
Connect EU Vat Calculator to ChatGPT, Claude and Gemini
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Automate tax calculations and compliance across 27 EU member states.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 3 capabilities
We ship only the actions that matter.
01-03
3 capabilities in this set.
Part of 3 available through EU VAT Engine.
- 01
Check vat compliance
This capability identifies which specific VAT rule applies to a given transaction. It helps your agent determine if a sale should follow Domestic VAT, Reverse Charge, or OSS protocols.
- 02
Compute transaction tax
This capability calculates the exact tax amount and the final total for a transaction. It works for domestic, B2C cross-border, and B2B scenarios.
- 03
Lookup vat rate
This capability finds the correct VAT percentage for a specific country and product category. It covers standard, reduced, and essential goods tiers.
Real work
What teams actually run
E-commerce Checkout
An agent calculates the final price for a customer in a different EU country based on their location.
Automated Invoicing
The MCP determines the correct tax amount to include on a B2B invoice using reverse charge rules.
Tax Auditing
An agent checks a list of past transactions to ensure the correct VAT rules were applied.
Financial Planning
Developers use the rate lookup to estimate tax liabilities for new product categories in specific countries.
Automate a task
Put EU VAT Engine to work on one thing.
Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.
One connector, every AI
EU VAT Engine 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.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put EU VAT Engine 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.
Observed, not estimated
701ms average. Fast in production.
EU VAT Engine is checked daily against the live service.
- Fastest day
- 546ms
- Slowest day
- 797ms
- 14-day trend
- Slowing+12%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 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 EU VAT Engine, so you can see the experience inside your AI.
It does not authenticate your account with EU VAT Engine. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
EU VAT Engine Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_JAUesYl5btRPCR1gaQnlrg9oeNtmgZie85rbEg4y/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — EU VAT Engine capabilities are ready to use.
{
"mcpServers": {
"eu-vat-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_JAUesYl5btRPCR1gaQnlrg9oeNtmgZie85rbEg4y/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? Set up EU VAT Engine in Claude and other AIs
Who it's for
Built for the work EU VAT Engine owners hand off.
This MCP is built for professionals managing financial data or software within the European market.
- 01
E-commerce Developers
They use the MCP to automate tax calculations during the checkout process.
- 02
Accountants
They use the agent to verify transaction compliance and tax accuracy.
- 03
Fintech Engineers
They integrate these capabilities into automated accounting and invoicing software.
FAQ
Questions EU VAT Engine owners ask.
- 01
Which countries are covered by this MCP?
The MCP covers all 27 member states of the European Union.
- 02
Can it handle different types of goods?
Yes, it supports standard, reduced, and essential goods categories to find the correct rate.
- 03
How does it handle B2B sales?
The MCP can identify and calculate Reverse Charge scenarios for B2B cross-border transactions.
- 04
Does it support the One Stop Shop (OSS) model?
Yes, it includes capabilities to compute B2C cross-border transactions under the OSS rule.
- 05
What AI clients can I use with this?
You can use any MCP-compatible client, including Claude, Cursor, and Windsurf.
- 06
How do I find the VAT rate for a specific product in Germany?
Use the lookup_vat_rate capability by providing 'DE' as the country code and specifying the appropriate category, such as 'Standard Goods', 'Reduced Goods', or 'Essential Goods'.
- 07
Does this capability handle B2B transactions between different EU countries?
Yes. By using compute_transaction_tax with the 'B2B' transaction type and differing origin/destination country codes, the capability will identify the Reverse Charge mechanism and return a zero tax amount.
- 08
How can I verify if a transaction follows OSS rules?
You can use the check_vat_compliance capability. By setting isCrossBorder to true and isBusinessBuyer to false, the capability will confirm if the 'OSS' rule applies.
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Connect EU VAT Engine to Claude, Cursor, ChatGPT & more
