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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>",
    "duration": "<string>",
    "has_sound": "<string>",
    "start_frame_url": "<string>",
    "end_frame_url": "<string>",
    "cfg_scale": 123,
    "negative_prompt": "<string>",
    "shot_type": "<string>"
  }
}
'
{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

Documentation Index

Fetch the complete documentation index at: https://developer.pixelbyte.app/docs/llms.txt

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Generate a smooth video transition between a start frame and end frame using Kling 3.0 Pro.
PropertyValue
ProviderKling Plus
ModelKling 3.0 Pro
CapabilityStart-End Frame to Video
Base Cost112,000 micro-cents/second ($0.112/second)
Processing Time~240 seconds

​
Request Body

​
model
string
required
Model slug. Use kling-plus/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/second) 
finalCost = baseCost × has_sound × duration
FactorOptionMultiplier
Has Soundtrue1.5x
false1x
Duration33x
44x
55x
66x
77x
88x
99x
1010x
1111x
1212x
1313x
1414x
1515x
Default cost (has_sound=true, duration=5): 112,000 × 1.5 × 5 = 840,000 micro-cents ($0.84)

​
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-plus/kling-3.0-pro/start-end-frame-to-video",
    "input": {
      "start_frame_url": "https://example.com/start.jpg",
      "end_frame_url": "https://example.com/end.jpg",
      "prompt": "Smooth cinematic transition with natural camera movement.",
      "duration": "5",
      "has_sound": "true"
    }
  }'