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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use JS VAT with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Ensure B2B compliance instantly. Validate European VAT numbers and global Tax IDs using strict local mathematical algorithms.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

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

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 1 capability

The complete JS VAT capability set.

These are the exact actions your AI can choose when you ask it to work with JS VAT.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through JS VAT.

  1. 01

    Validate vat

    Pass the tax number string and the engine performs offline mathematical validation against the correct country format. Validates European and international VAT (Value Added Tax) numbers offline using strict country-specific algorithms

Observed, not estimated

806ms average. Fast in production.

JS VAT is checked daily against the live service.

Daily averagePeak 926ms
Aug 20Today
Fastest day
681ms
Slowest day
926ms
14-day trend
Slowing+6%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 JS VAT, so you can see the experience inside your AI.

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

JS VAT Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_R2GmhYreLXbhdtOTpoumP5qeOFc4ejlazomdV4PZ/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 — JS VAT capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "vat-tax-validator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_R2GmhYreLXbhdtOTpoumP5qeOFc4ejlazomdV4PZ/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

FAQ

Questions JS VAT owners ask.

  • 01

    Does it connect to VIES API?

    No, it checks the mathematical format (checksum) local. This guarantees sub-millisecond validation without network dependency.

  • 02

    Which countries are supported?

    All European Union member states (GB, DE, FR, IT, ES, etc).

  • 03

    Does it validate corporate names?

    No, it purely validates the mathematical format of the VAT number itself.

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