# Sonilo V1.1 Video to Video Music API

> Devolve o vídeo de entrada com uma faixa musical gerada misturada, com preservação opcional da fala

Processa um vídeo e entrega ficheiros mp4 finais com música adicionada. `prompt` e `prompt_influence` opcionais (0 a 1) orientam o estilo. `keep_speech_vocal` mantém a fala original sobre a música, que é reduzida durante a fala. `start_offset` e `duration` limitam o processamento a um segmento de até 600 segundos, e `num_samples` produz 1 a 3 vídeos.

- Model id: `sonilo/v1.1/video-to-video-music`
- Made by: Sonilo
- Category: Video to Video
- Output: video
- Price per second of your output audio: $0.009 / second of output audio (cheapest run $0.009 (9 API credits))
- Run: `POST https://api.doitong.ru/v1/run/sonilo/v1.1/video-to-video-music`
- Quote: `POST https://api.doitong.ru/v1/quote/sonilo/v1.1/video-to-video-music`
- Docs page: https://doitong.com/pt-PT/developers/models/sonilo/v1.1/video-to-video-music

## Pricing

Price: **$0.009 / second of output audio**. Price per second 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 $0.09 = 90 API credits (10 s output audio × $0.009).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/sonilo/v1.1/video-to-video-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

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | URL HTTP ou HTTPS publicamente acessível do vídeo que irá receber uma banda sonora musical. |
| `keep_speech_vocal` |  | boolean | no | `false` |  | Retenção de fala/vocais no vídeo de saída, desativada por predefinição para que a música gerada substitua totalmente a banda sonora original. Ao ativá-la, usa separação de fontes musicais para extrair apenas os vocais e misturá-los com a música gerada; o ducking automático reduz essa música durante a fala. |
| `num_samples` |  | integer | no | `1` | 1 – 3 | Número de vídeos diferentes com bandas sonoras geradas a produzir. |
| `prompt` |  | string \| null | no |  |  | Orientação de estilo musical que, opcionalmente, substitui o prompt derivado automaticamente do vídeo. |
| `prompt_influence` |  | number | no | `0.5` | 0 – 1 | Intensidade de aderência ao prompt; aumente-a para obter uma correspondência mais próxima da instrução de texto. |
| `start_offset` |  | number \| null | no |  | 0 – 600 | Deslocamento opcional de pontuação, medido em segundos desde o início do vídeo; a parte iniciada nesse ponto tem de caber no vídeo, pelo que Start Offset mais Duration não pode exceder Video Duration. |
| `duration` |  | number \| null | no |  | 1 – 600 | Duração opcional da pontuação em segundos; a predefinição None continua a pontuação pelo vídeo restante. Quer seja fornecida ou omitida uma duração, a pontuação começa em Start Offset quando fornecido, caso contrário no início. |

File parameters (`video`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## 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.ru/v1/run/sonilo/v1.1/video-to-video-music?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.ru/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/sonilo/v1.1/video-to-video-music?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
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.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/sonilo/v1.1/video-to-video-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.ru/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": "sonilo/v1.1/video-to-video-music",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "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": "sonilo/v1.1/video-to-video-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": 90,
    "usd": "0.09",
    "charged": 90,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "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
    },
    "videos": [
      {
        "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.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Primeiro resultado de vídeo, combinando o vídeo de origem e a música gerada num único ficheiro. |
| `videos` | array of object {url, content_type, file_name, file_size} | Coleção completa de vídeos mp4 pontuados, com um para cada amostra. |

## Related models

- [Sonilo V1.1 Text to Music](https://doitong.com/developers/models/sonilo/v1.1/text-to-music.md) (`sonilo/v1.1/text-to-music`): $0.0025 / second of output audio
- [Sonilo V1.1 Text to Sound Effects](https://doitong.com/developers/models/sonilo/v1.1/text-to-sound-effects.md) (`sonilo/v1.1/text-to-sound-effects`): $0.0018 / second of output audio
- [Sonilo V1.1](https://doitong.com/developers/models/sonilo/v1.1/video-to-music.md) (`sonilo/v1.1/video-to-music`): $0.009 / second of output audio
- [Sonilo V1.1 Video to Sound Effects](https://doitong.com/developers/models/sonilo/v1.1/video-to-sound-effects.md) (`sonilo/v1.1/video-to-sound-effects`): $0.009 / second of input video
- [Sonilo V1.1 Video to Video Sound Effects](https://doitong.com/developers/models/sonilo/v1.1/video-to-video-sound-effects.md) (`sonilo/v1.1/video-to-video-sound-effects`): $0.009 / second of input video
- [AMT Interpolation](https://doitong.com/developers/models/amt-interpolation.md) (`amt-interpolation`): $0.000575 / second of processing time
- [AnimateDiff Turbo · Video to Video](https://doitong.com/developers/models/fast-animatediff/turbo/video-to-video.md) (`fast-animatediff/turbo/video-to-video`): $0.00125 / second of processing time
- [AnimateDiff · Video to Video](https://doitong.com/developers/models/fast-animatediff/video-to-video.md) (`fast-animatediff/video-to-video`): $0.00125 / second of processing time

## Links

- HTML page: https://doitong.com/developers/models/sonilo/v1.1/video-to-video-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=sonilo/v1.1/video-to-video-music
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/sonilo/v1.1/video-to-video-music