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Connect Investment Profitability Comparator to your AI

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. Compare net returns across fixed-income assets instantly.

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 · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Investment Comparator.

  1. 01

    Calculate net profit

    This capability provides a full profitability breakdown. It calculates gross profit, the specific tax amount, and the final net profit for your chosen investment setup.

  2. 02

    Get tax rate by duration

    This capability retrieves the exact income tax percentage required for a specific investment duration.

  3. 03

    Compare all instruments

    This capability generates a side-by-side comparison of all supported investment types to show you which one wins.

Real work

What teams actually run

01

Comparing Savings to CDB

You can check if the higher gross yield of a CDB actually beats the tax-free nature of Savings after taxes are applied.

02

Duration-Based Planning

Determine how much tax you will pay if you hold an investment for 180 days versus 720 days.

03

Portfolio Optimization

Run a comparison of all supported instruments to find the best net return for a specific CDI rate.

04

Tax Impact Analysis

Calculate exactly how much of your profit will be lost to income tax for a specific investment amount.

Automate a task

Put Investment 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

Investment 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 Investment 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

706ms average. Fast in production.

Investment Comparator is checked daily against the live service.

Daily averagePeak 906ms
Oct 3Today
Fastest day
564ms
Slowest day
906ms
14-day trend
Slowing+10%

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 Investment Comparator, so you can see the experience inside your AI.

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

Investment Comparator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/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 — Investment Comparator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "investment-profitability-comparator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/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 Investment Comparator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Investment Comparator owners hand off.

This MCP is built for individuals and professionals managing fixed-income portfolios in Brazil.

  • 01

    Personal Investors

    They use the AI to decide between Savings and higher-yield options like CDBs.

  • 02

    Financial Analysts

    They hand off the heavy lifting of tax calculations to the agent to speed up reporting.

  • 03

    Wealth Managers

    They use the comparison capabilities to justify specific asset allocations to clients.

FAQ

Questions Investment Comparator owners ask.

  • 01

    Which investments can I compare?

    You can compare CDB, Treasury Selic, Savings, and DI Funds.

  • 02

    Does this account for Brazilian taxes?

    Yes, it applies the regressive income tax schedule based on the duration of your investment.

  • 03

    How do I use this with my AI client?

    You connect once through Vinkius, and then any MCP-compatible client like Claude or Cursor can use the capabilities directly.

  • 04

    Can I see the tax amount separately?

    Yes, the calculate_net_profit capability provides a specific breakdown of the tax amount alongside gross and net profits.

  • 05

    Is the tax rate fixed?

    No, the tax rate changes depending on how long you hold the investment, which the MCP calculates automatically.

  • 06

    How does the tax calculation work?

    The capability uses a regressive tax table where the percentage decreases as the investment duration increases.

  • 07

    Which instruments are supported?

    Supported instruments include CDB, Treasury Selic, Savings (Poupança), and DI Funds.

  • 08

    Can I calculate profit for a specific amount?

    Yes, use the calculate_net_profit capability by providing your principal amount, days held, and CDI rate.

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