Investment Comparator Connector for AI agents.
3 live capabilities
Calculate net returns on Brazilian fixed-income assets after regressive income tax.
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Why people use Investment Comparator
Investment Profitability Comparator for Brazilian Fixed-Income Analysis
This Connector replaces that friction. You just tell your AI client your investment amount and timeframe. It pulls the correct tax rates and runs the math across all your options instantly. You get a clear winner in seconds.
What Vinkius changes
You get accurate net returns without doing any manual tax math.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 5,900+ Connectors
- Real-world use case 01
Comparing CDB vs. Treasury Selic
An investor wants to know which is better for a 1-year hold.
- Real-world use case 02
Checking tax for a specific timeframe
A user wants to know the tax for a 200-day hold.
- Real-world use case 03
Calculating DI Fund profit
A manager needs to know the net profit for a 100% CDI multiplier over 800 days.
Complete set · 3capabilities
The complete Investment Comparator capability set.
These are the exact actions your AI can choose when you ask it to work with Investment Comparator.
01—03
3 capabilities in this set.
Part of 3 available through Investment Comparator.
- 01 Capability
Get tax rate by duration
This capability gets the specific income tax percentage for a given duration. It helps you know the exact cut the government takes before you plan your returns.
- 02 Capability
Calculate net profit
This capability returns a full breakdown of gross profit, tax amount, and net profit. It's the easiest way to see what actually hits your bank account.
- 03 Capability
Compare all instruments
This capability provides a side-by-side comparison of all supported investments. You can see how CDB, Treasury Selic, Savings, and DI Funds stack up against each other.
Set up in minutes
One URL. Then ask Investment Comparator to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Investment Comparator from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it Investment Comparator, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Investment Comparator for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the Investment Comparator URL.
- Step 03
Save and start
Save the connection and enable Investment Comparator in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"investment-profitability-comparator": {
"url": "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using Investment Comparator
Open Agent mode in chat and ask: "Using Investment Comparator, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"investment-profitability-comparator": {
"url": "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using Investment Comparator
Ask Copilot: "Using Investment Comparator, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"investment-profitability-comparator": {
"url": "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using Investment Comparator
Open Cascade and ask: "Using Investment Comparator, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"investment-profitability-comparator": {
"url": "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using Investment Comparator
Ask Cline: "Using Investment Comparator, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add investment-profitability-comparator --transport http "https://edge.vinkius.com/vk_preview_UwHKyps6ZSx3C1Z4arkaUaGbaQzMCiWCue5gO8Uc/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using Investment Comparator
Ask Claude: "Using Investment Comparator, show me...". 3 tools are ready
Where the request belongs
Work Investment Comparator can move forward.
This is for anyone managing Brazilian investments who needs to know the real bottom line. It's for people who are tired of guessing how much tax they'll owe and want to see the actual profit.
Financial Advisor
Quickly showing clients the actual net returns of different fixed-income options during a meeting.
Retail Investor
Figuring out if a high-yield CDB is actually better than Treasury Selic after the tax man takes his share.
Portfolio Manager
Running quick what-if scenarios for different investment horizons to optimize asset allocation.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
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Treasury Return Calculator
Calculate fair price, YTM, and inflation-adjusted returns for US Treasuries, UK Gilts, and German Bunds.
Bring your own AI
Change the model, client or framework. Keep Investment Comparator connected.
-
Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
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Void -
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Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about Investment Comparator.
The practical details behind the request, access and result.
Does Investment Profitability Comparator handle Brazilian taxes?
Yes, it specifically calculates the Brazilian regressive income tax schedule based on your investment duration to show you the net profit.
Can I use Investment Profitability Comparator to compare CDB and Selic?
Absolutely. You can see a side-by-side comparison of CDB, Treasury Selic, Savings, and DI Funds to see which one pays more after taxes.
Does Investment Profitability Comparator show me the gross profit?
Yes, it provides a full breakdown that includes the gross profit, the specific tax amount, and the final net profit you'll actually keep.
Is Investment Profitability Comparator good for DI Funds?
Yes, it handles DI Funds and can calculate net profits based on specific CDI multipliers and durations.
How accurate are the tax rates in Investment Profitability Comparator?
It uses the standard Brazilian regressive income tax schedule. You can also ask it to pull the specific rate for any number of days you choose.
Can I use Investment Profitability Comparator for my personal portfolio?
It's perfect for personal use. Just tell your AI client how much you want to invest and for how long, and it will do the math for you.
How does the tax calculation work?
The capability uses a regressive tax table where the percentage decreases as the investment duration increases.
Which instruments are supported?
Supported instruments include CDB, Treasury Selic, Savings (Poupança), and DI Funds.
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.
One connection away
Give your agent a direct line to Investment Comparator.
Connect Investment Comparator once. Keep it beside 5,900+ managed Connectors when the next task needs more.
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