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Connect Chi Square Test Engine 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. Get exact statistical results without LLM math hallucinations.

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 · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through jstat.

  1. 01

    Calculate chi square

    This capability performs exact, deterministic Chi-Square tests of independence on categorical contingency tables. It ensures your statistical results are mathematically accurate without relying on LLM reasoning.

Real work

What teams actually run

01

Survey Analysis

Determine if voting preferences or opinions are linked to specific education levels or age groups.

02

Customer Behavior

Check if the frequency of complaints is independent of the product category being purchased.

03

A/B Testing Validation

Verify if conversion rates across different user segments show a statistically significant difference.

04

Market Segmentation

Test if subscription tier choices are related to user gender or geographic location.

Automate a task

Put jstat 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

jstat 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 jstat 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

775ms average. Fast in production.

jstat is checked daily against the live service.

Daily averagePeak 941ms
Oct 3Today
Fastest day
602ms
Slowest day
941ms
14-day trend
Stable0%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 jstat, so you can see the experience inside your AI.

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

jstat Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_3a81o44g9lK8eLsDLspiymfXnhfQOUzKsOVzwpSJ/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 — jstat capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "chi-square-test-engine-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_3a81o44g9lK8eLsDLspiymfXnhfQOUzKsOVzwpSJ/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 jstat in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work jstat owners hand off.

This MCP is built for professionals who need to move from raw categorical data to statistical certainty without manual calculation.

  • 01

    Data Scientists

    They hand off contingency tables to the agent to get instant, reliable p-values.

  • 02

    Market Researchers

    They use it to validate survey results and determine if demographic segments behave differently.

  • 03

    Business Analysts

    They check if customer behaviors are tied to specific product categories or regions.

FAQ

Questions jstat owners ask.

  • 01

    How does this prevent AI math errors?

    Instead of asking the AI to do the arithmetic, the agent sends the data to this MCP, which uses the jstat library to perform deterministic calculations on your CPU.

  • 02

    What kind of data can I test?

    You can test any categorical data organized into contingency tables, including 2x2 or larger matrices.

  • 03

    Is my data sent to a third party for calculation?

    No, the calculations are performed locally on your CPU, which helps keep your survey and business data private.

  • 04

    Which AI clients can use this MCP?

    You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 05

    What specific statistics will I get?

    The capability provides the chi² statistic, degrees of freedom, and the p-value.

  • 06

    What is a contingency table?

    It's a matrix showing the frequency distribution of two categorical variables (e.g., rows = Gender, columns = Subscription Tier). The AI will automatically convert your raw data into this format.

  • 07

    Does it handle expected frequencies below 5?

    The engine computes the result regardless, but the AI is instructed to warn you when expected frequencies are low, as the chi² approximation becomes less reliable in those cases.

  • 08

    Can it test more than two variables at once?

    This engine performs a single pairwise independence test per execution. For multi-variable analysis, the AI can chain multiple calls to test different variable pairs sequentially.

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