75trust / 100
Audio Loudnorm
by AgentUtility.ai in News & content
x402 APIPassing, checked 15 min ago
Normalize audio loudness to a target LUFS level for podcasts, YouTube, and Spotify delivery. Send an audio_url plus an optional target_lufs (defaults to -16) and true_peak, and it probes duration, runs two-pass EBU R128 loudness normalization, and returns a hosted MP3 URL with the applied target and duration in seconds. Common presets: -23 for broadcast, -16 for podcasts, -14 for streaming platforms. Use it as a loudness normalizer, LUFS correction API, or audio mastering step before publishing.
POST https://x402.agentutility.ai/audio-loudnorm
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- Uptime
- 83.3%
- Response time
- 188 ms typical, 3.0 s slowest 5%
- Last check
- 15 min ago
- Next check
- in 17 min
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402.agentutility.ai/audio-loudnorm" \
-H "content-type: application/json" \
-d '{"audio_url":"https://download.samplelib.com/mp3/sample-3s.mp3","target_lufs":-16}'import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.agentutility.ai%2Faudio-loudnorm
const res = await pay("https://x402.agentutility.ai/audio-loudnorm", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"audio_url":"https://download.samplelib.com/mp3/sample-3s.mp3","target_lufs":-16}),
});
console.log(await res.json());Example input
{
"audio_url": "https://download.samplelib.com/mp3/sample-3s.mp3",
"target_lufs": -16
}Example output
{
"audio_url": "https://...mp3",
"duration_seconds": 120,
"target_lufs": -16
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 15 min ago | Passed | 402 | 126 ms | $0.02 |
| 4 h ago | Passed | 402 | 41 ms | $0.02 |
| 7 h ago | Passed | 402 | 188 ms | $0.02 |
| 11 h ago | Passed | 402 | 229 ms | $0.02 |
| 14 h ago | Timed out | - | - | - |
| 18 h ago | Passed | 402 | 564 ms | $0.02 |
| 22 h ago | Passed | 402 | 6.5 s | $0.02 |
| 25 h ago | Passed | 402 | 3.0 s | $0.02 |
| 29 h ago | Passed | 402 | 188 ms | $0.02 |
| 32 h ago | Passed | 402 | 159 ms | $0.02 |
| 36 h ago | Timed out | - | - | - |
| 41 h ago | Passed | 402 | 49 ms | $0.02 |