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Connect Tax Regime Comparator 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. Find the most cost-effective tax structure for your business.

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

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.

A futuristic MCP client docking bay
V8 Isolate01

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.

Kill Switch02

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.

FinOps per User03

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 · 2 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-02

2 capabilities in this set.

Part of 2 available through Tax Regime Comparator.

  1. 01

    Compare tax regimes

    This capability compares different Brazilian tax regimes to find the most efficient option for your specific business profile.

  2. 02

    Get regime breakdown

    This capability provides a detailed breakdown of specific tax components for a chosen regime.

Real work

What teams actually run

01

New Business Setup

Decide which regime to register under based on your first year's revenue projections.

02

Annual Tax Planning

Check if your current regime is still the cheapest as your revenue grows.

03

Margin Sensitivity Testing

See if a drop in profit margins makes a different tax regime more viable.

04

Audit Preparation

Get a detailed breakdown of tax components for internal financial reviews.

Automate a task

Put Tax Regime Comparator 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

Tax Regime Comparator 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 Tax Regime Comparator 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

719ms average. Fast in production.

Tax Regime Comparator is checked daily against the live service.

Daily averagePeak 923ms
Oct 3Today
Fastest day
517ms
Slowest day
923ms
14-day trend
Slowing+5%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 2 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 Tax Regime Comparator, so you can see the experience inside your AI.

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

Tax Regime Comparator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_zPK04fOq7ZXy2JB5YWoirCqcPivs4QTVb3IF14cX/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 — Tax Regime Comparator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "tax-regime-comparator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_zPK04fOq7ZXy2JB5YWoirCqcPivs4QTVb3IF14cX/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 Tax Regime Comparator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Tax Regime Comparator owners hand off.

This MCP is built for professionals managing Brazilian business finances who need fast, accurate tax simulations.

  • 01

    Accountants

    They hand off complex regime comparisons to the AI to prepare client reports.

  • 02

    Business Owners

    They use the capability to check if their current tax structure is still the most efficient.

  • 03

    Financial Planners

    They run different revenue scenarios to model future tax obligations.

FAQ

Questions Tax Regime Comparator owners ask.

  • 01

    Which Brazilian tax regimes are supported?

    The MCP supports Simples Nacional, Lucro Presumido, and Lucro Real.

  • 02

    How do I use this with Claude or Cursor?

    You connect your client to Vinkius once, and the capabilities become available to your agent in those environments.

  • 03

    Can I see the breakdown for specific taxes like IRPJ?

    Yes, you can use the get_regime_breakdown capability to see specific tax components.

  • 04

    Does the capability account for profit margins?

    Yes, profit margins are a key input used to determine the most efficient regime.

  • 05

    Is this for companies outside of Brazil?

    No, this MCP is specifically designed for the Brazilian taxation system.

  • 06

    How does the comparison work?

    The capability uses your projected revenue and profit margin to calculate the total tax burden under three different legal frameworks: Simples Nacional, Lucro Presumido, and Lucro Real.

  • 07

    What business activities are supported?

    The comparator currently supports TRADE, SERVICES, and MANUFACTURING activity types.

  • 08

    Can I see a detailed breakdown of taxes?

    Yes, you can use the get_regime_breakdown capability to see individual tax components like Federal and Municipal taxes for a specific regime.

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