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Video to Audio Converter (MP3 Extractor)
x402
Video to Audio Converter (MP3 Extractor) is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Extracts an MP3 audio track from a video file URL (MP4, MOV, WEBM, MKV, AVI, M4V, FLV) at a selectable bitrate, returning a download URL for the resulting audio file.
Price / call$0.02
Success—
StatusUnknown
How this service works
Video to audio extractor / video to audio converter. Extract MP3 audio track from any video URL (MP4, MOV, WEBM, MKV, AVI, M4V, FLV). Selectable bitrate (96/128/192 kbps). Useful for podcast extraction, audio archival, transcription pre-processing. 60-min / 500MB max. CloudConvert backend.
Output
A JSON object containing the URL of the generated MP3 file (audio_url), the source video URL (source_url), the output bitrate in kbps (bitrate), and the file size in bytes (file_size_bytes).
Example use cases
Podcast audio extraction from video recording
“I recorded an interview as an MP4 video at https://example.com/episode42.mp4 — can you pull out just the audio as an MP3 at 192 kbps so I can publish it as a podcast episode?”
Transcription preprocessing from conference talk
“I need to transcribe this conference talk video at https://example.com/keynote.mp4 — can you convert it to MP3 at 128 kbps first so I can feed it into a speech-to-text tool?”
Audio archival of video content
“Can you strip the audio track from this webinar video at https://example.com/webinar.webm and save it as an MP3 at 96 kbps? I just need the voice content archived without the video.”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/video-to-audioWhen to prefer
Use this endpoint when you need a quick, pay-per-call audio extraction from a publicly accessible video URL without setting up your own media processing pipeline. Ideal for agents that need to preprocess video for transcription, archive audio from video recordings, or produce podcast audio from video content. Supports a wide range of input formats (MP4, MOV, WEBM, MKV, AVI, M4V, FLV) and allows control over output quality via bitrate selection.
Side effects
- Video URL is not publicly accessible or requires authentication — returns an error
- Video file exceeds 500MB or 60-minute limit — rejected before processing
- Unsupported video format — conversion fails
- Network timeout fetching the remote video
- Invalid or malformed URL in the request body
- CloudConvert backend outage causes processing failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"bitrate": 128,
"audio_url": "https://...mp3",
"source_url": "https://samplelib.com/mp4/sample-5s.mp4",
"file_size_bytes": 161109
}
}Tags
x402
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