API Reference

Suno Vocal Separation

从成曲里分离出主人声，或指定某一条乐器轨。

POST https://api.tu-zi.com/suno/v2/stems

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# Suno Vocal Separation

从成曲里分离出主人声，或指定某一条乐器轨。

## 接口与鉴权

`POST https://api.tu-zi.com/suno/v2/stems`

传输方式: json

使用模型调用 API Key。示例凭证为占位符，请从环境变量读取真实密钥。

```http
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
```

## 请求体参数

| 字段 | 类型 | 必填 | 说明与约束 |
| --- | --- | --- | --- |
| audio_format | string | 否 | 成品音频的格式，不填默认 mp3。 可选值: "mp3", "m4a", "wav" |
| music_id | string | 是 | 要处理的曲目，填之前生成结果里的 music_id。 示例: MUSIC_ID |
| stem_type | string | 否 | 要单独分离出哪一条轨，不填默认取主人声。 表单初始值（非上游默认值）: "lead_vocal" 可选值: "lead_vocal", "drum_kit", "bass", "backing_vocals", "piano", "electric_guitar", "percussion", "string_section", "synth", "acoustic_guitar", "sound_effects", "synth_pad", "synth_bass", "guitar", "brass_section", "organ", "electronic_drum_kit", "lead_electric_guitar", "synth_keys", "rhythm_electric_guitar", "electric_piano", "upright_bass", "keyboards", "distorted_electric_guitar", "kick", "snare", "risers", "synth_strings", "synth_lead", "woodwinds", "flute", "harp", "tambourine", "trumpet", "arpeggiator", "accordion", "fiddle", "pedal_steel_guitar", "synth_voice", "violin", "digital_piano", "synth_brass", "mandolin", "choir", "banjo", "bells", "clarinet", "tenor_saxophone", "trombone", "shaker", "french_horn", "glockenspiel", "electric_bass", "cello", "timpani", "harmonica", "marimba", "vibraphone", "lap_steel_guitar", "saxophone", "orchestra", "horns", "cymbals", "hand_clap", "oboe", "celesta", "congas", "drone", "alto_saxophone", "double_bass", "ukulele", "harpsichord", "baritone_saxophone", "xylophone", "tuba", "bass_guitar", "whistle", "lead_guitar", "rhodes", "808", "bongos", "bassoon", "cowbell", "viola", "sitar", "steel_drums", "piccolo", "theremin", "bagpipes", "hi_hat", "music_box", "melodica", "tabla", "koto", "djembe", "taiko", "didgeridoo" |

## 最小请求示例

```json
{
  "music_id": "MUSIC_ID"
}
```

## 运行前准备

将 https://api.tu-zi.com 替换为本站地址（不要重复追加 /v1），YOUR_MODEL 替换为模型广场中的完整模型名。Python 示例需要先安装 requests；JavaScript 示例使用 Node.js 20+ 并保存为 .mjs 文件。WebSocket 示例按代码注释安装专用依赖。

先在本站令牌页面创建模型调用密钥，并设置 API_KEY 环境变量；cURL 中的 YOUR_API_KEY 需要替换。上传示例中的 input.png/input.wav 是本地文件，必须提前准备。

首次运行使用最小请求；成功后对照下方响应字段读取结果。异步接口返回任务 ID 后仍需查询，任务提交成功不代表生成已完成。

## 代码示例

### curl

```bash
curl --request POST 'https://api.tu-zi.com/suno/v2/stems' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "music_id": "MUSIC_ID"
}'
```

### python

```python
import json
import os
import requests

url = "https://api.tu-zi.com/suno/v2/stems"
headers = json.loads("{\"Authorization\":\"Bearer YOUR_API_KEY\",\"Content-Type\":\"application/json\"}")
headers["Authorization"] = "Bearer " + os.environ["API_KEY"]
payload = json.loads("{\"music_id\":\"MUSIC_ID\"}")
response = requests.request("POST", url, headers=headers, json=payload, timeout=120)
response.raise_for_status()
result = response.json()
if isinstance(result, dict) and (result.get("success") is False or result.get("error")):
    raise RuntimeError(json.dumps(result, ensure_ascii=False))
print(result)  # Also inspect protocol-specific status/code fields.
```

