validate_eu_vat_number

eu.sirenic/sirenic · Verify this server

VAT number check against VIES — use when you only need the tax half of verifying a supplier before payment: confirm that a counterparty's intra-community VAT number really exists before invoicing it, applying the reverse charge or paying it. It is a required check under the French e-invoicing mandate of 1 September 2026 and under the Belgian B2B mandate in force since 1 January 2026. Validates any EU intra-community VAT number against the official VIES service (all member states) and returns valid / invalid / unavailable, the registered name and address when the member state publishes them, and the VIES consultation identifier as proof. A member-state outage is reported as unavailable, never as a false invalid. The response is Ed25519-signed and carries provenance[]: the VIES entry with the date the number was really consulted, never a fabricated one. Paid via x402 ($0.003 in USDC or EURC).