Matrix Chart Generator

Generate correlation and comparison matrix charts with color intensity mapping and grid layout

html· HTML resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/matrix-chart-generator' \
  -H 'Content-Type: application/json' \
  -d '{"matrixData":"JSON format:\n[\n  [1, 0.8, 0.3, 0.5],\n  [0.8, 1, 0.6, 0.4],\n  [0.3, 0.6, 1, 0.7],\n  [0.5, 0.4, 0.7, 1]\n]\n\nor CSV format:\n1,0.8,0.3,0.5\n0.8,1,0.6,0.4\n0.3,0.6,1,0.7\n0.5,0.4,0.7,1","chartTitle":"Enter chart title...","colorScheme":"blue","backgroundColor":"#ffffff","cellSize":"50","fontSize":"12","minValue":0,"maxValue":0,"chartWidth":"800","chartHeight":"600","showValues":true,"showLabels":false,"showGrid":true,"roundValues":false}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/matrix-chart-generator

Parameters

Name	Type	Required	Description
matrixData	textarea	Yes	Matrix data as 2D array. Supports JSON array or CSV format with comma-separated values
chartTitle	text	No	Title that will be displayed above the matrix chart
colorScheme	select	No	—
backgroundColor	color	No	Background color for the chart
cellSize	number	No	Size of each cell in pixels
fontSize	number	No	Font size for cell values
minValue	number	No	Minimum value for color scale (leave empty for auto)
maxValue	number	No	Maximum value for color scale (leave empty for auto)
chartWidth	number	No	Width of the chart in pixels
chartHeight	number	No	Height of the chart in pixels
showValues	checkbox	No	Display numeric values inside cells
showLabels	checkbox	No	Display row and column labels (if available)
showGrid	checkbox	No	Display grid lines between cells
roundValues	checkbox	No	Round values to whole numbers for display

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-matrix-chart-generator": {
      "name": "matrix-chart-generator",
      "description": "Generate correlation and comparison matrix charts with color intensity mapping and grid layout",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=matrix-chart-generator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "matrix-chart-generator",
    "arguments": {
  "matrixData": "JSON format:\n[\n  [1, 0.8, 0.3, 0.5],\n  [0.8, 1, 0.6, 0.4],\n  [0.3, 0.6, 1, 0.7],\n  [0.5, 0.4, 0.7, 1]\n]\n\nor CSV format:\n1,0.8,0.3,0.5\n0.8,1,0.6,0.4\n0.3,0.6,1,0.7\n0.5,0.4,0.7,1",
  "chartTitle": "Enter chart title...",
  "colorScheme": "blue",
  "backgroundColor": "#ffffff",
  "cellSize": "50",
  "fontSize": "12",
  "minValue": 0,
  "maxValue": 0,
  "chartWidth": "800",
  "chartHeight": "600",
  "showValues": true,
  "showLabels": false,
  "showGrid": true,
  "roundValues": false
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]