How to Use the Curve Fitting Engine MCP in Claude

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Connect Curve Fitting Engine MCP to Claude Desktop

Create your Vinkius account to connect Curve Fitting Engine to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Curve Fitting Engine with Claude Desktop

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Fit Curves to Data Instantly

Feed Claude a set of data points. The Curve Fitting Engine runs `calculate_regression` right on your machine, giving you the exact polynomial equation and R-squared value without any network lag. This is for quick analysis without leaving your chat. Paste in some performance metrics or experimental results, and ask Claude to find the trend line. It's all local, so your data never leaves your computer.

Local Analysis with the Claude Desktop App

The Claude Desktop app lets this MCP server run as a local process. That means you can point it at CSVs or log files on your hard drive. Your agent reads the data, runs the `calculate_regression` tool, and plots the results before anything hits the internet. When you're on the go, you can connect to a hosted version through claude.ai. You trade local file access for the ability to run analysis from any browser. It's the same tool, just a different connection.

Visualize Your Models

Don't just get a wall of text. After the engine calculates the model, ask Claude to plot the original data points and the new curve on a graph. The server provides the math, Claude provides the visual. This makes it easy to spot-check the fit. You can see right away if a 2nd or 3rd-degree polynomial is a better match. Just tweak your request and re-run `calculate_regression` until the visual looks right.

Setup guide

Set up Curve Fitting Engine MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Curve Fitting Engine MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Curve Fitting Engine MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under curve-fitting-engine-mcp.

json

{
  "mcpServers": {
    "curve-fitting-engine-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about Curve Fitting Engine MCP in Claude Desktop

First, install the server from the Extensions menu. Then, just tell Claude the path to your local CSV file and ask it to perform a regression. It'll use the `calculate_regression` tool to get the math done.

It handles Linear and Polynomial regressions. You can ask for a simple line fit or specify the degree, like 'find a 3rd-degree polynomial fit'. It returns the coefficients and the R-squared score every time.

Yes. For the web version at claude.ai, you can add any public MCP server URL as a custom connector on any plan. For the desktop app, local tool execution is a standard feature.

This tool processes the data you provide in your prompt. It's made for quick analysis on scatter plot data that fits in your agent's context window, not for massive big-data jobs. Think hundreds or thousands of points, not millions.

When you use the Claude Desktop app, the server runs locally on your machine. Your scatter plot data is processed in a subprocess and never sent over the network. It's as private as any other app on your computer.

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