Full stem separation

Reference the source track: specified by task_id + audio_index, no need to record any extra id
Async task: submitting returns a task_id; poll GET /v1/music/tasks/:task_id for the result

Info

Source Audio Reference: No additional IDs are needed for tracks based on existing songs. Just pass task_id (the task ID from the previous run of this task) + audio_index (which result track in the data.result.music[] list, 1-based, default is 1).

Note

This endpoint has no version dimension: do not pass version — if passed, it is discarded and does not affect billing.

Request example

curl -X POST https://api.openveer.com/v1/music/generations/stemsAll \
  -H 'Authorization: Bearer <token>' \
  -H 'Content-Type: application/json' \
  --data '{
    "model": "suno",
    "task_id": "task_01ABC",
    "audio_index": 1
  }'

import requests

url = "https://api.openveer.com/v1/music/generations/stemsAll"

payload = {
    "model": "suno",
    "task_id": "task_01ABC",
    "audio_index": 1
}

headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())

const url = "https://api.openveer.com/v1/music/generations/stemsAll";

const payload = {
  model: "suno",
  task_id: "task_01ABC",
  audio_index: 1
};

const headers = {
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(payload)
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {
    url := "https://api.openveer.com/v1/music/generations/stemsAll"

    payload := map[string]interface{}{
        "model": "suno",
        "task_id": "task_01ABC",
        "audio_index": 1,
    }

    jsonData, _ := json.Marshal(payload)

    req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
    req.Header.Set("Authorization", "Bearer <token>")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(body))
}

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class Main {
    public static void main(String[] args) throws Exception {
        String url = "https://api.openveer.com/v1/music/generations/stemsAll";

        String payload = """
        {
          "model": "suno",
          "task_id": "task_01ABC",
          "audio_index": 1
        }
        """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create(url))
            .header("Authorization", "Bearer <token>")
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(payload))
            .build();

        HttpResponse<String> response = client.send(request,
            HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

<?php

$url = "https://api.openveer.com/v1/music/generations/stemsAll";

$payload = [
    "model" => "suno",
    "task_id" => "task_01ABC",
    "audio_index" => 1
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>

require 'net/http'
require 'json'
require 'uri'

url = URI("https://api.openveer.com/v1/music/generations/stemsAll")

payload = {
  model: "suno",
  task_id: "task_01ABC",
  audio_index: 1
}

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer <token>"
request["Content-Type"] = "application/json"
request.body = payload.to_json

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

import Foundation

let url = URL(string: "https://api.openveer.com/v1/music/generations/stemsAll")!

let payload: [String: Any] = [
    "model": "suno",
    "task_id": "task_01ABC",
    "audio_index": 1
]

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let error = error {
        print("Error: \(error)")
        return
    }

    if let data = data, let responseString = String(data: data, encoding: .utf8) {
        print(responseString)
    }
}

task.resume()

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var url = "https://api.openveer.com/v1/music/generations/stemsAll";

        var payload = @"{
            ""model"": ""suno"",
            ""task_id"": ""task_01ABC"",
            ""audio_index"": 1
        }";

        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

        var content = new StringContent(payload, Encoding.UTF8, "application/json");
        var response = await client.PostAsync(url, content);
        var result = await response.Content.ReadAsStringAsync();

        Console.WriteLine(result);
    }
}

#include <stdio.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl;
    CURLcode res;

    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();

    if(curl) {
        const char *url = "https://api.openveer.com/v1/music/generations/stemsAll";
        const char *payload = "{"
            "\"model\":\"suno\","
            "\"task_id\":\"task_01ABC\","
            "\"audio_index\":1"
        "}";

        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer <token>");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, url);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

        res = curl_easy_perform(curl);

        if(res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n",
                    curl_easy_strerror(res));
        }

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();
    return 0;
}

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSURL *url = [NSURL URLWithString:@"https://api.openveer.com/v1/music/generations/stemsAll"];

        NSDictionary *payload = @{
            @"model": @"suno",
            @"task_id": @"task_01ABC",
            @"audio_index": @1
        };

        NSError *error;
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:payload
                                                          options:0
                                                            error:&error];

        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];
        [request setValue:@"Bearer <token>" forHTTPHeaderField:@"Authorization"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        [request setHTTPBody:jsonData];

