{"uid":"cap_NTwaAbBtuIV3lchmj7ANs","slug":"strale-vat-number-format-validator-46123b8d","name":"Strale VAT Number Format Validator","description":"The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.","url":"https://api.strale.io/x402/v2/vat-format-validate","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_number"],"properties":{"vat_number":{"type":"string","description":"VAT number including country prefix (e.g. SE556703748501)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0216","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":"$0.0216/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C81_jMvbipWsSgRrTfivt","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0216","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates the format of a VAT number (including country prefix) against country-specific rules for 27+ countries","exampleAgentPrompt":"Can you check whether the VAT number SE556703748501 is correctly formatted?","exampleUseCases":[{"title":"Pre-invoice VAT validation","prompt":"Before I send this invoice to our German supplier, check that their VAT number DE812345678 is in the right format."},{"title":"E-commerce checkout compliance","prompt":"A customer just entered GB123456789 as their VAT number at checkout — is that a valid UK VAT number format?"},{"title":"Bulk supplier onboarding check","prompt":"We're onboarding a new vendor from France and they gave us FR40303265045 as their VAT number — can you verify it's correctly formatted?"}],"resultDescription":"Returns whether the provided VAT number is valid according to the format rules for the indicated country prefix, along with an audit record containing a cryptographic chain hash for traceability.","failureModes":["Missing or malformed vat_number parameter returns a validation error","Unsupported country prefix returns an error indicating the country is not covered","Purely syntactic/format check — does not confirm the number is registered with a tax authority","Network timeout or service unavailability returns a 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a fast, auditable, format-level VAT number check across 27+ countries without needing real-time registry lookup. Ideal for pre-invoice validation, supplier onboarding, and compliance workflows where you need a cryptographic audit trail of each check. Prefer over manual regex validation or unaudited validators when tamper-evident records matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:15:45.266Z","isFirstParty":false}