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ManyLives Audio Captions
x402
ManyLives Audio Captions is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-21).
Transcribes audio to time-stamped SRT and VTT caption files, returning cue count and detected language
Price / call$0.015
Success—
StatusUnknown
How this service works
Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.
Output
Returns a JSON object containing: 'srt' (complete SRT-format caption string with numbered cues and timestamps), 'vtt' (WebVTT-format caption string), 'cues' (integer count of caption segments), and 'language' (detected or specified language code, e.g. 'en').
Example use cases
Podcast episode captioning
“I have a podcast audio file at https://example.com/episodes/ep42.mp3 — can you generate SRT and VTT captions for it in English with a max of 50 characters per line?”
Accessibility captions for video audio
“Take this audio track from my video at https://cdn.example.com/video-audio.ogg and create time-stamped VTT captions so I can make the video accessible — detect the language automatically.”
Multilingual lecture transcription
“Generate timed captions in SRT format for this lecture recording at https://university.example.com/lecture-audio.mp3, the language is Spanish.”
Technical details
Endpoint
POSThttps://api.manylives.me/paid/audio/captions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need timed caption files (SRT/VTT) from audio, especially when you want both formats in a single call with detected language. Ideal for AI agents automating accessibility workflows, podcast pipelines, or media processing where pay-per-call pricing (no subscription) suits low or variable volume. Use the base64 input for small embedded audio; use the URL input for remotely hosted files.
Side effects
- Audio URL not publicly accessible — returns error if the URL is private or returns non-audio content
- Unsupported audio format — obscure codecs may fail transcription
- Audio too large — very long audio files may time out or fail when using base64
- Invalid language code — unrecognized language codes may fall back to auto-detection or error
- Network fetch failure — transient connectivity issues reaching the audio URL
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | public https:// link to the audio (or audio_base64) |
| language | string | optional language code, e.g. en |
| max_line | string | optional characters per line, 20-60 (default 42) |
| audio_base64 | string | the audio, base64 (small files) |
Output
Schema · Response
{
"type": "json",
"example": {
"srt": "1\n00:00:00,000 --> 00:00:02,400\nWelcome back to the channel.\n",
"vtt": "WEBVTT\n\n00:00:00.000 --> 00:00:02.400\nWelcome back to the channel.\n",
"cues": 1,
"language": "en"
}
}Tags
x402
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