Check a translated subtitle file against the original
Check a translated subtitle file against the original: meaning, grammar, timing, reading speed. Give the URLs of the original .srt or .vtt and its translation. A reviewer reads every cue pair and returns a 0-100 score, a verdict and only the cues that need attention (mistranslation, omission, grammar, spelling, unnatural phrasing) with a suggested correction, plus technical checks: cue count, timing drift, reading speed, line length. Works across any language pair, including Ukrainian.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://sift.srv1996466.hstgr.cloud/v1/yt/check-subtitles
| Category | Everything else |
|---|---|
| Provider host | sift.srv1996466.hstgr.cloud |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.015 | 1010 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"source_url": "https://sift.srv1996466.hstgr.cloud/samples/subtitles.srt",
"translated_url": "https://sift.srv1996466.hstgr.cloud/samples/subtitles-es.srt"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"source_language": {
"description": "Language of the original",
"type": "string"
},
"source_url": {
"description": "Original subtitle file URL",
"type": "string"
},
"target_language": {
"description": "Language of the translation",
"type": "string"
},
"translated_url": {
"description": "Translated subtitle file URL",
"type": "string"
}
},
"required": [
"source_url",
"translated_url"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}