Name: audio-loudnorm
Price: 0.02 USDC
Availability: InStock

$ man audio-loudnorm

agentutility / mediakit / audio-loudnorm

PRICE / CALL

$0.02

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

mediakit

CATEGORY

media

STATUS

● live

NAME

audio-loudnorm — audio loudness normalizer (ebu r128 lufs)

SYNOPSIS

POST https://x402.agentutility.ai/audio-loudnorm
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Audio loudness normalizer (EBU R128 LUFS). Podcast / Spotify / YouTube target presets (-23 / -16 / -14). Two-pass dynamic mode. Returns hosted MP3.

INPUT — request schema

property	type	description	req?
audio_url	string	—	required
target_lufs	number	Default -16. Range -30 to -10.	optional
true_peak	number	Default -1.5. Range -9 to 0.	optional

OUTPUT — response shape

field	type	description
audio_url	string	URL of the normalized audio file (hosted by fal.ai)
duration_seconds	number	Duration of the source audio in seconds
target_lufs	number	The LUFS target that was applied
true_peak	number	The true peak limit that was applied
source_url	string	Echo of the input URL

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/audio-loudnorm \
  -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 audio-loudnorm tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: audioloudnormpodcastnormalizationebu-r128
methods: POST
cluster: mediakit
price: $0.02 USDC per call

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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).	$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