Kelly Criterion Sizing Connector for AI agents.
4 live capabilities
Calculate optimal wager sizes for risk-managed bankroll management.
Waiting for input…
Why people use Kelly Criterion Sizing
Kelly Criterion Sizing for Sports Betting Risk Management
This Connector changes that by putting the math in the driver's seat. Instead of manual calculation, you tell your AI client the odds and your win probability. It instantly returns the precise percentage you should wager. You get a disciplined, repeatable process that keeps your bankroll intact.
What Vinkius changes
You get a mathematically backed wager size in seconds.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Calculating a sports bet size
A sports bettor wants to know the bet size for a 55% win chance at -110 odds.
- Real-world use case 02
Conservative underdog betting
A trader wants to be conservative on a high-risk underdog.
- Real-world use case 03
Standardizing market odds
Someone is confused by +200 American odds.
Complete set · 4capabilities
The complete Kelly Criterion Sizing capability set.
These are the exact actions your AI can choose when you ask it to work with Kelly Criterion Sizing.
01—04
4 capabilities in this set.
Part of 4 available through Kelly Criterion Sizing.
- 01 Capability
Get net odds ratio
Translates American odds into the net profit-to-stake ratio. This keeps your math consistent across different betting platforms.
- 02 Capability
Validate betting parameters
Ensures all your inputs are mathematically sound before you run any Kelly calculations. It prevents errors caused by impossible odds or probabilities.
- 03 Capability
Calculate half kelly
Provides a safer, more conservative wagering fraction for long-term bankroll preservation. This is the standard for reducing variance.
- 04 Capability
Calculate pure kelly
Finds the maximum mathematically optimal percentage of your bankroll to wager. Use this for maximum growth when you have high confidence in your edge.
Set up in minutes
One URL. Then ask Kelly Criterion Sizing to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Kelly Criterion Sizing 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_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable Kelly Criterion Sizing for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing URL.
- Step 03
Save and start
Save the connection and enable Kelly Criterion Sizing in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"kelly-criterion-sizing": {
"url": "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing
Open Agent mode in chat and ask: "Using Kelly Criterion Sizing, help me...". 4 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"kelly-criterion-sizing": {
"url": "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing
Ask Copilot: "Using Kelly Criterion Sizing, help me...". 4 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"kelly-criterion-sizing": {
"url": "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing
Open Cascade and ask: "Using Kelly Criterion Sizing, help me...". 4 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"kelly-criterion-sizing": {
"url": "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing
Ask Cline: "Using Kelly Criterion Sizing, help me...". 4 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add kelly-criterion-sizing --transport http "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing
Ask Claude: "Using Kelly Criterion Sizing, show me...". 4 tools are ready
Where the request belongs
Work Kelly Criterion Sizing can move forward.
This is for the disciplined bettor or the risk-averse trader who wants to stop guessing and start using math to protect their bankroll. It's for anyone who treats capital allocation as a science rather than a hobby.
Sports Bettor
Analyzes match probabilities and gets exact wager sizes to avoid blowing the bankroll on high-confidence plays.
Crypto Trader
Calculates position sizes for high-volatility assets based on expected win rates and risk tolerance.
Poker Player
Manages table stakes and bankroll sizing based on edge calculations and variance management.
Build the capability set
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Bring your own AI
Change the model, client or framework. Keep Kelly Criterion Sizing connected.
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ChatGPT -
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Before you connect
Questions about Kelly Criterion Sizing.
The practical details behind the request, access and result.
What is Kelly Criterion Sizing MCP for?
It's a capability that helps you calculate the exact percentage of your bankroll you should wager based on your win probability and the odds. It removes the guesswork from bankroll management.
How do I use Kelly Criterion Sizing MCP for sports betting?
You tell your AI client the odds and your estimated win percentage. The Connector then calculates the best bet size for you using standard risk management formulas.
Can Kelly Criterion Sizing MCP help me avoid losing my bankroll?
Yes. By using the Half Kelly calculation, you can take a more conservative approach that prioritizes long-term capital preservation over maximum immediate growth.
What are American odds in Kelly Criterion Sizing MCP?
The capability can take standard American odds and convert them into a net profit ratio, making it easier to run your math consistently across different betting platforms.
Is Kelly Criterion Sizing MCP just for sports?
While popular for sports betting, it's useful for any scenario involving capital allocation, such as poker, crypto trading, or any other high-risk financial activity.
Does Kelly Criterion Sizing MCP tell me who will win?
No, it doesn't predict winners. You must provide the win probability yourself. The Connector only handles the math of how much to wager once you have that information.
What is the difference between Pure Kelly and Half Kelly?
Pure Kelly calculates the maximum mathematically optimal percentage of your bankroll to wager. Half Kelly divides that result by two, providing a safer buffer against volatility and estimation errors.
How do I use American odds with this capability?
You can input standard American format odds, such as -110 for favorites or +150 for underdogs. The get_net_odds_ratio capability will handle the conversion to a profit ratio automatically.
Can I verify if my win probability is valid?
Yes, you can use the validate_betting_parameters capability to check if your win probability (between 0 and 1) and American odds are mathematically valid for calculation.
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