### javascript

```javascript
// Node.js 20+
const url = "https://api.tu-zi.com/suno/v2/stems";
const headers = {
  "Authorization": "Bearer YOUR_API_KEY",
  "Content-Type": "application/json"
};
headers.Authorization = 'Bearer ' + process.env.API_KEY;
const response = await fetch(url, { method: "POST", headers, body: JSON.stringify({
  "music_id": "MUSIC_ID"
}) });
if (!response.ok) throw new Error(await response.text());
const result = await response.json();
if (result?.success === false || result?.error) throw new Error(JSON.stringify(result));
console.log(result); // Also inspect protocol-specific status/code fields.
```

## 响应字段

| 字段 | 类型 | 说明与约束 |
| --- | --- | --- |
| code | string | 提交结果码。 |
| data.task_id | string | 本站公开任务 ID。 |

以下为示例响应，部分接口仅展示主要字段；可选字段不保证出现。

```json
{
  "code": "success",
  "data": {
    "task_id": "task_example"
  }
}
```

## 异步任务

保存返回的公开任务 ID，用同一 Key GET /suno/v2/fetch/{task_id} 查询。按返回的本站状态处理，SUCCESS 和 FAILURE 为终态；完成后按结果类型读取音乐、歌词、下载链接或资源 ID。

## 错误处理与重试

检查 HTTP 状态与该协议的错误对象；不要将不同协议的错误字段混用。401/403 检查凭证与权限，429 退避等待，5xx 检查网关或上游状态。错误正文可能含 error/message/code 等字段，以实际协议为准。

查询可采用有上限的指数退避；创建任务、生成内容、创建或删除密钥等操作不要盲目重试，以免重复计费或重复执行。

## 适用限制

模型标识 suno/stems 由动作路由确定，请求体不必额外传 model。素材 ID 使用当前账号经本站创建的资源；不要填上游内部 ID。

## 文档依据

定义版本: 1

审核日期: 2026-11-02

来源: https://api.tu-zi.com/docs/api/reference-relay-suno-v2-stems

关联协议说明: https://api.tu-zi.com/docs/api/suno

本文只包含接口文档和示例。真实密钥、账号数据及用户请求内容不包含在复制内容中。

更新 2026-11-02 · 审核信息 2026-11-02

接口与鉴权

POST https://api.tu-zi.com/suno/v2/stems

传输方式: json

使用模型调用 API Key。示例凭证为占位符，请从环境变量读取真实密钥。

Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

最小请求示例

{
  "music_id": "MUSIC_ID"
}

运行前准备

将 https://api.tu-zi.com 替换为本站地址（不要重复追加 /v1），YOUR_MODEL 替换为模型广场中的完整模型名。Python 示例需要先安装 requests；JavaScript 示例使用 Node.js 20+ 并保存为 .mjs 文件。WebSocket 示例按代码注释安装专用依赖。

先在本站令牌页面创建模型调用密钥，并设置 API_KEY 环境变量；cURL 中的 YOUR_API_KEY 需要替换。上传示例中的 input.png/input.wav 是本地文件，必须提前准备。

