Kling 3.0 Standard — Start-End Frame to Video

Generate videos from start and end frame images using Kling 3.0 Standard model

POST /v1/jobs/submit

Kling 3.0 Standard — Start-End Frame to Video

cURL

curl --request POST \
  --url https://api.muvi.video/v1/jobs/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "input": {
    "prompt": "<string>",
    "start_frame_url": "<string>",
    "end_frame_url": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>",
    "has_sound": "<string>"
  }
}
'

200

{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

Generate high-quality videos from start and end frame images with Kling 3.0 Standard. The model interpolates between the two frames to create smooth video transitions with optional audio generation.

Property	Value
Provider	Kling
Model	Kling 3.0 Standard
Capability	Start-End Frame to Video
Base Cost	84,000 micro-cents/second ($0.084/sec)
Processing Time	~240 seconds

Request Body

model · string · required

Model slug. Use kling/kling-3.0-standard/start-end-frame-to-video for start-end-frame-to-video generation.

input · object · required

Input parameters for start-end-frame-to-video generation.

Hide properties

prompt · string · required

Text description of the video to generate (max 2500 characters).

start_frame_url · string · required

URL of the start frame image.

end_frame_url · string · required

URL of the end frame image.

aspect_ratio · string

Video aspect ratio. Default: 16:9. Options: 16:9, 9:16, 1:1.

duration · string

Video duration in seconds. Default: 5. Options: 5, 10, 15.

has_sound · string

Enable audio generation. Default: false. Options: true, false.

webhookUrl · string

HTTPS URL to receive a webhook notification when the job completes or fails.

Pricing

Base cost: 84,000 micro-cents per second ($0.084/sec)

finalCost = baseCost × duration × has_sound

Factor	Option	Multiplier
Duration	5	5x
	10	10x
	15	15x
Sound	false	1x
	true	1.5x

Default cost: 5 seconds, no sound = 84,000 × 5 × 1 = 420,000 micro-cents ($0.42)

Response

jobId · string

Unique identifier for the submitted job.

status · string

Initial job status. Always "pending" on successful submission.

estimatedCompletionTime · string

ISO 8601 timestamp of the estimated completion time.

costMicroCents · number

The cost of the job in micro-cents.

Code Examples

cURL

curl -X POST https://api.muvi.video/v1/jobs/submit \
  -H "Authorization: Bearer $PIXELBYTE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling/kling-3.0-standard/start-end-frame-to-video",
    "input": {
      "prompt": "A smooth transition from day to night in a city skyline",
      "start_frame_url": "https://example.com/day-skyline.jpg",
      "end_frame_url": "https://example.com/night-skyline.jpg",
      "aspect_ratio": "16:9",
      "duration": "5",
      "has_sound": "false"
    }
  }'