transcribe_audio
Transcribe audio (speech-to-text)
Speech-to-text for a public MP3 or WAV file (audio_url, up to 30 minutes): transcript, detected language, timestamped segments and optional SRT/VTT subtitles (format=srt|vtt); task=translate returns English. Paid only, no free tier: $0.003 per started audio minute (minimum 1). Call without payment to get the exact quote for your file (x402 payment terms); then retry with params._meta["x402/payment"] or a prepaid credits key (Authorization: Bearer yatc_...). Charged only when a transcript is returned. Not for m4a, ogg, flac or webm (convert to MP3 or WAV first).
vadtaskformatpromptlanguageaudio_urlrequired