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x402-farm French KYB Verification
x402
x402-farm French KYB Verification is a paid API for AI agents from x402-farm.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Validates a French company's SIREN number and checks VAT compliance status via VIES, returning a CONFORME/non-CONFORME verdict.
Price / call$0.1
Success—
StatusUnknown
How this service works
Pay-per-call APIs for AI agents — x402 protocol, USDC on Base, no account needed.
Output
Returns a JSON object with the company SIREN, fiscal compliance details including whether TVA is validated via VIES, and an overall verdict string — either CONFORME (compliant) or a non-compliant status.
Example use cases
Onboarding French supplier compliance check
“Before we onboard this French supplier, can you verify their SIREN 306138900 is valid and confirm they're VAT-compliant through VIES?”
Cross-border payment due diligence
“I need to wire money to a French company — their SIREN is 306138900. Can you do a quick KYB check to make sure they're fiscally registered and compliant before I proceed?”
Automated vendor verification workflow
“We have a new French vendor claiming SIREN 506 880 150 — can you check if they're properly registered and pass the VIES VAT validation so we can mark them as approved in our system?”
Technical details
Endpoint
GEThttps://x402-farm.vercel.app/v1/fr/kybWhen to prefer
Use this endpoint when you need a lightweight, no-account pay-per-call KYB check specifically for French companies, particularly when you need VIES VAT validation combined with SIREN verification in a single call. Prefer this over building custom registry integrations when cost-per-query economics work at $0.10 USDC and you want a ready-made compliance verdict.
Side effects
- Invalid or non-existent SIREN number returns an error or non-CONFORME verdict
- VIES service temporarily unavailable causes validation failure
- Malformed query parameters result in 400 Bad Request
- Payment failure (insufficient USDC) results in 402 Payment Required before any data is returned
- Rate limiting or network timeouts on external registry lookups
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"siren": "306138900",
"fiscal": {
"tva_validee_vies": true
},
"verdict": "CONFORME"
}
}Tags
x402
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