Design

ECharts Theme Token Extractor

Extract design tokens — colors, numbers, font sizes and strings — from an ECharts theme JSON and export them straight into your design system. Paste a theme object (the kind registered via echarts.init(dom, themeName)) and the tool walks every leaf, tagging each color (with optional named/rgb → hex normalization), spacing number, font size and string, then emits clean CSS variables, a Tailwind theme.extend config, Style Dictionary tokens.json, or SCSS variables. Bridges the gap between an ECharts visualization theme and Figma/CSS/Tailwind design tokens without copying each value by hand.

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/echarts-theme-token-extractor' \
  -H 'Content-Type: application/json' \
  -d '{"themeJson":"{\n  \"color\": [\"#5470c6\", \"#91cc75\", \"#fac858\"],\n  \"backgroundColor\": \"rgb(255, 255, 255)\",\n  \"textStyle\": { \"fontSize\": 12, \"color\": \"#333333\" }\n}","format":"css","prefix":"chart","colorMode":"hex"}'

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/echarts-theme-token-extractor

Parameters

Name	Type	Required	Description
themeJson	textarea	Yes	—
format	select	No	—
prefix	text	No	—
colorMode	select	No	—

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-echarts-theme-token-extractor": {
      "name": "echarts-theme-token-extractor",
      "description": "Extract design tokens — colors, numbers, font sizes and strings — from an ECharts theme JSON and export them straight into your design system. Paste a theme object (the kind registered via echarts.init(dom, themeName)) and the tool walks every leaf, tagging each color (with optional named/rgb → hex normalization), spacing number, font size and string, then emits clean CSS variables, a Tailwind theme.extend config, Style Dictionary tokens.json, or SCSS variables. Bridges the gap between an ECharts visualization theme and Figma/CSS/Tailwind design tokens without copying each value by hand.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=echarts-theme-token-extractor",
      "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": "echarts-theme-token-extractor",
    "arguments": {
  "themeJson": "{\n  \"color\": [\"#5470c6\", \"#91cc75\", \"#fac858\"],\n  \"backgroundColor\": \"rgb(255, 255, 255)\",\n  \"textStyle\": { \"fontSize\": 12, \"color\": \"#333333\" }\n}",
  "format": "css",
  "prefix": "chart",
  "colorMode": "hex"
}
  }
}

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