Design

Image Stitcher

Combine multiple images into a single stitched image with customizable layout, spacing, and alignment

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-stitcher' \
  -F 'file=@/path/to/imageFiles.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/image-stitcher' \
  -F 'imageFiles=/path/to/file.ext' \
  -F 'layout=grid' \
  -F 'columns=0' \
  -F 'rows=0' \
  -F 'spacing=10' \
  -F 'backgroundColor=#ffffff' \
  -F 'imageAlignment=center' \
  -F 'outputFormat=png' \
  -F 'quality=90' \
  -F 'maxWidth=0' \
  -F 'maxHeight=0'

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-stitcher

Parameters

Name	Type	Required	Description
imageFiles	fileupload required	Yes	—
layout	select	Yes	—
columns	number	No	—
rows	number	No	—
spacing	number	No	—
backgroundColor	color	No	—
imageAlignment	select	Yes	—
outputFormat	select	Yes	—
quality	number	No	—
maxWidth	number	No	—
maxHeight	number	No	—

File-type parameters must be uploaded first via POST /upload/image-stitcher, then the returned filePath is passed to the corresponding file field.

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-stitcher": {
      "name": "image-stitcher",
      "description": "Combine multiple images into a single stitched image with customizable layout, spacing, and alignment",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=image-stitcher",
      "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-stitcher",
    "arguments": {
  "imageFiles": "https://example.com/file.ext",
  "layout": "grid",
  "columns": 0,
  "rows": 0,
  "spacing": 10,
  "backgroundColor": "#ffffff",
  "imageAlignment": "center",
  "outputFormat": "png",
  "quality": 90,
  "maxWidth": 0,
  "maxHeight": 0
}
  }
}

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]