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French Intra-EU VAT Number Computer (SIREN → TVA)
x402
French Intra-EU VAT Number Computer (SIREN → TVA) is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Computes the French intra-EU VAT number (numéro de TVA intracommunautaire) from a SIREN identifier, offline and instantly.
Price / call$0.005
Success—
StatusDown
Output
Returns the computed French intra-EU VAT number (FR + 2-digit key + 9-digit SIREN) derived algorithmically from the provided SIREN, with no external API call required.
Example use cases
Example prompt
“What's the French intra-EU VAT number (numéro TVA intracommunautaire) for the company with SIREN 552032534?”
Technical details
Endpoint
POSThttps://api.x-402.online/v1/fr/tvaWhen to prefer
Use this endpoint when you need to quickly derive a French TVA intracommunautaire number from a known SIREN without hitting official government APIs. Ideal for accounting, invoicing, KYB, or compliance workflows where VAT number enrichment is needed in bulk or in real time. No network call to external registries is made — the result is computed instantly using the deterministic French TVA algorithm.
Side effects
- Invalid or malformed SIREN (not 9 digits) returns an error
- Missing siren query parameter returns a 400 bad request
- Non-numeric SIREN input causes a validation failure
- Payment not received results in a 402 response
Tags
x402
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