curl --request POST \
  --url https://api.powertokens.ai/v1/videos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "wan2.7-i2v",
  "prompt": "A cat walking from one end of the hallway to the other.",
  "media": [
    {
      "type": "first_frame",
      "url": "https://example.com/assets/start.png"
    },
    {
      "type": "last_frame",
      "url": "https://example.com/assets/end.png"
    }
  ],
  "seconds": "5",
  "size": "1080P"
}
'

{
  "id": "<string>",
  "task_id": "<string>",
  "object": "video",
  "model": "<string>",
  "progress": 123,
  "created_at": 123
}

{
  "error": {
    "message": "unsupported wan2.7-i2v media combination",
    "type": "invalid_request_error",
    "code": "invalid_request"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

Alibaba

Wan 2.7 First-Last Frame to Video

Submit an asynchronous Ali wan2.7-i2v first-and-last-frame video generation task.

Use first_frame to specify the start frame, last_frame to specify the end frame, optionally paired with driving_audio for audio-driven generation.

Supported media combinations:

first_frame + last_frame
first_frame + last_frame + driving_audio

The prompt field is optional for this capability. size only supports 720P and 1080P. seconds only supports integer strings from 2 to 15. Also supports official fields negative_prompt, prompt_extend, watermark, and seed.

POST

videos

curl --request POST \
  --url https://api.powertokens.ai/v1/videos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "wan2.7-i2v",
  "prompt": "A cat walking from one end of the hallway to the other.",
  "media": [
    {
      "type": "first_frame",
      "url": "https://example.com/assets/start.png"
    },
    {
      "type": "last_frame",
      "url": "https://example.com/assets/end.png"
    }
  ],
  "seconds": "5",
  "size": "1080P"
}
'

{
  "id": "<string>",
  "task_id": "<string>",
  "object": "video",
  "model": "<string>",
  "progress": 123,
  "created_at": 123
}

{
  "error": {
    "message": "unsupported wan2.7-i2v media combination",
    "type": "invalid_request_error",
    "code": "invalid_request"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

Authorizations

Authorization

string

header

required

Pass Authorization: Bearer <token> in the request header.

Body

application/json

model

enum<string>

required

Model name. Available value: wan2.7-i2v.

Available options:

wan2.7-i2v

media

object[]

required

List of media assets (images, audio) for video generation. Each element is a media object with type and url.

Supported combinations (invalid combinations will return an error):

First & last frame: first_frame + last_frame
First & last frame + audio: first_frame + last_frame + driving_audio

Each type can appear at most once in the array.

Show child attributes

prompt

string

Text prompt describing the desired video content and visual characteristics. Supports Chinese and English, up to 5000 characters (each character or letter counts as one). Excess characters will be automatically truncated.

size

enum<string>

default:1080P

Specifies the output resolution tier for controlling video clarity (total pixels).

The model automatically scales to a similar total pixel count based on the selected resolution tier. The video aspect ratio will attempt to stay consistent with the input material (first frame or first clip).

Available options:

720P,

1080P

seconds

enum<string>

default:5

Video duration as a string. Supports integer strings from 2 to 15.

Available options:

2,

3,

4,

5,

6,

7,

8,

9,

10,

11,

12,

13,

14,

15

negative_prompt

string

Negative prompt describing content you do not want in the video. Supports Chinese and English, up to 500 characters. Excess characters will be automatically truncated. Example: low resolution, worst quality, deformed, extra fingers, bad proportions.

prompt_extend

boolean

Whether to enable intelligent prompt rewriting. When enabled, a large language model rewrites the input prompt intelligently, significantly improving results for short prompts but increasing processing time. true (default): enable. false: disable.

watermark

boolean

default:false

Whether to add a watermark. The watermark is positioned at the bottom-right corner with the text 'AI生成'. false (default): no watermark. true: add watermark.

seed

integer

Random seed, range [0, 2147483647]. When unspecified, the system auto-generates a random seed. For better reproducibility, set a fixed seed. Note: due to the probabilistic nature of model generation, the same seed does not guarantee identical results every time.

Required range: 0 <= x <= 2147483647

Response

Submitted successfully. Returns an OpenAI-compatible video task object.

string

Public task ID.

task_id

string

Backward-compatible alias for the public task ID.

object

string

Example:

"video"

model

string

Model name.

status

enum<string>

Unified video task status.

Available options:

queued,

in_progress,

completed,

failed,

unknown

progress

integer

Task progress percentage.

created_at

integer<int64>

Creation time as a Unix timestamp (seconds).

Wan 2.7 Image to Video

Wan 2.7 Video Continuation

Chat Models

Image Models

Video Models

Audio Models

asset library

Wan 2.7 First-Last Frame to Video

Authorizations

Body

Response