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POST
/
v1
/
videos
/
generations
Grok Imagine Video Extension
curl --request POST \
  --url https://api.foxapi.cc/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "grok-imagine-video-extension",
  "prompt": "The camera slowly zooms out to reveal the city skyline at sunset",
  "video_url": "https://example.com/input-video.mp4",
  "duration": 6
}
'
{
  "created": 1757165031,
  "id": "task-unified-1757165031-uyujaw3d",
  "model": "<string>",
  "object": "video.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 45
  },
  "type": "video"
}

Authorizations

​
Authorization
string
header
required

All APIs require Bearer Token authentication

Add to request header:

Authorization: Bearer YOUR_API_KEY

Body

application/json
​
model
string
default:grok-imagine-video-extension
required

grok-imagine-video-extension: Generates continuation clips based on existing videos

​
prompt
string
required

Text prompt describing what should happen next in the video

Notes:

  • Supports both Chinese and English
  • Recommended to describe camera continuation, action progression, or scene transitions
Example:

"The camera slowly zooms out to reveal the city skyline at sunset"

​
video_url
string
required

Public URL of the input video

Notes:

  • Must be a publicly accessible MP4 URL
  • Input video duration must be between 2 - 15 seconds
Example:

"https://example.com/input-video.mp4"

​
duration
integer | null

Extension clip duration in seconds

Notes:

  • Range: 2 - 10
  • Defaults to 6 seconds upstream when not specified
Example:

2

Response

Task created successfully

​
created
integer

Task creation timestamp

Example:

1757165031

​
id
string

Task ID

Example:

"task-unified-1757165031-uyujaw3d"

​
model
string

Actual model name used

​
object
enum<string>

Specific task type

Available options:
video.generation.task
​
progress
integer

Task progress percentage (0-100)

Required range: 0 <= x <= 100
Example:

0

​
status
enum<string>

Task status

Available options:
pending,
processing,
completed,
failed
Example:

"pending"

​
task_info
object

Asynchronous task information

​
type
enum<string>

Task output type

Available options:
video
Example:

"video"