agentutility(7)$ man mp4-to-mp3
/mp4-to-mp3
PRICE / CALL
$0.02
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
mediakitCATEGORY
media
STATUS
● live
NAME
mp4-to-mp3 — converts mp4, mov, webm, mkv, avi, m4v, and flv video files to mp3 via cloudconvert, with selectable bitrate (96/128/192 kbps)
SYNOPSIS
POST https://x402.agentutility.ai/mp4-to-mp3
Content-Type: application/json
X-PAYMENT: <signed-transferWithAuthorization>
{ ... }↳ first call →
402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.DESCRIPTION
Converts MP4, MOV, WebM, MKV, AVI, M4V, and FLV video files to MP3 via CloudConvert, with selectable bitrate (96/128/192 kbps). 60-min / 500MB max. Use it as an MP4 to MP3 converter, video to audio converter, or audio extractor API.
INPUT — request schema
| property | type | description | req? |
|---|---|---|---|
| video_url | string | Public URL of the source video. Max 500MB / 60 minutes. | required |
| bitrate | number | Output MP3 bitrate in kbps. 96 (smaller, voice), 128 (default, balanced), 192 (higher quality). enum: 96 · 128 · 192 | optional |
OUTPUT — response shape
| field | type | description |
|---|---|---|
| audio_url | string | Signed CloudConvert URL of the extracted MP3 (24h expiry). |
| bitrate | number | Bitrate applied (kbps). |
| file_size_bytes | number | Output MP3 size in bytes. |
| content_type | string | MIME type of the output (typically audio/mpeg). |
| source_url | string | Echo of the input URL. |
| job_id | string | CloudConvert job id (useful for support). |
EXAMPLES — two ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/mp4-to-mp3 \
-H 'Content-Type: application/json' \
-d '{ }'first response =
402 Payment Required with payment requirements; sign + retry with X-PAYMENT.EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster npx -y @agentutility/mcp-<cluster> # Required: EVM private key with USDC on Base export X402_PRIVATE_KEY=0x... # Then call the mp4-to-mp3 tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
- tags
- mp4mp3audioextractconvertvideo
- env
- CLOUD_CONVERT_API_KEY
- methods
- POST
- cluster
- mediakit
- price
- $0.02 USDC per call
ADJACENT — other endpoints in mediakit
| endpoint | description | price |
|---|---|---|
| add-watermark | Add watermark to PDF, image, or video. | $0.02 |
| audio-loudnorm | Audio loudness normalizer (EBU R128 LUFS). | $0.02 |
| csv-to-jsonl | Converts CSV or TSV data into JSON, JSONL/NDJSON, or column-oriented arrays. | $0.02 |
| image-translate | Image translator. | $0.02 |
| image-upscale | Upscales an image 2x or 4x via Venice's image/upscale endpoint (default model: venice-sd35). | $0.02 |
| image-watermark | Image watermark / add text or logo watermark to image files. | $0.02 |
| mp4-to-mp3-api | Converts MP4, MOV, WEBM, MKV, AVI, M4V, or FLV URLs into hosted MP3 output with selectable 96, 128, or 192 kbps bitrate. | $0.02 |
| mp4-to-mp3-converter | Converts MP4 video URLs into hosted MP3 files with selectable bitrate; also accepts MOV, WEBM, MKV, AVI, M4V, or FLV URLs. | $0.02 |
SEE ALSO