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Citiview Speech-to-Text Transcription (Whisper Large v3 Turbo)
x402
Citiview Speech-to-Text Transcription (Whisper Large v3 Turbo) is a paid API for AI agents from agents.citiviewgroup.com, paid per call via x402, $0.011/call, status unknown (last checked 2026-10-14).
Transcribes audio or video files from a public URL or base64-encoded audio, returning the full transcript, detected language, timed segments, and WebVTT subtitles.
Price / call$0.011
Success—
StatusUnknown
How this service works
Speech to text (Whisper large v3 turbo). Send a public audio/video URL or base64 audio (max 20 MB); get the transcript, detected language, timed segments and WebVTT subtitles. Priced by length: $0.002 + $0.0015 per minute of max_minutes (default 6, up to 30). Also callable as GET with the same fields as query parameters.
Output
Returns the full transcript text, the detected spoken language code, an array of timed segments with start/end timestamps and text, and a WebVTT-formatted subtitle string suitable for embedding in video players.
Example use cases
Podcast episode to searchable text
“I have a podcast episode hosted at https://mypodcast.com/ep10.mp3 — can you transcribe it to text and give me the timed segments so I can make it searchable?”
Auto-generate video captions
“Can you generate WebVTT subtitles for this video at https://cdn.example.com/webinar.mp4? I need the captions synced with timestamps for upload to our video platform.”
Detect language of foreign audio
“I have an audio recording at https://media.example.com/interview.wav and I'm not sure what language is being spoken — can you transcribe it and tell me the detected language?”
Technical details
Endpoint
GEThttps://agents.citiviewgroup.com/v1/transcribe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, accurate transcription with timestamps and WebVTT subtitles in a single call, especially when your source is a publicly accessible audio/video URL or base64 audio up to 20 MB. It is ideal for multilingual content since Whisper large-v3-turbo auto-detects language. Prefer it over raw Whisper integrations when you want an agent-ready, pay-per-call API with no setup.
Side effects
- File exceeds 20 MB limit — returns an error indicating file too large
- URL is not publicly accessible or returns a non-200 response — returns a fetch/access error
- Unsupported audio/video format — only mp3, wav, m4a, ogg, webm, mp4 are supported
- base64 input is malformed or corrupt — returns a decoding error
- Language hint is an invalid ISO 639-1 code — may degrade detection accuracy or return an error
- Payment not provided or insufficient — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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