How do I use this MCP with Claude?

You connect your Claude client to Vinkius once. After that, the capabilities are immediately available for your agent to use during your chats.

What is the difference between pure and half Kelly?

Pure Kelly calculates the maximum mathematically optimal wager. Half Kelly cuts that amount in half to provide a more conservative, lower-volatility stake.

Can I use American odds directly?

Yes, the MCP includes capabilities to convert American odds into the profit ratios needed for the calculations.

Does this MCP handle the math for me?

Yes, the capabilities perform all the Kelly Criterion arithmetic so your AI client doesn't have to guess the formula.

What if my inputs are wrong?

The validate_betting_parameters capability checks your inputs to ensure they are mathematically sound before any sizing happens.

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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Connect Kelly Criterion Sizing to ChatGPT, Claude and Gemini

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. Calculate mathematically optimal wagers for your bankroll.

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.

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.

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 · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through Kelly Criterion Sizing.

01
Validate betting parameters
This capability checks that your win probabilities and odds are mathematically sound. It prevents errors before you run any sizing calculations.
02
Calculate half kelly
This capability provides a conservative wagering fraction. It's designed for users who want to reduce volatility by cutting the pure Kelly suggestion in half.
03
Calculate pure kelly
This capability finds the maximum mathematically optimal percentage of your bankroll to wager. It uses the full Kelly formula based on your inputs.
04
Get net odds ratio
This capability converts American odds into the net profit-to-stake ratio. It's a necessary step for preparing data for Kelly formulas.

Real work

What teams actually run

Aggressive Growth

Use the pure Kelly capability when you want to maximize the growth rate of your bankroll based on a specific edge.

Volatility Reduction

Apply the half-Kelly capability to keep your bankroll swings within a more manageable range.

Odds Translation

Quickly turn American odds into net profit ratios to prepare for complex math.

Data Integrity

Run validation checks to ensure your win probability and odds inputs are logically consistent.

One connector, every AI

Kelly Criterion Sizing 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.

Building your own app? The connector is yours to use.

You don't need a client to put Kelly Criterion Sizing 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

709ms average. Fast in production.

Kelly Criterion Sizing is checked daily against the live service.

Daily averagePeak 893ms

Oct 3Today

Fastest day: 531ms
Slowest day: 893ms
14-day trend: Improving-15%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 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 Kelly Criterion Sizing, so you can see the experience inside your AI.

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

Kelly Criterion Sizing Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Kelly Criterion Sizing capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "kelly-criterion-sizing-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_tFv1Z2KSagI0M6xJf7MqE0OtDAkLEt6fMz2miNe2/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 Kelly Criterion Sizing in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Kelly Criterion Sizing owners hand off.

This MCP is built for individuals who apply mathematical models to capital allocation and risk management.

01
Sports Bettors
They hand off win probabilities and American odds to the AI to determine precise stake sizes.
02
Risk Managers
They use the capability to model conservative versus aggressive capital deployment strategies.
03
Quantitative Analysts
They use the conversion and validation capabilities to prep data for larger financial models.

FAQ

Questions Kelly Criterion Sizing owners ask.

01
How do I use this MCP with Claude?
You connect your Claude client to Vinkius once. After that, the capabilities are immediately available for your agent to use during your chats.
02
What is the difference between pure and half Kelly?
Pure Kelly calculates the maximum mathematically optimal wager. Half Kelly cuts that amount in half to provide a more conservative, lower-volatility stake.
03
Can I use American odds directly?
Yes, the MCP includes capabilities to convert American odds into the profit ratios needed for the calculations.
04
Does this MCP handle the math for me?
Yes, the capabilities perform all the Kelly Criterion arithmetic so your AI client doesn't have to guess the formula.
05
What if my inputs are wrong?
The validate_betting_parameters capability checks your inputs to ensure they are mathematically sound before any sizing happens.
06
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.
07
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.
08
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.

Explore

More in Finance

Connect Kelly Criterion Sizing to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Validate betting parameters

Calculate half kelly

Calculate pure kelly

Get net odds ratio

What teams actually run

Aggressive Growth

Volatility Reduction

Odds Translation

Data Integrity

Building your own app? The connector is yours to use.

Kelly Criterion Sizing Connector

Claude Desktop

Sports Bettors

Risk Managers

Quantitative Analysts

How do I use this MCP with Claude?

What is the difference between pure and half Kelly?

Can I use American odds directly?

Does this MCP handle the math for me?

What if my inputs are wrong?

What is the difference between Pure Kelly and Half Kelly?

How do I use American odds with this capability?

Can I verify if my win probability is valid?

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