# Wan Text to Video API

> 2-15 সেকেন্ডের ক্লিপ, পাঁচটি অ্যাসপেক্ট রেশিও এবং ঐচ্ছিক ড্রাইভিং অডিওসহ text-to-video

সর্বোচ্চ 5000 অক্ষরের টেক্সট প্রম্পট থেকে একটি ভিডিও তৈরি করে। আউটপুট 720p বা 1080p, 16:9, 9:16, 1:1, 4:3 বা 3:4 অনুপাতে এবং 2 থেকে 15 সেকেন্ড দীর্ঘ হয়। ক্লিপ চালাতে আপনি `audio_url` (WAV বা MP3, 3-30s) দিতে পারেন; এটি না দিলে মডেল উপযুক্ত ব্যাকগ্রাউন্ড মিউজিক জেনারেট করে। নেগেটিভ প্রম্পট ও প্রম্পট এক্সপ্যানশন উপলভ্য।

- Model id: `wan/v2.7/text-to-video`
- Made by: Alibaba
- Category: Text to Video
- Output: video
- Price: from $0.10 / second (5 s ≈ $0.50) (cheapest run $0.50 (500 API credits))
- Run: `POST https://api.doitong.com/v1/run/wan/v2.7/text-to-video`
- Quote: `POST https://api.doitong.com/v1/quote/wan/v2.7/text-to-video`
- Docs page: https://doitong.com/bn/developers/models/wan/v2.7/text-to-video

## Pricing

Price: **from $0.10 / second (5 s ≈ $0.50)** (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 `resolution` = 1080p: $0.15 (150 API credits) / second

The full example input below costs $0.75 = 750 API credits (5 s × 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/wan/v2.7/text-to-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

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 |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | ≥ 1 characters | তৈরি করার ভিডিওর বর্ণনা, সর্বোচ্চ 5000 অক্ষর। |
| `audio_url` | `audio` | string (audio URL) \| null | no |  |  | ড্রাইভিং অডিওর জন্য ঐচ্ছিক URL, যা মডেল অন্যথায় স্বয়ংক্রিয়ভাবে জেনারেট করত এমন সংশ্লিষ্ট ব্যাকগ্রাউন্ড মিউজিক প্রতিস্থাপন করে। সরবরাহ করা ফাইলটি WAV বা MP3 হতে হবে, 3–30 সেকেন্ড দীর্ঘ হতে হবে এবং 15 MB-এর বেশি হওয়া যাবে না। |
| `aspect_ratio` |  | enum (string) | no | `16:9` | `16:9`, `9:16`, `1:1`, `4:3`, `3:4` | ফলাফল ভিডিওর অ্যাসপেক্ট রেশিও। |
| `resolution` |  | enum (string) | no | `1080p` | `720p`, `1080p` | ফলাফল ভিডিওর রেজোলিউশন স্তর। |
| `duration` |  | enum (integer) | no | `5` | `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15` | জেনারেট করা ভিডিওর দৈর্ঘ্য, সেকেন্ডে; 2 থেকে 15। |
| `negative_prompt` |  | string \| null | no |  |  | ভিডিওতে যা থাকা উচিত নয়, সর্বোচ্চ 500 অক্ষর। |
| `enable_prompt_expansion` |  | boolean | no | `true` |  | প্রম্পটের বুদ্ধিমান পুনর্লিখন সক্রিয় করে। |
| `seed` |  | integer \| null | no |  |  | পুনরুৎপাদনযোগ্য ফলাফলের জন্য এলোমেলো সিড; পরিসর 0 থেকে 2147483647। |
| `enable_safety_checker` |  | boolean | no | `true` |  | ইনপুট ও আউটপুট উভয়ের মডারেশন; অ্যাকাউন্টটি এটি নিষ্ক্রিয় করার অনুমোদনপ্রাপ্ত না হলে এবং অপশনটি বন্ধ না করা পর্যন্ত প্রতিটি রিকোয়েস্টে এটি প্রয়োগ করা হয়। |

File parameters (`audio`) 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
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

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/wan/v2.7/text-to-video?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/wan/v2.7/text-to-video?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/wan/v2.7/text-to-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": "wan/v2.7/text-to-video",
      "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": "wan/v2.7/text-to-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": 750,
    "usd": "0.75",
    "charged": 750,
    "refunded": 0
  },
  "input": {
    "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,
      "width": 1024,
      "height": 768,
      "fps": 1.0,
      "duration": 5,
      "num_frames": 1
    },
    "seed": 42,
    "actual_prompt": "string"
  },
  "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, width, height, fps, duration, num_frames} | জেনারেশনের মাধ্যমে তৈরি ভিডিও ফাইল। |
| `seed` | integer | জেনারেশনের সময় প্রয়োগ করা সিডের মান। |
| `actual_prompt` | string \| null | প্রম্পট rewriting চালু থাকলে বাস্তবে প্রয়োগ করা প্রম্পট। |

## Related models

- [Wan · v2.7 · Image to Video](https://doitong.com/developers/models/wan/v2.7/image-to-video.md) (`wan/v2.7/image-to-video`): from $0.10 / second
- [Wan 2.7 Reference to Video](https://doitong.com/developers/models/wan/v2.7/reference-to-video.md) (`wan/v2.7/reference-to-video`): $0.10 / second of output video
- [Wan · v2.7 · Edit Video](https://doitong.com/developers/models/wan/v2.7/edit-video.md) (`wan/v2.7/edit-video`): from $0.10 / second of output video
- [Wan 3.0 Text to Video](https://doitong.com/developers/models/alibaba/wan-3.0/text-to-video.md) (`alibaba/wan-3.0/text-to-video`): from $0.05 / second
- [FLUX 3 Max Text to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/text-to-video.md) (`blackforestlabs/flux-3-max/text-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Text to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/text-to-video.md) (`xai/grok-imagine-video/v1.5/text-to-video`): from $0.08 / second
- [Kling 3.0 Pro Text to Video](https://doitong.com/developers/models/kling-video/v3/pro/text-to-video.md) (`kling-video/v3/pro/text-to-video`): from $0.112 / second
- [LTX 2.5 Pro Text to Video](https://doitong.com/developers/models/lightricks/ltx-2.5/text-to-video/pro.md) (`lightricks/ltx-2.5/text-to-video/pro`): from $0.12 / second

## Links

- HTML page: https://doitong.com/developers/models/wan/v2.7/text-to-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=wan/v2.7/text-to-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/wan/v2.7/text-to-video