Generate video

POST

https://api.key4u.vn/alibailian/api/v1/services/aigc/video-generation/video-synthesis

Unified creation entry for asynchronous video synthesis tasks such as Wan image-to-video/text-to-video and HappyHorse video editing, distinguished by model:

Wan image-to-video models (e.g. wan2.5-i2v-preview): input.img_url (first-frame image) and input.prompt are required.

happyhorse-1.0-video-edit: input.media is required (1 video + 0-5 reference images).

Returns output.task_id; poll GET /alibailian/api/v1/tasks/{task_id} for the result.

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Body Params application/jsonRequired

Examples

Responses

🟢200

application/json

Bodyapplication/json

🟠400Bad request or validation failed

🟠401Missing or invalid API Key

Request Example

Shell

JavaScript

Java

Swift

cURL

happyhorse_1_0_video_editwan2_5_i2v_preview

curl --location 'https://api.key4u.vn/alibailian/api/v1/services/aigc/video-generation/video-synthesis' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "input": {
    "media": [
      {
        "type": "video",
        "url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260409/dozxak/Wan_Video_Edit_33_1.mp4"
      },
      {
        "type": "reference_image",
        "url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260415/hynnff/wan-video-edit-clothes.webp"
      }
    ],
    "prompt": "Dress the horse-headed humanoid character in the video in the striped sweater shown in the image."
  },
  "model": "happyhorse-1.0-video-edit",
  "parameters": {
    "resolution": "720P"
  }
}'

Response Example

200 - example

{
  "output": {
    "task_id": "86438901-c911-4bfa-9137-621478c85efd",
    "task_status": "PENDING"
  },
  "request_id": "1445f928-f1b6-9c43-8143-bfaddb5989cf"
}

Modified at 2026-10-13 12:32:40

Create a role

Video query