How to Use the Presumed Profit Tax Calculator MCP in Cursor

Inject real Brazilian tax calculations directly into your code with Cursor's AI agent.

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Connect Presumed Profit Tax Calculator MCP to Cursor

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

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Setup Presumed Profit Tax Calculator with Cursor

Ask AI about this MCP

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Claude

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Gemini

Grok

Calculate Taxable Base in Your Editor

This MCP determines the taxable base for Brazil's Presumed Profit system. Tell your Cursor agent the gross revenue and activity, and it uses the `get_taxable_base` tool to get the right number. No more hard-coding tax logic. It works with the standard 32% service and 8% commerce margins. Your agent gets the result and can use it to populate variables or generate functions right in your active file.

Generate Code with Live Tax Breakdowns

Go beyond the base calculation. Ask your agent to figure out the Corporate Income Tax with the `calculate_cit_breakdown` tool, which correctly handles the 15% rate and 10% surtax. You can also get the Social Contribution amount with `calculate_scll_liability`. Cursor can then write code that uses these live results, which is perfect for building financial dashboards or accounting scripts.

Build Reports with this MCP Server

Need to generate a complete tax statement inside your app? Have your agent call the `generate_tax_summary_report` tool. It returns a structured object with all tax components. This is way better than using mock data. The agent gets a real tax summary and can generate the code to format it for a PDF, a UI component, or an API response.

Setup guide

Set up Presumed Profit Tax Calculator 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 Presumed Profit Tax Calculator 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 Presumed Profit Tax Calculator transactions." If the MCP tools are loaded correctly, Cursor will call the Presumed Profit Tax Calculator tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/mcp.json

{
  "mcpServers": {
    "presumed-profit-tax-calculator-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 Presumed Profit Tax Calculator. 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.

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Common questions about Presumed Profit Tax Calculator MCP in Cursor

After adding this MCP to your mcp.json file, switch to Agent mode. You can then prompt the agent like, '@agent use the tax calculator for a commercial business with 50k revenue and write a function with the result.'

Absolutely. The tools provide structured data perfect for backend development. Your agent can call this MCP and use the responses to write Go, Python, or TypeScript functions that perform real tax calculations.

Not right now. The calculator uses the general presumptive margins for commerce and services. It's designed for quick, standard calculations while you code.

It's faster and less error-prone. This MCP Server is maintained and updated. Instead of writing and debugging tax logic, you just let your agent call the tool and inject the correct result.

Your inputs, like gross revenue, are processed by the MCP and never logged or saved. The connection between Cursor and the Vinkius-hosted MCP is secured with TLS, ensuring your data is protected from end to end.

Use it with your favorite AI tools

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

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