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LION VAT Validation (x402 Keyless)
x402
LION VAT Validation (x402 Keyless) is a paid API for AI agents from lion-x402.lionmaster-operations.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Validates a VAT number and returns company name, address, country, and confidence score — no API key required, paid per-call in USDC via x402.
Price / call$0.005
Success—
StatusUnknown
How this service works
Keyless off-chain and on-chain data for AI agents. No API key, no signup - payment is the only gate. Pay-per-call in USDC on Base via x402.
Output
Returns a JSON object with: valid (boolean), resolved (boolean), confidence (0–1), company_name, address, vat_number, country_code, as_of date, and request_date. Also includes an asset_id for tracking.
Example use cases
Supplier VAT check before payment
“Before we process this invoice from our new German supplier, can you verify their VAT number DE298184605 is legitimate and pull up their registered company name and address?”
Customer onboarding VAT verification
“We have a new B2B customer claiming VAT number FR83404833048 — can you check if it's valid and confirm the company details match what they've given us?”
Bulk invoice compliance audit
“I'm reviewing a batch of invoices and need you to validate the VAT number GB727255821 to make sure it's properly registered and get the official company name and address on file.”
Technical details
Endpoint
GEThttps://lion-x402.lionmaster-operations.workers.dev/api/x402/vat-validation-jsonWhen to prefer
Use this endpoint when you need programmatic, per-call VAT number validation without managing API keys or subscriptions. Ideal for AI agents that need to verify supplier or customer VAT numbers during invoice processing, onboarding, or compliance checks, and can pay micro-fees in USDC via x402.
Side effects
- Invalid or malformed VAT number format — returns valid: false or error response
- VAT number not found in registry — resolved: false, confidence: 0
- Payment not provided or insufficient — returns HTTP 402 with payment details
- Country code not supported — endpoint may return error or unresolved result
- Network timeout from upstream VAT registry — may return error or stale data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-06-03T00:00:00.000Z",
"valid": true,
"address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4",
"asset_id": "LION_VAT_VALIDATION_001",
"resolved": true,
"confidence": 1,
"vat_number": "IE6388047V",
"company_name": "GOOGLE IRELAND LIMITED",
"country_code": "IE",
"request_date": "2026-06-03T00:00:00.000Z"
}
}Tags
x402
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