curl --request POST \
  --url https://api.crun.ai/api/v1/client/job/CreateTask \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "model": "suno/music-extend",
  "callback_url": "https://your-domain.com/api/callback",
  "input": {
    "suno_id": "suno_abc123",
    "mode": "custom",
    "model": "v5",
    "continue_at": 30,
    "title": "Midnight Addiction (Extended)",
    "tags": "Western R&B, female vocal, dark, sensual",
    "prompt": "Keep the same dark R&B mood and extend with a new bridge and outro.",
    "vocal_gender": "f",
    "style_weight": 0.85,
    "audio_weight": 0.6,
    "weirdness_constraint": 0.2,
    "negative_tags": "metal, aggressive"
  }
}
'

import requests

url = "https://api.crun.ai/api/v1/client/job/CreateTask"

payload = {
    "model": "suno/music-extend",
    "callback_url": "https://your-domain.com/api/callback",
    "input": {
        "suno_id": "suno_abc123",
        "mode": "custom",
        "model": "v5",
        "continue_at": 30,
        "title": "Midnight Addiction (Extended)",
        "tags": "Western R&B, female vocal, dark, sensual",
        "prompt": "Keep the same dark R&B mood and extend with a new bridge and outro.",
        "vocal_gender": "f",
        "style_weight": 0.85,
        "audio_weight": 0.6,
        "weirdness_constraint": 0.2,
        "negative_tags": "metal, aggressive"
    }
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'suno/music-extend',
    callback_url: 'https://your-domain.com/api/callback',
    input: {
      suno_id: 'suno_abc123',
      mode: 'custom',
      model: 'v5',
      continue_at: 30,
      title: 'Midnight Addiction (Extended)',
      tags: 'Western R&B, female vocal, dark, sensual',
      prompt: 'Keep the same dark R&B mood and extend with a new bridge and outro.',
      vocal_gender: 'f',
      style_weight: 0.85,
      audio_weight: 0.6,
      weirdness_constraint: 0.2,
      negative_tags: 'metal, aggressive'
    }
  })
};

fetch('https://api.crun.ai/api/v1/client/job/CreateTask', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.crun.ai/api/v1/client/job/CreateTask",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'suno/music-extend',
    'callback_url' => 'https://your-domain.com/api/callback',
    'input' => [
        'suno_id' => 'suno_abc123',
        'mode' => 'custom',
        'model' => 'v5',
        'continue_at' => 30,
        'title' => 'Midnight Addiction (Extended)',
        'tags' => 'Western R&B, female vocal, dark, sensual',
        'prompt' => 'Keep the same dark R&B mood and extend with a new bridge and outro.',
        'vocal_gender' => 'f',
        'style_weight' => 0.85,
        'audio_weight' => 0.6,
        'weirdness_constraint' => 0.2,
        'negative_tags' => 'metal, aggressive'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.crun.ai/api/v1/client/job/CreateTask"

	payload := strings.NewReader("{\n  \"model\": \"suno/music-extend\",\n  \"callback_url\": \"https://your-domain.com/api/callback\",\n  \"input\": {\n    \"suno_id\": \"suno_abc123\",\n    \"mode\": \"custom\",\n    \"model\": \"v5\",\n    \"continue_at\": 30,\n    \"title\": \"Midnight Addiction (Extended)\",\n    \"tags\": \"Western R&B, female vocal, dark, sensual\",\n    \"prompt\": \"Keep the same dark R&B mood and extend with a new bridge and outro.\",\n    \"vocal_gender\": \"f\",\n    \"style_weight\": 0.85,\n    \"audio_weight\": 0.6,\n    \"weirdness_constraint\": 0.2,\n    \"negative_tags\": \"metal, aggressive\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.crun.ai/api/v1/client/job/CreateTask")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"suno/music-extend\",\n  \"callback_url\": \"https://your-domain.com/api/callback\",\n  \"input\": {\n    \"suno_id\": \"suno_abc123\",\n    \"mode\": \"custom\",\n    \"model\": \"v5\",\n    \"continue_at\": 30,\n    \"title\": \"Midnight Addiction (Extended)\",\n    \"tags\": \"Western R&B, female vocal, dark, sensual\",\n    \"prompt\": \"Keep the same dark R&B mood and extend with a new bridge and outro.\",\n    \"vocal_gender\": \"f\",\n    \"style_weight\": 0.85,\n    \"audio_weight\": 0.6,\n    \"weirdness_constraint\": 0.2,\n    \"negative_tags\": \"metal, aggressive\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.crun.ai/api/v1/client/job/CreateTask")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"suno/music-extend\",\n  \"callback_url\": \"https://your-domain.com/api/callback\",\n  \"input\": {\n    \"suno_id\": \"suno_abc123\",\n    \"mode\": \"custom\",\n    \"model\": \"v5\",\n    \"continue_at\": 30,\n    \"title\": \"Midnight Addiction (Extended)\",\n    \"tags\": \"Western R&B, female vocal, dark, sensual\",\n    \"prompt\": \"Keep the same dark R&B mood and extend with a new bridge and outro.\",\n    \"vocal_gender\": \"f\",\n    \"style_weight\": 0.85,\n    \"audio_weight\": 0.6,\n    \"weirdness_constraint\": 0.2,\n    \"negative_tags\": \"metal, aggressive\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_12345678"
  }
}

{
  "code": 422,
  "message": "Missing Params or Type Error",
  "errors": [
    "specific error field message"
  ]
}