curl https://api.snapgen.org/v1/audio/voice-changer \
  -H "Authorization: Bearer $SNAPGEN_API_KEY" \
  -F model=eleven-multilingual-sts-v2 \
  -F file=@performance.mp3 \
  -F voice=EXAVITQu4vr4xnSDxMaL \
  --output changed.mp3

curl https://api.snapgen.org/v1/audio/voice-changer \
  -H "Authorization: Bearer $SNAPGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "eleven-multilingual-sts-v2",
    "audio_url": "https://example.com/performance.mp3",
    "voice": "EXAVITQu4vr4xnSDxMaL"
  }' \
  --output changed.mp3

import os

import requests

with open("performance.mp3", "rb") as audio:
    response = requests.post(
        "https://api.snapgen.org/v1/audio/voice-changer",
        headers={"Authorization": f"Bearer {os.environ['SNAPGEN_API_KEY']}"},
        data={"model": "eleven-multilingual-sts-v2", "voice": "EXAVITQu4vr4xnSDxMaL"},
        files={"file": ("performance.mp3", audio, "audio/mpeg")},
        timeout=300,
    )
response.raise_for_status()
with open("changed.mp3", "wb") as output:
    output.write(response.content)

import { openAsBlob } from "node:fs";
import { writeFile } from "node:fs/promises";

const form = new FormData();
form.append("model", "eleven-multilingual-sts-v2");
form.append("file", await openAsBlob("performance.mp3"), "performance.mp3");
form.append("voice", "EXAVITQu4vr4xnSDxMaL");

const response = await fetch("https://api.snapgen.org/v1/audio/voice-changer", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.SNAPGEN_API_KEY}` },
  body: form,
});
if (!response.ok) throw new Error(await response.text());
await writeFile("changed.mp3", Buffer.from(await response.arrayBuffer()));

HTTP/1.1 200 OK
content-type: audio/mpeg
cache-control: no-store
x-gateway-execution-id: 5b1e9f3a-2c4d-4e6f-8a7b-9c0d1e2f3a4b

<binary MP3 audio>

{
  "error": {
    "message": "The audio must be at most 300 seconds long",
    "type": "invalid_request_error",
    "param": null,
    "code": "audio_too_long"
  }
}