# PixVerse V6 Extend API

> Huendeleza video iliyopo kwa sekunde 1 hadi 15, ikifuata kidokezo kinachoeleza kinachotokea baadaye

Huchukua klipu chanzo kupitia `video_url` pamoja na `prompt` inayohitajika kueleza jinsi ya kuirefusha. `duration` ni nambari kamili kutoka 1 hadi 15 sekunde, na mwonekano unaweza kuwa 360p, 540p, 720p au 1080p. Unaweza pia kuweka `negative_prompt`, mipangilio ya `style`, `seed` na kuwezesha sauti inayozalishwa.

- Model id: `pixverse/v6/extend`
- Made by: PixVerse
- Category: Video to Video
- Output: video
- Price: from $0.025 / second (5 s ≈ $0.125) (cheapest run $0.125 (125 API credits))
- Run: `POST https://api.doitong.com/v1/run/pixverse/v6/extend`
- Quote: `POST https://api.doitong.com/v1/quote/pixverse/v6/extend`
- Docs page: https://doitong.com/sw/developers/models/pixverse/v6/extend

## Pricing

Price: **from $0.025 / second (5 s ≈ $0.125)** (the lowest tier; the quote prices your exact input). Billed per second of output (`duration`, default 15).

Price rules (the first rule that matches the input wins; a parameter you leave out counts as its default):

- When `generate_audio_switch` = true and `resolution` = 360p: $0.035 (35 API credits) / second
- When `resolution` = 360p: $0.025 (25 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 540p: $0.045 (45 API credits) / second
- When `resolution` = 540p: $0.035 (35 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 720p: $0.06 (60 API credits) / second
- When `resolution` = 720p: $0.045 (45 API credits) / second
- When `generate_audio_switch` = true and `resolution` = 1080p: $0.115 (115 API credits) / second
- When `resolution` = 1080p: $0.09 (90 API credits) / second

The full example input below costs $0.225 = 225 API credits (5 s × 45 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/pixverse/v6/extend` 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 inayoelekeza kwenye video inayopanuliwa. |
| `prompt` |  | string | yes |  |  | Maelekezo ya upanuzi wa video yenye kikomo cha urefu kinachopimwa kwa baiti: hata maandishi mafupi kwa kuonekana yanaweza kukizidi kwa sababu emoji, herufi zenye alama za matamshi na herufi zisizo za Kilatini hutumia baiti nyingi. Kikomo cha juu ni baiti 2048, kinachopimwa kwa UTF-8, si idadi ya herufi. |
| `negative_prompt` |  | string | no | `` |  | Kidokezo hasi cha uzalishaji chenye kikomo cha urefu kinachopimwa kwa baiti: hata maandishi mafupi kwa kuonekana yanaweza kukizidi kwa sababu emoji, herufi zenye alama za matamshi na herufi zisizo za Kilatini hutumia baiti nyingi. Kikomo cha juu ni baiti 2048, kinachopimwa kwa UTF-8, si idadi ya herufi. |
| `style` |  | enum (string) \| null | no |  | `anime`, `3d_animation`, `clay`, `comic`, `cyberpunk` | Mtindo wa kuona wa upanuzi wa video. |
| `resolution` |  | enum (string) | no | `720p` | `360p`, `540p`, `720p`, `1080p` | Mwonekano wa video ya tokeo. |
| `duration` |  | integer | no | `5` | 1 – 15 | Urefu wa video ya kuzalisha, unaopimwa kwa sekunde; kwa v6, kiwango kinachotumika ni sekunde 1–15. |
| `seed` |  | integer \| null | no |  |  | Mbegu inayodhibiti nasibu wakati wa uzalishaji. |
| `generate_audio_switch` | `generate_audio` | boolean | no | `false` |  | Kigeuza uzalishaji wa sauti kwa muziki wa mandharinyuma, madoido ya sauti na mazungumzo. |

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

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
  "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/pixverse/v6/extend?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",
    "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/pixverse/v6/extend?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "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 = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "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/pixverse/v6/extend", 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": "pixverse/v6/extend",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
        "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": "pixverse/v6/extend",
  "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": 225,
    "usd": "0.225",
    "charged": 225,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "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 iliyotolewa kwa kupanua ingizo. |

## Related models

- [PixVerse V6 Text To Video](https://doitong.com/developers/models/pixverse/v6/text-to-video.md) (`pixverse/v6/text-to-video`): from $0.025 / second
- [PixVerse V6 Image To Video](https://doitong.com/developers/models/pixverse/v6/image-to-video.md) (`pixverse/v6/image-to-video`): from $0.025 / second
- [PixVerse V6 Transition](https://doitong.com/developers/models/pixverse/v6/transition.md) (`pixverse/v6/transition`): from $0.025 / second
- [PixVerse Extend](https://doitong.com/developers/models/pixverse/extend.md) (`pixverse/extend`): from $0.15 / run
- [PixVerse Extend Fast](https://doitong.com/developers/models/pixverse/extend/fast.md) (`pixverse/extend/fast`): from $0.30 / run
- [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/pixverse/v6/extend
- 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=pixverse/v6/extend
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/pixverse/v6/extend