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Use European Commission — VIES with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Official EU VIES VAT validation for all 27 member states: instant validity checks, registered company name and address, trader-match scoring, batch checks and s

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Developed, maintained, and hosted by Vinkius.

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 8 capabilities

The complete European Commission — VIES capability set.

These are the exact actions your AI can choose when you ask it to work with European Commission — VIES.

Capability set01 / 02

01-04

4 capabilities in this set.

Part of 8 available through European Commission — VIES.

  1. 01

    Validate vat batch

    Pass a JSON array of VAT numbers, each WITH its country prefix, e.g. '["PT501964843","IE6388047V","DE123456789"]'. Each entry is checked individually against VIES and returned with its own validity, name and address. For single lookups prefer validate_vat. Validate up to 5 EU VAT numbers in one call. mixed member states allowed

  2. 02

    Validate vat details

    Use for KYC/counterparty verification when you need to confirm the customer details actually match the VAT registration. e.g. before zero-rating an intra-EU B2B supply. Note: several member states (BE, EL and others) do not return trader data; score 3 means "no data available", not a mismatch. Full VIES validation with trader-match breakdown: company name, street, postal code, city and approximate-match scores

  3. 03

    Validate vat prefixed

    Spaces, dashes and dots are ignored. GR is mapped to EL (Greece) and UK to XI (Northern Ireland). Use when the input comes from free text, invoices or CRM records where the prefix is embedded. Validate a VAT number written WITH its country prefix (e.g. "PT501964843", "DE123456789"). country auto-detected

  4. 04

    Normalize vat

    Returns the normalized number ready for validate_vat / validate_vat_prefixed. This does NOT confirm the number is registered. always follow with a VIES check. Clean and structurally validate a raw VAT string: strips spaces/punctuation, fixes prefixes and checks the member-state format. no API call

Capability set02 / 02

05-08

4 capabilities in this set.

Part of 8 available through European Commission — VIES.

  1. 05

    Check vies service status

    IMPORTANT: when a country shows Unavailable (e.g. BE or EL are periodically offline for maintenance), VIES cannot confirm numbers from that state and validation must be retried later. invoicing decisions should not rely on an unverifiable check. Also shows whether the VIES on the Web (VoW) service itself is up. Live availability of the VIES validation service for every EU member state

  2. 06

    List member states

    G. PT = 9 digits, NL = 9 digits + B + 2, IE = 7 digits + 1-2 chars) and a real example. Use it to pre-format numbers or to explain a validation failure caused by wrong format. Greece is "EL" (not GR) and Northern Ireland is "XI" (post-Brexit protocol). Reference table of EU member states for VIES: country codes, official VAT format patterns and examples

  3. 07

    Get vat rates

    Use when pricing products for an EU market launch or comparing tax burden across member states. Rates are indicative and change occasionally. for legal decisions always confirm with the national tax authority (and note that VIES validates NUMBERS, not rates). Reference: current standard and reduced VAT rates for all EU member states (for pricing and market-entry decisions)

  4. 08

    Validate vat

    Required: country_code (2-letter member state: AT BE BG CY CZ DE DK EE EL ES FI FR HR HU IE IT LT LU LV MT NL PL PT RO SE SI SK XI. Greece is EL, Northern Ireland is XI) and vat_number (digits/characters WITHOUT the country prefix). A valid result includes the registered trading name and address. use it to verify a counterparty before invoicing cross-border. For the full company-match breakdown use validate_vat_details. Validate an EU VAT number against the official VIES system of any member state. returns validity, registered company name and address

One connector, every AI

European Commission — VIES works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put European Commission — VIES to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 8 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of European Commission — VIES, so you can see the experience inside your AI.

It does not authenticate your account with European Commission — VIES. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

European Commission — VIES Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_JAhXz64XUOPjnF7pHpYelMTbbWwvC1nm9vSCQauZ/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — European Commission — VIES capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "eu-vat-validator-vies-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_JAhXz64XUOPjnF7pHpYelMTbbWwvC1nm9vSCQauZ/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? link.label

See all the AI clients this connector works with ↑

FAQ

Questions European Commission — VIES owners ask.

  • 01

    Do I need an API key or registration to use this MCP?

    No. VIES is a free public service of the European Commission. every capability in this MCP works without any authentication. The batch capability is limited to 5 numbers per call out of respect for fair use.

  • 02

    Why do some valid VAT numbers return no company name or address?

    Member states decide how much data they share through VIES. Belgium, Greece and others return validity only (match score 3 = 'no data returned'). The number is still legally valid. only the trader data is withheld. Use the matchScore legend in validate_vat_details to interpret results correctly.

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