{"uid":"cap_6ESYQlGx_ZvdHoul9sK9A","slug":"croatian-vat-number-checksum-validator-8884df75","name":"Croatian VAT Number Checksum Validator","description":"Call when an agent needs whether a HR VAT checksum is valid. No registry lookup. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hr first.","url":"https://agentshelf.syntexa.ch/v1/check-vat-hr?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"data":{"description":"JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."},"value":{"type":"string","examples":["00000000029"],"maxLength":20000,"minLength":1,"description":"Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."},"schema":{"description":"JSON Schema document for schema-check SKUs. Omit it on string checks."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rbB3hqKGtHPnbbibtKntM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether a Croatian (HR) VAT number passes the checksum algorithm, without performing a live registry lookup.","exampleAgentPrompt":"Can you check if the Croatian VAT number HR12345678901 has a valid checksum — I just need to know if the number itself is structurally correct, no registry lookup needed.","exampleUseCases":[{"title":"Invoice validation before submission","prompt":"I'm about to send an invoice to a Croatian company and I have their VAT number HR85613832429 — can you verify the checksum is correct before I submit?"},{"title":"Batch onboarding data quality check","prompt":"We just imported a Croatian supplier record with VAT number HR33392005961 — can you confirm the checksum is valid so I know the data isn't corrupted?"},{"title":"E-commerce checkout tax ID verification","prompt":"A customer at checkout entered HR12345678901 as their Croatian VAT number — does it pass the checksum so I can decide whether to accept it?"}],"resultDescription":"Returns a boolean or structured result indicating whether the provided Croatian VAT number passes the HR VAT checksum algorithm. No external registry is contacted; only mathematical validity is confirmed.","failureModes":["Empty or missing value field returns an error","Non-string or overly long input may be rejected","Input that is not a recognizable HR VAT format may return invalid without detailed error","Payment not included results in HTTP 402 response"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap, offline checksum-only validation of a Croatian (HR) VAT number and do not need to confirm the number is actually registered with the Croatian tax authority. Prefer the free sandbox endpoint /v1/sandbox/check-vat-hr for testing before paying.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T00:45:49.045Z","isFirstParty":false,"canonicalSlug":"croatian-vat-number-checksum-validator-8884df75"}