Wan first-last-frame image to video

For Wan first-and-last-frame video models. After submission, query task status with GET /v1/videos/{task_id}.

Public fields: model, images, prompt, seconds, size, prompt_extend, watermark, seed, and negative_prompt. images must contain exactly 2 items in order: images[0] is the first frame and images[1] is the last frame. The first frame sets the base composition, and the last frame guides the ending shot.

POST /v1/videos

cURL

first_last_frame_video

curl --request POST \ --url https://baze-api.powerbuyin.top/v1/videos \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data ' { "model": "wan2.2-kf2v-flash", "images": [ "https://example.com/first-frame.png", "https://example.com/last-frame.png" ], "prompt": "Realistic style, a black kitten curiously looking at the sky, camera moving up from eye level to top-down", "seconds": "5", "size": "720P", "prompt_extend": true } '

200

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

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

model · enum<string> · required

Wanxiang first-and-last-frame-to-video model.

Available options: wan2.2-kf2v-flash, wan2.1-kf2v-plus

images · string[] · required

Array of first-frame and last-frame image URLs. Exactly 2 items are required in order: images[0] is the first frame and images[1] is the last frame. Output video aspect ratio follows the first frame, and the last frame is cropped to match it.

Required array length: 2 elements

prompt · string

Text prompt describing transition from first to last frame. Supports Chinese and English, max 800 characters.

seconds · string · default: 5

String form of the video duration in seconds. Currently fixed at "5".

size · enum<string> · default: 720P

Video resolution. wan2.2-kf2v-flash supports 480P/720P/1080P, wan2.1-kf2v-plus supports 720P only.

Available options: 480P, 720P, 1080P

prompt_extend · boolean · default: true

Whether to enable prompt intelligent rewriting.

watermark · boolean · default: false

Whether to add watermark to video.

seed · integer

Random seed, range [0, 2147483647].

negative_prompt · string

Negative prompt describing content to avoid. Max 500 characters.

Response

200

application/json

Submission successful, returns video task object.

id · string

task_id · string

object · string

Example:

"video"

model · string

status · enum<string>

Available options: pending, queued, running, succeeded, failed, cancelled

progress · integer

created_at · integer<int64>