首次运行使用最小请求；成功后对照下方响应字段读取结果。异步接口返回任务 ID 后仍需查询，任务提交成功不代表生成已完成。

适用限制

模型标识 suno/stems 由动作路由确定，请求体不必额外传 model。素材 ID 使用当前账号经本站创建的资源；不要填上游内部 ID。

请求体参数

字段	类型	必填	说明与约束
audio_format	string	否	成品音频的格式，不填默认 mp3。可选值: "mp3", "m4a", "wav"
music_id	string	是	要处理的曲目，填之前生成结果里的 music_id。示例: MUSIC_ID
stem_type	string	否	要单独分离出哪一条轨，不填默认取主人声。表单初始值（非上游默认值）: "lead_vocal" 可选值: "lead_vocal", "drum_kit", "bass", "backing_vocals", "piano", "electric_guitar", "percussion", "string_section", "synth", "acoustic_guitar", "sound_effects", "synth_pad", "synth_bass", "guitar", "brass_section", "organ", "electronic_drum_kit", "lead_electric_guitar", "synth_keys", "rhythm_electric_guitar", "electric_piano", "upright_bass", "keyboards", "distorted_electric_guitar", "kick", "snare", "risers", "synth_strings", "synth_lead", "woodwinds", "flute", "harp", "tambourine", "trumpet", "arpeggiator", "accordion", "fiddle", "pedal_steel_guitar", "synth_voice", "violin", "digital_piano", "synth_brass", "mandolin", "choir", "banjo", "bells", "clarinet", "tenor_saxophone", "trombone", "shaker", "french_horn", "glockenspiel", "electric_bass", "cello", "timpani", "harmonica", "marimba", "vibraphone", "lap_steel_guitar", "saxophone", "orchestra", "horns", "cymbals", "hand_clap", "oboe", "celesta", "congas", "drone", "alto_saxophone", "double_bass", "ukulele", "harpsichord", "baritone_saxophone", "xylophone", "tuba", "bass_guitar", "whistle", "lead_guitar", "rhodes", "808", "bongos", "bassoon", "cowbell", "viola", "sitar", "steel_drums", "piccolo", "theremin", "bagpipes", "hi_hat", "music_box", "melodica", "tabla", "koto", "djembe", "taiko", "didgeridoo"

响应字段

字段	类型	说明与约束
code	string	提交结果码。
data.task_id	string	本站公开任务 ID。

以下为示例响应，部分接口仅展示主要字段；可选字段不保证出现。

{
  "code": "success",
  "data": {
    "task_id": "task_example"
  }
}

异步任务

保存返回的公开任务 ID，用同一 Key GET /suno/v2/fetch/{task_id} 查询。按返回的本站状态处理，SUCCESS 和 FAILURE 为终态；完成后按结果类型读取音乐、歌词、下载链接或资源 ID。

错误处理与重试

检查 HTTP 状态与该协议的错误对象；不要将不同协议的错误字段混用。401/403 检查凭证与权限，429 退避等待，5xx 检查网关或上游状态。错误正文可能含 error/message/code 等字段，以实际协议为准。

查询可采用有上限的指数退避；创建任务、生成内容、创建或删除密钥等操作不要盲目重试，以免重复计费或重复执行。

文档信息与来源

文档依据

定义版本: 1

审核日期: 2026-11-02

来源: https://api.tu-zi.com/docs/api/reference-relay-suno-v2-stems

关联协议说明: https://api.tu-zi.com/docs/api/suno

本文只包含接口文档和示例。真实密钥、账号数据及用户请求内容不包含在复制内容中。

请求示例

curl --request POST 'https://api.tu-zi.com/suno/v2/stems' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "music_id": "MUSIC_ID"
}'

import json
import os
import requests

url = "https://api.tu-zi.com/suno/v2/stems"
headers = json.loads("{\"Authorization\":\"Bearer YOUR_API_KEY\",\"Content-Type\":\"application/json\"}")
headers["Authorization"] = "Bearer " + os.environ["API_KEY"]
payload = json.loads("{\"music_id\":\"MUSIC_ID\"}")
response = requests.request("POST", url, headers=headers, json=payload, timeout=120)
response.raise_for_status()
result = response.json()
if isinstance(result, dict) and (result.get("success") is False or result.get("error")):
    raise RuntimeError(json.dumps(result, ensure_ascii=False))
print(result)  # Also inspect protocol-specific status/code fields.

// Node.js 20+
const url = "https://api.tu-zi.com/suno/v2/stems";
const headers = {
  "Authorization": "Bearer YOUR_API_KEY",
  "Content-Type": "application/json"
};
headers.Authorization = 'Bearer ' + process.env.API_KEY;
const response = await fetch(url, { method: "POST", headers, body: JSON.stringify({
  "music_id": "MUSIC_ID"
}) });
if (!response.ok) throw new Error(await response.text());
const result = await response.json();
if (result?.success === false || result?.error) throw new Error(JSON.stringify(result));
console.log(result); // Also inspect protocol-specific status/code fields.