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Media

Video to APNG

Convert video clips to APNG (Animated PNG) format with transparency support and better quality than GIF

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/video-to-apng' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"videoFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/video-to-apng' \
  -F 'videoFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'fps=15' \
  -F 'startTime=0' \
  -F 'duration=10' \
  -F 'width=0' \
  -F 'height=0' \
  -F 'quality=90' \
  -F 'optimize=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/video-to-apng

Parameters

NameTypeRequiredDescription
videoFilefileupload requiredYes—
fpsnumberNoAnimation frame rate (max 30fps recommended)
startTimenumberNoStart conversion from this time
durationnumberNoMaximum 30 seconds for APNG
widthnumberNoLeave empty for original (max 1920)
heightnumberNoLeave empty for original (max 1080)
qualitynumberNoAffects compression level
optimizecheckboxNoUse higher compression for smaller file
File-type parameters must be uploaded first via POST /upload/video-to-apng, 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-video-to-apng": {
      "name": "video-to-apng",
      "description": "Convert video clips to APNG (Animated PNG) format with transparency support and better quality than GIF",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=video-to-apng",
      "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": "video-to-apng",
    "arguments": {
  "videoFile": "https://example.com/file.ext",
  "fps": 15,
  "startTime": 0,
  "duration": 10,
  "width": 0,
  "height": 0,
  "quality": 90,
  "optimize": 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).
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]

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