        NSURLSessionDataTask *task = [[NSURLSession sharedSession]
            dataTaskWithRequest:request
            completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                if (error) {
                    NSLog(@"Error: %@", error);
                    return;
                }
                NSString *result = [[NSString alloc] initWithData:data
                                                        encoding:NSUTF8StringEncoding];
                NSLog(@"%@", result);
            }];

        [task resume];
        [[NSRunLoop mainRunLoop] run];
    }
    return 0;
}

(* Requires cohttp and yojson libraries *)
open Lwt
open Cohttp
open Cohttp_lwt_unix

let url = "https://api.openveer.com/v1/music/generations/stemsAll"

let payload = {|{
  "model": "suno",
  "task_id": "task_01ABC",
  "audio_index": 1
}|}

let () =
  let headers = Header.init ()
    |> fun h -> Header.add h "Authorization" "Bearer <token>"
    |> fun h -> Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string payload in

  let response = Client.post ~headers ~body (Uri.of_string url) >>= fun (resp, body) ->
    body |> Cohttp_lwt.Body.to_string >|= fun body_str ->
    print_endline body_str
  in
  Lwt_main.run response

import 'dart:convert';
import 'package:http/http.dart' as http;

void main() async {
  final url = Uri.parse('https://api.openveer.com/v1/music/generations/stemsAll');

  final payload = {
    'model': 'suno',
    'task_id': 'task_01ABC',
    'audio_index': 1
  };

  final response = await http.post(
    url,
    headers: {
      'Authorization': 'Bearer <token>',
      'Content-Type': 'application/json',
    },
    body: jsonEncode(payload),
  );

  print(response.body);
}

library(httr)
library(jsonlite)

url <- "https://api.openveer.com/v1/music/generations/stemsAll"

payload <- list(
  model = "suno",
  task_id = "task_01ABC",
  audio_index = 1
)

response <- POST(
  url,
  add_headers(
    Authorization = "Bearer <token>",
    `Content-Type` = "application/json"
  ),
  body = toJSON(payload, auto_unbox = TRUE),
  encode = "raw"
)

cat(content(response, "text"))

Response example

{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}

{
  "error": {
    "code": 400,
    "message": "Invalid request parameters",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "code": 401,
    "message": "Authentication failed, please check your API key",
    "type": "authentication_error"
  }
}

{
  "error": {
    "code": 402,
    "message": "Insufficient account balance, please top up and try again",
    "type": "payment_required"
  }
}

{
  "error": {
    "code": 403,
    "message": "Access forbidden, you do not have permission to access this resource",
    "type": "permission_error"
  }
}

{
  "error": {
    "code": 429,
    "message": "Too many requests, please try again later",
    "type": "rate_limit_error"
  }
}

{
  "error": {
    "code": 500,
    "message": "Internal server error, please try again later",
    "type": "server_error"
  }
}

{
  "error": {
    "code": 502,
    "message": "Gateway error, the server is temporarily unavailable",
    "type": "bad_gateway"
  }
}

Authorizations

Authorization string

All endpoints require authentication using a Bearer Token

Get an API Key:

Visit the API Key management page to get your API Key

Add the following to the request headers when using it:

Authorization: Bearer YOUR_API_KEY

Body

model string

Audio model. Currently pass suno (defaults to suno if omitted).

task_id string

Our task_id of the job that produced the source track. If missing or the source cannot be resolved, a 400 is returned at submission time.

audio_index integer

Selects a track from the source task's data.result.music[] array (1-based; default 1).

audio_format string

Output audio format: mp3 / m4a / wav. This endpoint does not accept stem_type, version, or Max mode fields.

Note

Get Result: This is an asynchronous task. After submission, you will receive task_id and then poll GET /v1/music/tasks/{task_id} every 3–5 seconds until status becomes completed or failed (while generation is in progress, status may be pending or processing, and progress is an integer from 0 to 100 and is not guaranteed to change at fixed intervals). Once completed, the result contains each track URL. In case of failure, data.error.message provides the reason, and the deducted amount will be automatically refunded.

Response

code integer

Response status code

data array

Returned data array

status string

Task status

  * submitted - Submitted

task_id string

Unique task identifier (used to poll GET /v1/music/tasks/{task_id} for the result)

This documentation is built and hosted on Mintlify, a developer documentation platform.