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Data Visualization

Radar Chart Generator

Generate customizable radar charts (spider charts) from data, perfect for multi-dimensional comparison and analysis

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/radar-chart-generator' \
  -H 'Content-Type: application/json' \
  -d '{"chartData":"JSON format:\n{\n  "categories": ["Speed", "Power", "Defense", "Skill", "Stamina"],\n  "series": [\n    {"name": "Player A", "data": [85, 70, 90, 80, 75]},\n    {"name": "Player B", "data": [75, 85, 70, 90, 80]}\n  ]\n}\n\nor text format:\nSpeed,Power,Defense,Skill,Stamina\nPlayer A:85,70,90,80,75\nPlayer B:75,85,70,90,80","chartTitle":"Enter chart title...","seriesColors":"#3b82f6,#ef4444,#10b981","fillOpacity":"0.3","lineWidth":"2","chartHeight":"500","startAngle":"0","polygonSides":0,"maxValue":0,"minValue":0,"backgroundColor":"#ffffff","gridColor":"#e0e0e0","showGrid":true,"showPoints":true,"showValues":true,"showLegend":true}'

© 2026 Elysia Tools. Developer documentation.

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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/radar-chart-generator

Parameters

NameTypeRequiredDescription
chartDatatextareaYesData for the radar chart. Supports JSON object or text format with categories and multiple data series
chartTitletextNoTitle that will be displayed above the chart
seriesColorstextNoColors for multiple series (comma-separated hex colors). Leave empty for default colors.
fillOpacitynumberNoOpacity of the radar area fill (0.0 to 1.0)
lineWidthnumberNoWidth of the radar area border lines in pixels
chartHeightnumberNoSize of the square chart in pixels
startAnglenumberNoStarting angle in degrees (0 = top, 90 = right)
polygonSidesnumberNoNumber of sides for the radar polygon (3-12, leave empty for auto based on categories)
maxValuenumberNoMaximum value for the radar scale (leave empty for auto-scale)
minValuenumberNoMinimum value for the radar scale
backgroundColorcolorNoBackground color for the chart container
gridColorcolorNoColor for the grid lines and circles
showGridcheckboxNoDisplay grid circles and radial lines
showPointscheckboxNoDisplay data points on the radar vertices
showValuescheckboxNoDisplay the actual values on data points
showLegendcheckboxNoDisplay a legend below the chart

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-radar-chart-generator": {
      "name": "radar-chart-generator",
      "description": "Generate customizable radar charts (spider charts) from data, perfect for multi-dimensional comparison and analysis",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=radar-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": "radar-chart-generator",
    "arguments": {
  "chartData": "JSON format:\n{\n  &quot;categories&quot;: [&quot;Speed&quot;, &quot;Power&quot;, &quot;Defense&quot;, &quot;Skill&quot;, &quot;Stamina&quot;],\n  &quot;series&quot;: [\n    {&quot;name&quot;: &quot;Player A&quot;, &quot;data&quot;: [85, 70, 90, 80, 75]},\n    {&quot;name&quot;: &quot;Player B&quot;, &quot;data&quot;: [75, 85, 70, 90, 80]}\n  ]\n}\n\nor text format:\nSpeed,Power,Defense,Skill,Stamina\nPlayer A:85,70,90,80,75\nPlayer B:75,85,70,90,80",
  "chartTitle": "Enter chart title...",
  "seriesColors": "#3b82f6,#ef4444,#10b981",
  "fillOpacity": "0.3",
  "lineWidth": "2",
  "chartHeight": "500",
  "startAngle": "0",
  "polygonSides": 0,
  "maxValue": 0,
  "minValue": 0,
  "backgroundColor": "#ffffff",
  "gridColor": "#e0e0e0",
  "showGrid": true,
  "showPoints": true,
  "showValues": true,
  "showLegend": 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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