Ass To Srt API

POST https://api.findutils.com/api/tools/ass-to-srt/execute

Flatten an Advanced SubStation Alpha (.ass) or SubStation Alpha (.ssa) subtitle script to plain SubRip (.srt). Reads the Dialogue lines of the [Events] section using the Format line for column order, converts H:MM:SS.cc centisecond timestamps to HH:MM:SS,mmm, strips every {\...} override block, turns \N into a line break, sorts cues by start time and renumbers them from 1. Styles, fonts, colours, positioning and drawing commands are discarded on purpose, because SubRip cannot carry them. Comment lines are ignored.

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Request body

application/json

input

string required

The .ass or .ssa file contents.
keep_empty

boolean optional

Keep cues whose text is empty once override tags are removed. Default: false, which drops them. Default false.

Example arguments

Verified

{
  "input": "[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\nDialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,{\\an8}Hello there.\\NSecond row.\n"
}

curl -X POST https://api.findutils.com/api/tools/ass-to-srt/execute \
  -H "Content-Type: application/json" \
  -d '{
    "input": "[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\nDialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,{\\an8}Hello there.\\NSecond row.\n"
  }'

const response = await fetch('https://api.findutils.com/api/tools/ass-to-srt/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"input":"[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\nDialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,{\\an8}Hello there.\\NSecond row.\n"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/ass-to-srt/execute",
    json={"input":"[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\nDialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,{\\an8}Hello there.\\NSecond row.\n"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/ass-to-srt/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"input":"[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\nDialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,{\\an8}Hello there.\\NSecond row.\n"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call ass_to_srt from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: ass-to-srt
MCP name: ass_to_srt
Category: Media
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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