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POST
/
v1
/
jobs
/
submit
Kling 3.0 Pro — Start-End Frame to Video
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>"
  }
}
'
{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}
Generate high-quality videos from start and end frame images with Kling 3.0 Pro. The model interpolates between the two frames to create smooth video transitions with optional audio generation.
PropertyValue
ProviderKling
ModelKling 3.0 Pro
CapabilityStart-End Frame to Video
Base Cost112,000 micro-cents/second ($0.112/sec)
Processing Time~240 seconds

​
Request Body

​
model
string
required
Model slug. Use kling/kling-3.0-pro/start-end-frame-to-video for start-end-frame-to-video generation.
​
input
object
required
Input parameters for start-end-frame-to-video generation.
​
webhookUrl
string
HTTPS URL to receive a webhook notification when the job completes or fails.

​
Pricing

Base cost: 112,000 micro-cents per second ($0.112/sec) 
finalCost = baseCost × duration × has_sound
FactorOptionMultiplier
Duration55x
1010x
1515x
Soundfalse1x
true1.5x
Default cost: 5 seconds, no sound = 112,000 × 5 × 1 = 560,000 micro-cents ($0.56)

​
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 -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-pro/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"
    }
  }'