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    "title": "VIES VAT Number Checker — bulk EU VAT validation",
    "description": "Validate EU VAT numbers in bulk against the official VIES service. Format pre-check per country, company name and address, consultation number as proof, automatic retries when a member state is down.",
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            "title": "VAT numbers",
            "uniqueItems": true,
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          "requesterVatNumber": {
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            "description": "Optional. When set, VIES returns a consultation number for each valid check — the official proof that you verified your customer's VAT number on that date (useful for intra-EU zero-rated invoicing)."
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            "minimum": 1,
            "maximum": 5,
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