{"uid":"cap_7mjjDlMPqNfBwltrOeR0I","slug":"eu-vat-number-validation-via-vies-w-system-api-d003bd8b","name":"EU VAT Number Validation via VIES (W System API)","description":"EU VAT number validation via official VIES (all 27 EU states + XI): valid/invalid, name, address, consultation (proof) number","url":"https://api.wsystem.dev/verify?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["vat"],"properties":{"vat":{"type":"string","description":"EU VAT ID with country prefix"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"vat":"IE6388047V","name":"GOOGLE IRELAND LIMITED","valid":true,"status":"valid","address":"3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4","consultation_number":"WAPIAAAAaE_hpYRy"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_n0jei2WMLEEHXbCOaCnnB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an EU VAT number against the official VIES system, returning validity status, registered business name, address, and a consultation (proof) number for all 27 EU member states plus Northern Ireland (XI).","exampleAgentPrompt":"Can you check if the VAT number IE6388047V is valid? I need the registered company name, address, and a consultation number as proof.","exampleUseCases":[{"title":"Supplier VAT check before invoicing","prompt":"Before I issue this B2B invoice, verify that the VAT number DE811128135 is active on VIES and give me the company name and address tied to it."},{"title":"Onboarding KYB for EU business customers","prompt":"We're onboarding a new business customer who gave us VAT number FR40303265045 — can you confirm it's valid and pull the registered name and address from VIES?"},{"title":"Audit-ready VAT proof for accountant","prompt":"I need to prove that GB123456789 was a valid VAT number at the time of the transaction — validate it through VIES and get me a consultation number I can attach to the audit file."}],"resultDescription":"Returns a JSON object containing the queried VAT number, whether it is valid or invalid, the registered business name, the registered address, and a unique consultation number that serves as official proof of the VIES query — suitable for audit and compliance documentation.","failureModes":["Invalid VAT format (missing or wrong country prefix) — returns error or invalid status","VIES service temporarily unavailable (EU system downtime) — may return an error or timeout","VAT number not found in VIES — returns valid: false with no name/address","Non-EU country prefix passed — not supported, returns error","Payment failure (x402 protocol) — call not executed"],"whenToPreferThis":"Choose this endpoint when you need authoritative, real-time EU VAT number validation directly from the official VIES system with a consultation number as legal proof. Prefer it over unofficial or cached VAT checkers when audit-readiness, B2B invoice compliance, or KYB onboarding requires an official government-backed response. It covers all 27 EU member states plus Northern Ireland (XI prefix), making it the most comprehensive single-call option for EU VAT validation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:31:26.075Z","isFirstParty":false,"canonicalSlug":"eu-vat-number-validation-via-vies-w-system-api-d003bd8b"}