# Mureka 9.5 Lyrics Video API

> Vytváří lyrics video z vygenerované nebo nahrané písně se sedmi rozvrženími a čtyřmi poměry stran

Vytváří lyrics video buď z `song_id`, nebo z `upload_audio_id`; zadejte přesně jeden z nich. Zvolte `aspect_ratio` (16:9, 9:16, 3:4 nebo 4:3) a jednu ze sedmi šablon `layout` a případně přidejte `title`, `background_id` nebo `cover_url`. Chcete-li použít jen část písně, vyberte řádky textu, nebo časový rozsah v milisekundách, nikoli obojí.

- Model id: `mureka/api/generate/lyrics-video`
- Made by: Mureka
- Category: Lipsync & Avatars
- Output: video
- Price: $0.15 / video (cheapest run $0.15 (150 API credits))
- Run: `POST https://api.doitong.com/v1/run/mureka/api/generate/lyrics-video`
- Quote: `POST https://api.doitong.com/v1/quote/mureka/api/generate/lyrics-video`
- Docs page: https://doitong.com/cs/developers/models/mureka/api/generate/lyrics-video

## Pricing

Price: **$0.15 / video**. Billed once per generated video.

The full example input below costs $0.15 = 150 API credits (1 video × 150 API credits).

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/mureka/api/generate/lyrics-video` 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 |
|---|---|---|---|---|---|---|
| `song_id` |  | string \| null | no |  | ≥ 1 characters | Identifikátor vygenerovaného zvuku zadaný jako song_id místo upload_audio_id; je vyžadováno právě jedno. Jeho hodnotu převezměte z song_id v odpovědi pro skladbu nebo instrumentální hudbu. |
| `upload_audio_id` |  | string \| null | no |  | ≥ 1 characters | Identifikátor nahraného zvuku zadaný jako upload_audio_id místo song_id; je vyžadováno právě jedno. Získejte jej přes /files/upload s purpose='audio'. |
| `background_id` |  | string \| null | no |  | ≥ 1 characters | Identifikátor obrázku pozadí získaný z /files/upload s použitím purpose='lyrics-video'. |
| `cover_url` |  | string \| null | no |  |  | Volitelný titulní obrázek, nedostupný pro layout_1. Zadejte JPG, PNG nebo WebP pomocí datové URI nebo veřejně dostupné HTTPS URL. |
| `title` |  | string \| null | no |  | ≥ 1 characters | Volitelný název zobrazený ve videu s textem písně. |
| `aspect_ratio` |  | enum (string) | no | `9:16` | `16:9`, `9:16`, `3:4`, `4:3` | Poměr stran vygenerovaného videa. |
| `layout` |  | enum (string) | no | `layout_1` | `layout_1`, `layout_2`, `layout_3`, `layout_4`, `layout_5`, `layout_6`, `layout_7` | Šablona definující vizuální rozvržení videa s textem písně. |
| `lyrics_start_row` |  | integer \| null | no |  | ≥ 1 | První zahrnutý řádek textu písně pro výběr podle řádků, který vyžaduje lyrics_end_row a vylučuje výběr podle času. Číslování řádků začíná hodnotou 1. |
| `lyrics_end_row` |  | integer \| null | no |  | ≥ 1 | Poslední zahrnutý řádek textu písně pro výběr podle řádků definovaný společně s lyrics_start_row namísto výběru podle času. |
| `selection_start` |  | integer \| null | no |  | ≥ 0 | Hranice rozsahu zvuku, která vyžaduje selection_end a vylučuje výběr řádků textu písně. Určuje začátek zahrnutého zvuku měřený v milisekundách. |
| `selection_end` |  | integer \| null | no |  | ≥ 0 | Hranice zvuku, která vyžaduje selection_start a vylučuje výběr řádku textu. Určuje, kde zahrnutý zvuk končí, měřeno v milisekundách. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Kontrolu lze uvolnit nastavením na false, pokud je volající autorizován. |

## Example input

Required parameters only:

```json
{}
```

A fuller example:

```json
{}
```

## 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/mureka/api/generate/lyrics-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

# 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/mureka/api/generate/lyrics-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({}),
});
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 = {}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/mureka/api/generate/lyrics-video", 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": "mureka/api/generate/lyrics-video",
      "input": {},
      "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": "mureka/api/generate/lyrics-video",
  "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": 150,
    "usd": "0.15",
    "charged": 150,
    "refunded": 0
  },
  "input": {},
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "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 |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Video soubor vytvořený generováním. |

## Related models

- [Mureka 9.5 Instrumental Generation](https://doitong.com/developers/models/mureka/api/generate/instrumental.md) (`mureka/api/generate/instrumental`): from $0.045 / request
- [Mureka 9.5 Song Generation](https://doitong.com/developers/models/mureka/api/generate/song.md) (`mureka/api/generate/song`): from $0.45 / run
- [Mureka 9.5 Podcast Generation](https://doitong.com/developers/models/mureka/api/generate/podcast.md) (`mureka/api/generate/podcast`): $0.019 / run
- [Mureka 9.5 Lyrics Generation](https://doitong.com/developers/models/mureka/api/generate/lyrics.md) (`mureka/api/generate/lyrics`): $0.0135 / request
- [Kling AI Avatar 2.0 Pro](https://doitong.com/developers/models/kling-video/ai-avatar/v2/pro.md) (`kling-video/ai-avatar/v2/pro`): $0.115 / second of input audio
- [Sync Lipsync 3](https://doitong.com/developers/models/sync-lipsync/v3.md) (`sync-lipsync/v3`): $8.00 / minute of output video
- [VEED Fabric 1.0](https://doitong.com/developers/models/veed/fabric-1.0.md) (`veed/fabric-1.0`): from $0.08 / second of input audio
- [AI Avatar Multi](https://doitong.com/developers/models/ai-avatar/multi.md) (`ai-avatar/multi`): from $0.20 / second of output video

## Links

- HTML page: https://doitong.com/developers/models/mureka/api/generate/lyrics-video
- 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=mureka/api/generate/lyrics-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/mureka/api/generate/lyrics-video