Design

Color Opacity Adjuster

Adjust color opacity/alpha transparency with real-time preview and batch processing

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/color-opacity-adjuster' \
  -H 'Content-Type: application/json' \
  -d '{"baseColor":"#FF5733","opacityMode":"alpha","opacityValue":80,"backgroundColor":"#FFFFFF","outputFormat":"rgba","preserveOriginalHex":true,"batchColors":"#FF0000, #00FF00, #0000FF","includeOriginal":true,"showComparison":true}'

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/color-opacity-adjuster

Parameters

Name	Type	Required	Description
baseColor	color	Yes	—
opacityMode	select	No	—
opacityValue	range	No	—
backgroundColor	color	No	—
outputFormat	select	No	—
preserveOriginalHex

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-color-opacity-adjuster": {
      "name": "color-opacity-adjuster",
      "description": "Adjust color opacity/alpha transparency with real-time preview and batch processing",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=color-opacity-adjuster",
      "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": "color-opacity-adjuster",
    "arguments": {
  "baseColor": "#FF5733",
  "opacityMode": "alpha",
  "opacityValue": 80,
  "backgroundColor": "#FFFFFF",
  "outputFormat": "rgba",
  "preserveOriginalHex": true,
  "batchColors": "#FF0000, #00FF00, #0000FF",
  "includeOriginal": true,
  "showComparison": 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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