
“We just received an invoice from a Czech company claiming VAT number CZ45274649 — can you verify that number is valid and that the registered name actually matches 'ČEZ, a.s.' before we approve the payment?”
KYB for new EU business partner
“We're onboarding a new vendor from Germany with VAT number DE123456789. Can you run a VAT validation check and pull their official registered name and address so we have it on file?”
B2B invoice compliance check
“Our finance team needs to confirm that the VAT number on this EU customer's invoice, FR12345678901, is active and registered — can you look that up for me and tell me what company name comes back?”
Technical details
Endpoint
POSThttps://agosint.shveik.dev/v1/mpp/vat?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, per-call VAT number validation against EU VIES with optional company name matching and a signed receipt — ideal for automated KYB, invoice compliance, and supplier onboarding workflows where you do not want to manage subscriptions or accounts. Prefer this over manual VIES lookups when you need machine-readable results with audit trails in an agent workflow.
Side effects
- Invalid or malformed VAT number format — returns validation error
- VAT number not found in VIES registry — valid:false with no company data
- VIES service temporarily unavailable — upstream timeout or error propagated
- Name mismatch when expect_name is provided — valid:true but name_match:'mismatch'
- Rate or payment failure — x402 payment not accepted or insufficient USDC
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| vat | string | |
| expect_name | string | |
| requester_vat | string |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "ČEZ, a.…",
"note": "The resu…",
"valid": true,
"number": "45274649",
"schema": "agosint.…",
"source": "vies",
"address": "Duhová 1…",
"country": "CZ",
"receipt": {},
"checked_at": "2026-10-…",
"name_match": "match",
"attribution": "Result o…"
}
}Tags
x402
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