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POST
/
v1
/
jobs
/
submit
Veo 3.1 (ECL) — 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>",
    "first_frame_url": "<string>",
    "last_frame_url": "<string>",
    "aspect_ratio": "<string>",
    "duration": "<string>",
    "has_sound": "<string>",
    "resolution": "<string>"
  }
}
'
{
  "jobId": "<string>",
  "status": "<string>",
  "estimatedCompletionTime": "<string>",
  "costMicroCents": 123
}

Documentation Index

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Generate seamless video transitions between two key frames with Google’s Veo 3.1 (ECL) variant. Provide a first frame, a last frame, and an optional text prompt to guide the in-between motion. Supports optional audio generation.
PropertyValue
ProviderGoogle
ModelVeo 3.1 (ECL)
CapabilityStart-End Frame to Video
Base Cost200,000 micro-cents/second ($0.20/sec)
Processing Time~85 seconds

​
Request Body

​
model
string
required
Model slug. Use google/veo-3.1-ecl/start-end-frame-to-video for start-end frame 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: 200,000 micro-cents per second ($0.20/sec) 
finalCost = baseCost × duration × has_sound
FactorOptionMultiplier
Duration44x
66x
88x
Soundfalse1x
true1.5x
Default cost: 4 seconds, no sound = 200,000 × 4 × 1 = 800,000 micro-cents ($0.80)

​
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": "google/veo-3.1-ecl/start-end-frame-to-video",
    "input": {
      "prompt": "A timelapse of clouds moving over mountains",
      "first_frame_url": "https://example.com/image.jpg",
      "last_frame_url": "https://example.com/image.jpg",
      "aspect_ratio": "16:9",
      "duration": "4",
      "has_sound": "false",
      "resolution": "720p"
    }
  }'