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Data Visualization

Polar Area Chart Generator

Generate interactive polar area charts to visualize data in circular format, perfect for comparing categories with cyclical patterns or radial distributions

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/polar-area-chart' \
  -H 'Content-Type: application/json' \
  -d '{"chartData":"JSON format:\n[{"label": "Category A", "value": 25},\n{"label": "Category B", "value": 40},\n{"label": "Category C", "value": 30},\n{"label": "Category D", "value": 35}]","chartTitle":"Enter chart title...","colorScheme":"default","customColors":"["#FF6B6B", "#4ECDC4", "#45B7D1", "#FFA07A"]","valueFormat":"number","chartSize":"400","startAngle":"0","innerRadius":"0","backgroundColor":"#ffffff","showValues":true,"showLabels":true,"showGrid":true,"showAnimation":true,"showPercentage":false,"enableTooltip":true}'

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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/polar-area-chart

Parameters

NameTypeRequiredDescription
chartDatatextareaYesData for the polar area chart in JSON format with label and value fields
chartTitletextNoTitle that will be displayed above the chart
colorSchemeselectNo—
customColorstextareaNoJSON array of hex colors (requires Custom Colors selection)
valueFormatselectNo—
chartSizenumberNoSize of the chart in pixels (min: 300, max: 600)
startAnglenumberNoStarting angle in degrees (0-360)
innerRadiusnumberNoInner radius for donut chart effect (0-80)
backgroundColorcolorNoBackground color for the chart container
showValuescheckboxNoDisplay values inside the chart areas
showLabelscheckboxNoDisplay category labels around the chart
showGridcheckboxNoDisplay radial grid lines and circles
showAnimationcheckboxNoAnimate chart areas when loading
showPercentagecheckboxNoShow percentages instead of values
enableTooltipcheckboxNoShow detailed information on hover

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-polar-area-chart": {
      "name": "polar-area-chart",
      "description": "Generate interactive polar area charts to visualize data in circular format, perfect for comparing categories with cyclical patterns or radial distributions",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=polar-area-chart",
      "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": "polar-area-chart",
    "arguments": {
  "chartData": "JSON format:\n[{&quot;label&quot;: &quot;Category A&quot;, &quot;value&quot;: 25},\n{&quot;label&quot;: &quot;Category B&quot;, &quot;value&quot;: 40},\n{&quot;label&quot;: &quot;Category C&quot;, &quot;value&quot;: 30},\n{&quot;label&quot;: &quot;Category D&quot;, &quot;value&quot;: 35}]",
  "chartTitle": "Enter chart title...",
  "colorScheme": "default",
  "customColors": "[&quot;#FF6B6B&quot;, &quot;#4ECDC4&quot;, &quot;#45B7D1&quot;, &quot;#FFA07A&quot;]",
  "valueFormat": "number",
  "chartSize": "400",
  "startAngle": "0",
  "innerRadius": "0",
  "backgroundColor": "#ffffff",
  "showValues": true,
  "showLabels": true,
  "showGrid": true,
  "showAnimation": true,
  "showPercentage": false,
  "enableTooltip": true
}
  }
}
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]

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