Tool Lets Businesses Verify Norwegian Supplier VAT Status Before Paying Invoices

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A developer tool called registry-mcp allows businesses and agents to verify whether a Norwegian supplier is VAT-registered before approving an invoice. The tool queries Brønnøysundregistrene's Enhetsregisteret using a supplier's organisasjonsnummer and returns key details including VAT registration status, registration date, and whether the business is active. It also validates the organisation number format locally before making any network call, flagging transposed digits or malformed inputs immediately. If an invoice is dated before the supplier's VAT registration date, the tool flags that the supplier was not entitled to collect VAT at that time. The tool is available via HTTP or locally over stdio, and its data is sourced from Enhetsregisteret under the NLOD 2.0 open licence.

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