Design

Image Overlay Blend

Apply overlay blend mode between two images to enhance contrast and create dramatic effects

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

# 1) Upload each file first → returns { filePath }
curl -X POST 'https://api.elysiatools.com/upload/image-overlay' \
  -F 'file=@/path/to/imageFile1.ext'
curl -X POST 'https://api.elysiatools.com/upload/image-overlay' \
  -F 'file=@/path/to/imageFile2.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/image-overlay' \
  -F 'imageFile1=/path/to/file.ext' \
  -F 'imageFile2=/path/to/file.ext' \
  -F 'opacity=1' \
  -F 'format=png' \
  -F 'quality=95'

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/image-overlay

Parameters

Name	Type	Required	Description
imageFile1	fileupload required	Yes	Base image that will be overlayed with the second image
imageFile2	fileupload required	Yes	Overlay image to blend with the base image
opacity	range	No	Opacity of the overlay image (0.0 to 1.0)
format	select	No	Output format for the result image (PNG recommended for transparency)

Response format

File result

JSON

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

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-image-overlay": {
      "name": "image-overlay",
      "description": "Apply overlay blend mode between two images to enhance contrast and create dramatic effects",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=image-overlay",
      "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": "image-overlay",
    "arguments": {
  "imageFile1": "https://example.com/file.ext",
  "imageFile2": "https://example.com/file.ext",
  "opacity": 1,
  "format": "png",
  "quality": 95
}
  }
}

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).

File parameters accept a public file URL only (https://…). Local paths, data: URIs, and Base64 strings are not supported.

Questions or issues? Contact [email protected]