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HALOWERK Subtitle Translator
x402
HALOWERK Subtitle Translator is a paid API for AI agents from medien.halowerk.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Translates SRT or WebVTT subtitle files into a target language while preserving cue numbers, order, and timing exactly as in the original
Price / call$0.01
Success—
StatusUnknown
How this service works
Takes subtitle text in SRT or WebVTT and a target language and returns the translated file: every cue is translated on its own so that number, order and timing of cues stay exactly as in the original, which is checked on each model answer. Line breaks inside a cue are joined for translation. Output in SRT or WebVTT. Translation by a language model at Groq, which does not train on inputs; disclosed in the answer. Machine translation, unreviewed.
Output
A complete translated subtitle file in the requested format (SRT or WebVTT). Every cue is individually translated with its original number, timestamp, and structure intact. Line breaks within cues are joined for translation then restored. The response discloses that translation was performed by a Groq language model and is machine-translated and unreviewed.
Example use cases
Localize documentary for German release
“I have an English WebVTT subtitle file for a documentary I need to release in Germany — can you translate it into German and give me back a VTT file with all the timecodes untouched?”
Spanish subtitles for online course
“Can you translate this English SRT subtitle file into Spanish so I can add it to my online course? Keep all the cue numbers and timing exactly the same, just translate the text.”
Japanese captions for YouTube video
“I need Japanese subtitles for my YouTube video — here's the English SRT file, please translate it to Japanese and return it as an SRT file with all the timestamps preserved.”
Technical details
Endpoint
POSThttps://medien.halowerk.com/v1/subtitle-translate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to translate subtitle files (SRT or WebVTT) while strictly preserving the original cue structure, numbering, and timing. It supports 18 target languages and costs only $0.01 USDC per call via x402 micropayment. Prefer it over general-purpose translation APIs when the output must be a ready-to-use subtitle file rather than plain translated text, and when you need the reassurance that cue count and order are verified after translation. Not suitable for human-reviewed professional translation.
Side effects
- Input subtitle text shorter than 10 characters or exceeding 1,500,000 characters — validation error
- Unsupported target language code supplied — enum validation error
- Invalid or malformed SRT/WebVTT input that cannot be parsed — processing error
- Groq API unavailability causing translation failure — upstream service error
- Cue count mismatch between original and translated output detected — internal consistency check failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| subtitles | string | |
| output_format | string | |
| target_language | string |
Tags
x402
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