Vinkius
Investment Profitability Comparator

Investment Profitability Comparator MCP for AI. See your true net return after taxes, instantly.

Claude Claude
ChatGPT ChatGPT
Cursor Cursor
Gemini Gemini
Windsurf Windsurf
VS Code VS Code
JetBrains JetBrains
Vercel Vercel
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Works with every AI agent you already use

…and any MCP-compatible client

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Connect to your AI in seconds.

Investment Profitability Comparator compares the final, after-tax returns of common fixed-income investments like CDB, Treasury Selic, Savings, and DI Funds.

It automatically applies complex Brazilian regressive income tax rules based on how long you hold your money, giving you a clear side-by-side view of which instrument yields the best net profit.

What your AI can do

Get tax rate by duration

Determines the specific income tax percentage that applies based on how long an investment is held.

Calculate net profit

Calculates and returns a breakdown showing the total profit, the amount of tax paid, and the final net profit for any set investment.

Compare all instruments

Provides an immediate side-by-side comparison of all available fixed-income types using your specified parameters.

Compare multiple funds

Get an immediate side-by-side view of CDB, Treasury Selic, Savings, and DI Funds' potential returns.

Calculate net profit breakdown

Determine the gross profit, the tax amount withheld, and the final cash you walk away with for a specific investment setup.

Check current tax rates

Find the exact income tax percentage applied to an investment based on its holding duration.

Included with Plan

Waiting for input…

AI Agent

Investment Profitability Comparator: 3 Tools Available

Use these tools to calculate precise net profits and compare various fixed-income options by factoring in holding duration tax rates.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Investment Profitability Comparator on Vinkius

Get Tax Rate By Duration

Determines the specific income tax percentage that applies based on how long an investment is held.

Calculate Net Profit

Calculates and returns a breakdown showing the total profit, the amount of tax paid...

Compare All Instruments

Provides an immediate side-by-side comparison of all available fixed-income types...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Claude AI

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

3

Start a conversation

Open a new chat. The Investment Profitability Comparator integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

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Make Your AI Do More

Start with Investment Profitability Comparator, then connect any of our 5,100+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,100+ others, all in one place
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  • Works with Claude, ChatGPT, Cursor, and more
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Investment Profitability Comparator MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Investment 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.

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Works with Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 3 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

The hassle of comparing investment options used to be a headache.

Today, figuring out the best place to put your money means opening multiple browser tabs. You copy rates from one site into a spreadsheet, then cross-reference tax brackets on another government page. If you change the holding period by just a few weeks, you have to recalculate everything and hope you didn't miss which specific instrument uses which tax rule.

With this MCP, all that manual work vanishes. You tell your agent what you want to invest, and it handles every step: finding the right tax rate first, then comparing all relevant options side-by-side, giving you one definitive answer.

The Investment Profitability Comparator gives you net results.

You don't have to manually calculate the tax rate by calling `get_tax_rate_by_duration`, and then plug that number into a separate profit calculator. The MCP handles this sequence automatically, ensuring accuracy every time.

The result is immediate clarity. You instantly see which option—be it DI Funds or Treasury Selic—actually pays you the most cash after all taxes are accounted for.

What your AI can actually do with this

Figuring out which investment is actually better can be a nightmare. You run numbers on one type of bond, then you have to manually check the tax rules for another, and if you forget the holding period, your whole calculation is wrong. This MCP solves that. It provides an analytical engine designed to compare the true net profitability across multiple fixed-income types.

Instead of juggling spreadsheets and tax code articles, your agent handles the complexity. You just input the investment details—the principal amount, the duration, and the CDI rate. The system first determines the precise income tax percentage you'll face based on your holding time using the get_tax_rate_by_duration tool. Then it calculates the full profit breakdown for all supported instruments, providing a clean net result after taxes.

This entire process is exposed through Vinkius, making advanced financial analysis accessible to anyone who needs clear answers, not just raw data points.

Built · Hosted · Managed by Vinkius Investment Profitability Comparator - Net Return Analysis MCP
Server ID 019eec91-fab8-70f1-ba88-d33ab69ce7fc
Vinkius Inspector
Compliance Grade A+
Score 100/100
Vinkius Inspector Badge — Score 100/100

Questions you might have

How does the `compare_all_instruments` tool work? +

The MCP runs a full comparison of CDB, Treasury Selic, Savings, and DI Funds using your input parameters. It provides one single view showing the expected net profit for every supported type.

What does `get_tax_rate_by_duration` tell me? +

This tool gives you the exact income tax percentage applied to your investment based solely on how many days it is held. You need this rate before calculating the final profit.

Do I still need `calculate_net_profit` if I run a comparison? +

While compare_all_instruments provides the overview, running calculate_net_profit allows you to deep-dive into just one specific investment setup, giving you the detailed breakdown of profit and tax amount.

Does this MCP handle all types of bonds? +

No. This tool is specialized for fixed-income instruments like CDB, Treasury Selic, Savings, and DI Funds. For variable assets, you'll need a different kind of analysis.

What happens if I use `get_tax_rate_by_duration` with an invalid or zero duration? +

The tool returns a specific error message explaining the required input format. It prevents calculation failures by forcing you to specify a valid holding period in days for accurate tax assessment.

Can I use `compare_all_instruments` to compare investments denominated in currencies other than BRL? +

No. This MCP is designed exclusively for fixed-income instruments measured and compared using the Brazilian Real (BRL). Calculations are limited to local currency data.

Does `calculate_net_profit` require me to first run `get_tax_rate_by_duration`? +

No, the tool accepts duration directly in its parameters. However, using a tax rate derived from this MCP ensures consistency across all your financial calculations.

Does `compare_all_instruments` guarantee that all listed instruments are comparable? +

Yes. The MCP is built specifically to compare CDB, Treasury Selic, Savings, and DI Funds side-by-side, ensuring standardized metrics for net returns after tax.

Built & Managed by Vinkius 30s setup 3 tools

We've already built the connector for Investment Profitability Comparator. Just plug in your AI agents and start using Vinkius.

No hosting. No infrastructure. No complex setup.
All 3 tools are live and waiting. You're up and running in seconds.

Vinkius runs on Claude Claude
Vinkius runs on ChatGPT ChatGPT
Vinkius runs on Cursor Cursor
Vinkius runs on Gemini Gemini
Vinkius runs on Windsurf Windsurf
Vinkius runs on VS Code VS Code
Vinkius runs on JetBrains JetBrains
Vinkius runs on Vercel Vercel
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