How is this different from asking an AI to do math?

AI models often approximate square roots and averages, leading to errors. This MCP executes the math in a native JavaScript environment to ensure the results are mathematically exact.

Which AI clients can use this MCP?

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

What specific metrics does it calculate?

The capability calculates Mean Squared Error (MSE), Root Mean Square Error (RMSE), and Mean Absolute Error (MAE).

Do I need to host this myself?

No, Vinkius hosts and manages the MCP for you. You just connect your client and start using the capabilities.

Can I use this for comparing multiple models?

Yes, you can provide prediction arrays from different models to your agent and have it use the capability to compare their error metrics.

What is the difference between RMSE and MAE?

RMSE heavily penalizes large errors (because the errors are squared before averaging), while MAE treats all errors equally linearly.

Can it handle negative predictions?

Yes, the exact mathematical formulas handle all floating-point numbers including negatives.

Yes. All validation metrics are computed locally on the Vinkius Edge Runtime with zero external API calls, ensuring high privacy.

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Connect Rmse Mae Calculator 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. Stop letting your AI agent guess your model metrics.

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 · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Native V8.

01
Calculate regression metrics
This capability calculates exact MSE, RMSE, and MAE for your regression model validation. It processes numeric arrays to provide mathematically precise error metrics.

Real work

What teams actually run

Real Estate Pricing Validation

Compare predicted house prices against actual sales data to find the exact error margin.

Stock Market Prediction

Validate the accuracy of time-series regression models used for financial forecasting.

Model Benchmarking

Run the same test set through multiple models to see which one produces the lowest RMSE.

Outlier Identification

Use the relationship between RMSE and MAE to detect if specific predictions are wildly off.

Automate a task

Put Native V8 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

Native V8 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 Native V8 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

836ms average. Fast in production.

Native V8 is checked daily against the live service.

Daily averagePeak 1005ms

Oct 3Today

Fastest day: 659ms
Slowest day: 1005ms
14-day trend: Stable-2%

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 Native V8, so you can see the experience inside your AI.

It does not authenticate your account with Native V8. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Native V8 Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_7taOhFMQ4QeTOzapBajB7VxkIYnA7kpKNDVm5F0k/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 — Native V8 capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "rmse-mae-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_7taOhFMQ4QeTOzapBajB7VxkIYnA7kpKNDVm5F0k/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 Native V8 in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Native V8 owners hand off.

This MCP is built for professionals who need to validate predictive models without manual math checks.

01
Data Scientists
They hand off prediction arrays to the agent to get instant, accurate validation metrics.
02
Machine Learning Engineers
They use the capability to compare different model architectures like Random Forest vs Neural Networks.
03
Quantitative Analysts
They rely on exact error calculations for financial or stock prediction models.

FAQ

Questions Native V8 owners ask.

01
How is this different from asking an AI to do math?
AI models often approximate square roots and averages, leading to errors. This MCP executes the math in a native JavaScript environment to ensure the results are mathematically exact.
02
Which AI clients can use this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
03
What specific metrics does it calculate?
The capability calculates Mean Squared Error (MSE), Root Mean Square Error (RMSE), and Mean Absolute Error (MAE).
04
Do I need to host this myself?
No, Vinkius hosts and manages the MCP for you. You just connect your client and start using the capabilities.
05
Can I use this for comparing multiple models?
Yes, you can provide prediction arrays from different models to your agent and have it use the capability to compare their error metrics.
06
What is the difference between RMSE and MAE?
RMSE heavily penalizes large errors (because the errors are squared before averaging), while MAE treats all errors equally linearly.
07
Can it handle negative predictions?
Yes, the exact mathematical formulas handle all floating-point numbers including negatives.
08
Is this done local?
Yes. All validation metrics are computed locally on the Vinkius Edge Runtime with zero external API calls, ensuring high privacy.

Explore

More in Developer Tools

Connect Native V8 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

Calculate regression metrics

What teams actually run

Real Estate Pricing Validation

Stock Market Prediction

Model Benchmarking

Outlier Identification

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

Native V8 Connector

Claude Desktop

Data Scientists

Machine Learning Engineers

Quantitative Analysts

How is this different from asking an AI to do math?

Which AI clients can use this MCP?

What specific metrics does it calculate?

Do I need to host this myself?

Can I use this for comparing multiple models?

What is the difference between RMSE and MAE?

Can it handle negative predictions?

Is this done local?

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