Media

SRT to ASS Converter

Convert SRT subtitle files to ASS/SSA format with customizable font styling

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/video-subtitle-srt-to-ass' \
  -F 'file=@/path/to/srtFile.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/video-subtitle-srt-to-ass' \
  -F 'srtFile=/path/to/file.ext' \
  -F 'fontSize=24' \
  -F 'fontName=Arial' \
  -F 'fontColor=#FFFFFF' \
  -F 'bottomAlignment=true' \
  -F 'marginBottom=20'

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-subtitle-srt-to-ass

Parameters

Name	Type	Required	Description
srtFile	fileupload required	Yes	—
fontSize	range	No	Font size for subtitles (8-72 pixels)
fontName	text	No	Font family name
fontColor	color	No	Font color in hex format
bottomAlignment	checkbox	No

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-subtitle-srt-to-ass": {
      "name": "video-subtitle-srt-to-ass",
      "description": "Convert SRT subtitle files to ASS/SSA format with customizable font styling",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=video-subtitle-srt-to-ass",
      "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-subtitle-srt-to-ass",
    "arguments": {
  "srtFile": "https://example.com/file.ext",
  "fontSize": 24,
  "fontName": "Arial",
  "fontColor": "#FFFFFF",
  "bottomAlignment": true,
  "marginBottom": 20
}
  }
}

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).

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