curl --request POST \
  --url https://api.ttapi.io/suno/v1/extend \
  --header 'Content-Type: application/json' \
  --header 'TT-API-KEY: <api-key>' \
  --data '
{
  "custom": true,
  "music_id": "<string>",
  "continue_at": 10,
  "gpt_description_prompt": "Night city lo-fi piano with rain ambience, soft vocal phrases, theme: \"Under the city lights\"",
  "prompt": "<string>",
  "title": "<string>",
  "tags": "rock, blues, hip-hop, r&b",
  "negative_tags": "<string>",
  "style_weight": 0.5,
  "weirdness_constraint": 0.5,
  "audio_weight": 0.5,
  "duration": 120,
  "auto_lyrics": false,
  "persona_id": "<string>",
  "isStorage": true,
  "hookUrl": "<string>"
}
'

import requests

url = "https://api.ttapi.io/suno/v1/extend"

payload = {
    "custom": True,
    "music_id": "<string>",
    "continue_at": 10,
    "gpt_description_prompt": "Night city lo-fi piano with rain ambience, soft vocal phrases, theme: \"Under the city lights\"",
    "prompt": "<string>",
    "title": "<string>",
    "tags": "rock, blues, hip-hop, r&b",
    "negative_tags": "<string>",
    "style_weight": 0.5,
    "weirdness_constraint": 0.5,
    "audio_weight": 0.5,
    "duration": 120,
    "auto_lyrics": False,
    "persona_id": "<string>",
    "isStorage": True,
    "hookUrl": "<string>"
}
headers = {
    "TT-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'TT-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    custom: true,
    music_id: '<string>',
    continue_at: 10,
    gpt_description_prompt: 'Night city lo-fi piano with rain ambience, soft vocal phrases, theme: "Under the city lights"',
    prompt: '<string>',
    title: '<string>',
    tags: 'rock, blues, hip-hop, r&b',
    negative_tags: '<string>',
    style_weight: 0.5,
    weirdness_constraint: 0.5,
    audio_weight: 0.5,
    duration: 120,
    auto_lyrics: false,
    persona_id: '<string>',
    isStorage: true,
    hookUrl: '<string>'
  })
};

fetch('https://api.ttapi.io/suno/v1/extend', 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.ttapi.io/suno/v1/extend",
  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([
    'custom' => true,
    'music_id' => '<string>',
    'continue_at' => 10,
    'gpt_description_prompt' => 'Night city lo-fi piano with rain ambience, soft vocal phrases, theme: "Under the city lights"',
    'prompt' => '<string>',
    'title' => '<string>',
    'tags' => 'rock, blues, hip-hop, r&b',
    'negative_tags' => '<string>',
    'style_weight' => 0.5,
    'weirdness_constraint' => 0.5,
    'audio_weight' => 0.5,
    'duration' => 120,
    'auto_lyrics' => false,
    'persona_id' => '<string>',
    'isStorage' => true,
    'hookUrl' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "TT-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.ttapi.io/suno/v1/extend"

	payload := strings.NewReader("{\n  \"custom\": true,\n  \"music_id\": \"<string>\",\n  \"continue_at\": 10,\n  \"gpt_description_prompt\": \"Night city lo-fi piano with rain ambience, soft vocal phrases, theme: \\\"Under the city lights\\\"\",\n  \"prompt\": \"<string>\",\n  \"title\": \"<string>\",\n  \"tags\": \"rock, blues, hip-hop, r&b\",\n  \"negative_tags\": \"<string>\",\n  \"style_weight\": 0.5,\n  \"weirdness_constraint\": 0.5,\n  \"audio_weight\": 0.5,\n  \"duration\": 120,\n  \"auto_lyrics\": false,\n  \"persona_id\": \"<string>\",\n  \"isStorage\": true,\n  \"hookUrl\": \"<string>\"\n}")

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

	req.Header.Add("TT-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.ttapi.io/suno/v1/extend")
  .header("TT-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"custom\": true,\n  \"music_id\": \"<string>\",\n  \"continue_at\": 10,\n  \"gpt_description_prompt\": \"Night city lo-fi piano with rain ambience, soft vocal phrases, theme: \\\"Under the city lights\\\"\",\n  \"prompt\": \"<string>\",\n  \"title\": \"<string>\",\n  \"tags\": \"rock, blues, hip-hop, r&b\",\n  \"negative_tags\": \"<string>\",\n  \"style_weight\": 0.5,\n  \"weirdness_constraint\": 0.5,\n  \"audio_weight\": 0.5,\n  \"duration\": 120,\n  \"auto_lyrics\": false,\n  \"persona_id\": \"<string>\",\n  \"isStorage\": true,\n  \"hookUrl\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.ttapi.io/suno/v1/extend")

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

request = Net::HTTP::Post.new(url)
request["TT-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"custom\": true,\n  \"music_id\": \"<string>\",\n  \"continue_at\": 10,\n  \"gpt_description_prompt\": \"Night city lo-fi piano with rain ambience, soft vocal phrases, theme: \\\"Under the city lights\\\"\",\n  \"prompt\": \"<string>\",\n  \"title\": \"<string>\",\n  \"tags\": \"rock, blues, hip-hop, r&b\",\n  \"negative_tags\": \"<string>\",\n  \"style_weight\": 0.5,\n  \"weirdness_constraint\": 0.5,\n  \"audio_weight\": 0.5,\n  \"duration\": 120,\n  \"auto_lyrics\": false,\n  \"persona_id\": \"<string>\",\n  \"isStorage\": true,\n  \"hookUrl\": \"<string>\"\n}"

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

{
  "status": "SUCCESS",
  "message": "success",
  "data": {
    "jobId": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  }
}

{
  "status": "FAILED",
  "message": "<string>",
  "data": {}
}

{
  "status": "FAILED",
  "message": "Wrong TT-API-KEY or email is not activated."
}