Converts MP4, MOV, WEBM, MKV, AVI, M4V, or FLV URLs into hosted MP3 output with
Converts MP4, MOV, WEBM, MKV, AVI, M4V, or FLV URLs into hosted MP3 output with selectable 96, 128, or 192 kbps bitrate. CloudConvert backend, 60-min / 500MB max. Use it as an MP4 to MP3 API, video to MP3 converter, or extract-audio-from-video endpoint.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
20 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.agentutility.ai/mp4-to-mp3-api
| Category | Image and media |
|---|---|
| Provider host | x402.agentutility.ai |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.02 | 20 ms |
Example input (from the provider)
{
"body": {
"bitrate": 128,
"video_url": "https://samplelib.com/mp4/sample-5s.mp4"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"bitrate": {
"description": "Output MP3 bitrate in kbps. 96 (smaller, voice), 128 (default, balanced), 192 (higher quality).",
"enum": [
96,
128,
192
],
"type": "number"
},
"video_url": {
"description": "Public URL of the source video. Max 500MB / 60 minutes.",
"type": "string"
}
},
"required": [
"video_url"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"audio_url": {
"type": "string"
},
"bitrate": {
"type": "integer"
},
"file_size_bytes": {
"type": "integer"
},
"source_url": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}