Kling O3 Standard — Start-End Frame to Video

Generate videos with the Kling O3 Standard model using start-end frame to video.

POST /v1/jobs/submit

Kling O3 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>",
    "duration": "<string>",
    "has_sound": "<string>",
    "shot_type": "<string>",
    "multishot": [
      {}
    ]
  }
}
'

200

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

Generate a video that smoothly transitions between two frames using the Kling O3 Standard model. Provide start and end frame URLs.

Property	Value
Provider	Kling Plus
Model	Kling O3 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-plus/kling-o3-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

Text prompt describing the desired output (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.

duration · string

Video duration in seconds. Default: 5. Options: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

has_sound · string

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

shot_type · string

Shot composition mode. Default: customize. Options: customize, intelligent.

multishot · array

Multi-shot scene list. Each shot has a prompt and optional duration (seconds, 1-15). Total durations should sum within the model’s allowed range.

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	3	3x
	4	4x
	5	5x
	6	6x
	7	7x
	8	8x
	9	9x
	10	10x
	11	11x
	12	12x
	13	13x
	14	14x
	15	15x
Sound	false	1x
	true	1.5x

Default cost: 5 seconds, no sound = 84,000 × 5 × 1 = 420,000 micro-cents ($0.420)

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-plus/kling-o3-standard/start-end-frame-to-video",
    "input": {
      "prompt": "Smooth cinematic transition from a sunrise mountain peak to a starry night sky",
      "start_frame_url": "https://example.com/start-frame.jpg",
      "end_frame_url": "https://example.com/end-frame.jpg",
      "duration": "5",
      "has_sound": "false"
    }
  }'