How to Use the Tax Regime Comparator MCP in Cursor

Calculate your optimal Brazilian tax regime while coding in Cursor. Get live tax breakdowns injected directly into your financial app logic.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers — Included with Plan

Connect Tax Regime Comparator MCP to Cursor

Create your Vinkius account to connect Tax Regime Comparator to Cursor — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

GDPR Included with Plan

Setup Tax Regime Comparator with Cursor

Ask AI about this MCP

ChatGPT

Claude

Perplexity Vinkius runs on Gemini

Gemini

Grok

Inject live tax data in Cursor agent mode

The `compare_tax_regimes` tool lets your AI agent pull real tax calculations while you build your billing module. You get actual Simples Nacional versus Lucro Real numbers right in your code editor. This MCP Server replaces hardcoded tax rates in your application. Your agent fetches the current efficient structure and writes the logic based on live parameters.

Validate tax brackets during development

The `get_regime_breakdown` tool provides the exact PIS and COFINS percentages when your billing logic needs to split taxes correctly. You stop guessing at statutory rates and get the precise components for Lucro Presumido. Your agent uses this data to generate accurate invoice calculation functions. The code matches the legal requirements instead of relying on outdated mock data.

Build financial dashboards with real MCP data

Cursor agent mode reads the tool responses and builds your UI components. You get working React or Vue code that displays the tax comparison results to your users. The MCP connection ensures your frontend displays actual regime efficiencies. You ship a functional tax calculator instead of a static prototype.

Setup guide

Set up Tax Regime Comparator MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Tax Regime Comparator MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Tax Regime Comparator transactions." If the MCP tools are loaded correctly, Cursor will call the Tax Regime Comparator tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "tax-regime-comparator-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Tax Regime Comparator. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect Tax Regime Comparator now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Tax Regime Comparator MCP in Cursor

Create an mcp.json file in your project root. Add the server configuration, enable agent mode, and your AI client will immediately access the tax tools.

Yes. The agent calls the MCP comparison tools to get live tax rates. It then writes your billing functions using those exact statutory numbers.

It works perfectly in project scope. You define the configuration in your local file, so only developers on your specific project get access to the tax tools.

The comparison logic checks if your payroll exceeds 28% of revenue. If it does, the tool applies the lower Simples Nacional bracket automatically.

The tools require your gross annual revenue, total payroll expenses, and service costs. You pass these variables to the agent to run the regime simulation.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript