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x402 Voice-to-Text Transcription
x402
x402 Voice-to-Text Transcription is a paid API for AI agents from voice.cyberwarex.com, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-13).
Transcribes uploaded audio files to text, billed per 10-second block via x402 micropayment
Price / call$0.015
Success—
StatusUnknown
How this service works
Speech-to-text transcription for voice messages and audio clips. Upload a wav, mp3, m4a, ogg or webm file as multipart form-data and get the spoken text back as JSON. Runs a dedicated ASR model, so short noisy voice notes transcribe accurately. Accepts clips up to 10 minutes / 25 MB, billed per 10-second block. Use it to turn voice notes, call recordings, podcast clips or voicemail into text an agent can read.
Output
Returns a text transcript of the spoken content in the uploaded audio file, extracted from the binary audio data and billed per 10-second block of audio processed.
Example use cases
Transcribing a recorded meeting
“I recorded our team meeting as an audio file — can you transcribe it to text so I can share the notes with everyone?”
Converting voice memo to text
“I have a voice memo I recorded on my phone with some ideas I want to write up — please transcribe it to text for me.”
Transcribing a podcast interview
“Can you transcribe this audio clip from a podcast interview into text so I can quote it in my article?”
Technical details
Endpoint
POSThttps://voice.cyberwarex.com/transcribe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to convert speech audio to text and want pay-per-use micropayment billing via the x402 protocol, avoiding subscription commitments. Suitable for agents that process variable volumes of audio on demand.
Side effects
- Unsupported audio format or corrupted file returns an error
- Payment failure via x402 protocol prevents transcription
- Audio file too large or malformed binary data returns rejection
- Very noisy or low-quality audio may result in inaccurate or incomplete transcription
- Missing or empty file field returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| file | string | Audio file to transcribe (wav, mp3, m4a, ogg, webm, flac). Max 10 minutes and 25 MB. |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "Hey, quick voice note about the Q3 roadmap. Can we move the launch review to Thursday?"
}
}Tags
x402
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