{"uid":"cap_Rn1qXKnA5OINSDjdeweFB","slug":"estonia-vat-number-checksum-validator-8a429754","name":"Estonia VAT Number Checksum Validator","description":"Call when an agent needs whether a EE VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-ee first.","url":"https://agentshelf.syntexa.ch/v1/check-vat-ee?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":["000000013"],"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":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_SFsZyKISWdY9a0DLNgA4c","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates the checksum of an Estonian (EE) VAT number without performing a live registry lookup","exampleAgentPrompt":"Can you check whether the Estonian VAT number EE123456789 has a valid checksum — just a local format check, no registry lookup needed?","exampleUseCases":[{"title":"E-commerce supplier validation","prompt":"I'm onboarding a new Estonian supplier and they gave me VAT number EE101234567 — can you verify the checksum is structurally correct before I add them to our system?"},{"title":"Bulk invoice pre-screening","prompt":"Before I submit this batch of invoices, can you check if the Estonian VAT number EE987654321 passes its checksum? I don't need a live registry check, just format validation."},{"title":"Form input real-time validation","prompt":"A user just typed EE102345678 as their VAT number on our checkout form — is the checksum valid so I can tell them immediately if it looks right?"}],"resultDescription":"Returns a boolean or structured result indicating whether the provided Estonian VAT number passes the local checksum algorithm, without querying any external tax authority registry.","failureModes":["Input string is empty or missing — returns validation error","VAT number exceeds 20000 character limit — rejected","Malformed input not matching EE VAT format — may return invalid or error","Network or payment failure prevents request from completing"],"whenToPreferThis":"Use this endpoint when you need fast, offline checksum-only validation of an Estonian VAT number and do not require a live VIES or Estonian Tax Authority registry lookup. Ideal for real-time form validation, pre-screening, or situations where network calls to external registries are unavailable or undesirable. At $0.001 USDC per call it is cost-effective for high-frequency checks; use the free sandbox endpoint /v1/sandbox/check-vat-ee first during development.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:49:53.375Z","isFirstParty":false,"canonicalSlug":"estonia-vat-number-checksum-validator-8a429754"}