# Elevenlabs Music API

> プロンプトまたは構造化された作曲プランから音楽を生成。インストゥルメンタルにも対応

最大4100文字のテキスト`prompt`、または詳細な`composition_plan`から音楽を作曲します。プロンプト使用時、`music_length_ms`は3000～600000ミリ秒で、`force_instrumental`によりボーカルなしを保証できます。`respect_sections_durations`はプランの各セクションの時間をどの程度厳密に適用するかを制御します。`output_format`では多くのコーデックとサンプルレートを選択できます。

- Model id: `elevenlabs/music`
- Made by: ElevenLabs
- Category: Text to Music
- Output: audio
- Price per minute of your output audio: $0.60 / minute of output audio (cheapest run $0.60 (600 API credits))
- Run: `POST https://api.doitong.com/v1/run/elevenlabs/music`
- Quote: `POST https://api.doitong.com/v1/quote/elevenlabs/music`
- Docs page: https://doitong.com/ja/developers/models/elevenlabs/music

## Pricing

Price: **$0.60 / minute of output audio**. Price per minute of your output audio: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $1.80 = 1800 API credits (3 min output audio × $0.60).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/elevenlabs/music` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string \| null | no |  | ≤ 4100 characters | 希望する音楽のテキスト説明。 |
| `composition_plan` |  | object {positive_global_styles, negative_global_styles, sections} \| null | no |  |  | 音楽の構成を定義するプラン。 |
| `composition_plan.positive_global_styles` |  | array of string | yes |  |  | 曲全体に含めるスタイル。 |
| `composition_plan.negative_global_styles` |  | array of string | yes |  |  | 曲全体から除外するスタイル。 |
| `composition_plan.sections` |  | array of object {section_name, positive_local_styles, negative_local_styles, duration_ms, lines} | yes |  |  | 曲を構成するセクション。 |
| `composition_plan.sections[].section_name` |  | string | yes |  | 1 – 100 characters | セクション名。長さは1～100文字です。 |
| `composition_plan.sections[].positive_local_styles` |  | array of string | yes |  |  | このセクションに含めるスタイル。 |
| `composition_plan.sections[].negative_local_styles` |  | array of string | yes |  |  | このセクションから除外するスタイル。 |
| `composition_plan.sections[].duration_ms` |  | integer | yes |  | 3,000 – 120,000 | セクションの長さ（ミリ秒）。範囲は3000 ms～120000 msです。 |
| `composition_plan.sections[].lines` |  | array of string | yes |  |  | このセクションの歌詞。1行あたり200文字までです。 |
| `music_length_ms` |  | integer \| null | no |  | 3,000 – 600,000 | 任意の曲の長さ（ミリ秒）。範囲は3000 ms～600000 msで、プロンプト使用時のみ適用されます。省略すると、モデルがプロンプトから長さを決定します。 |
| `force_instrumental` |  | boolean | no | `false` |  | インストゥルメンタルのみの制御。プロンプト使用時のみ利用できます。trueにするとインストゥルメンタル出力が保証され、falseの場合はプロンプトに応じてインストゥルメンタルまたは非インストゥルメンタルの音楽が生成されます。 |
| `respect_sections_durations` |  | boolean | no | `true` |  | `composition_plan`のセクション時間を強制する設定。このプラン以外では効果がありません。Falseの場合、モデルは各セクションの長さを変更でき、プラン全体の曲の長さを変えずに品質とレイテンシが一般的に改善されます。trueの場合は各セクションの`duration_ms`を正確に適用します。 |
| `output_format` |  | enum (string) | no | `mp3_44100_128` | `mp3_22050_32`, `mp3_44100_32`, `mp3_44100_64`, `mp3_44100_96`, `mp3_44100_128`, `mp3_44100_192`, `pcm_8000`, `pcm_16000`, `pcm_22050`, `pcm_24000`, `pcm_44100`, `pcm_48000`, `ulaw_8000`, `alaw_8000`, `opus_48000_32`, `opus_48000_64`, `opus_48000_96`, `opus_48000_128`, `opus_48000_192` | ティア要件がある音声出力形式。192 kbps MP3にはCreatorティア以上、44.1 kHz PCMにはProティア以上が必要です。値は`codec_sample_rate_bitrate`に従います。たとえば`mp3_22050_32`は22.05 kHzのMP3、32 kbsを指定します。Twilioの音声入力ではμ-lawが一般的に使用され、この形式はmu-lawとも表記され、u-lawと近似されることもあります。 |

## Example input

Required parameters only:

```json
{}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/elevenlabs/music?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/elevenlabs/music?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/elevenlabs/music", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "elevenlabs/music",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "elevenlabs/music",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 1800,
    "usd": "1.80",
    "charged": 1800,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "audio": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_name": "0-output.mp3",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "audio",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp3",
      "content_type": "audio/mpeg",
      "file_size": 1843200,
      "duration": 12,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `audio` | object {url, content_type, file_name, file_size} | MP3音声としてエンコードされた生成音楽ファイル。 |

## Related models

- [ElevenLabs Dubbing](https://doitong.com/developers/models/elevenlabs/dubbing.md) (`elevenlabs/dubbing`): $0.60 / minute of input file
- [Elevenlabs - Forced Alignment](https://doitong.com/developers/models/elevenlabs/forced-alignment.md) (`elevenlabs/forced-alignment`): $0.22 / hour of input audio
- [ElevenLabs Voice Changer](https://doitong.com/developers/models/elevenlabs/voice-changer.md) (`elevenlabs/voice-changer`): $0.30 / minute of input audio
- [MiniMax Music 3](https://doitong.com/developers/models/minimax/music-3.md) (`minimax/music-3`): $0.002 / second
- [Elevenlabs Music v2](https://doitong.com/developers/models/elevenlabs/music/v2.md) (`elevenlabs/music/v2`): $0.60 / minute of output audio
- [Elevenlabs Music v2.5](https://doitong.com/developers/models/elevenlabs/music/v2.5.md) (`elevenlabs/music/v2.5`): $0.60 / minute of output audio
- [ACE Step](https://doitong.com/developers/models/ace-step.md) (`ace-step`): $0.0002 / second
- [ACE Step Audio Inpaint](https://doitong.com/developers/models/ace-step/audio-inpaint.md) (`ace-step/audio-inpaint`): $0.0002 / second of input audio

## Links

- HTML page: https://doitong.com/developers/models/elevenlabs/music
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=elevenlabs/music
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/elevenlabs/music