Kling 3.0 — 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>",
    "quality": "<string>",
    "duration": "<string>",
    "aspect_ratio": "<string>"
  }
}
'

import requests

url = "https://api.muvi.video/v1/jobs/submit"

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "start_frame_url": "<string>",
        "end_frame_url": "<string>",
        "quality": "<string>",
        "duration": "<string>",
        "aspect_ratio": "<string>"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: '<string>',
    input: {
      prompt: '<string>',
      start_frame_url: '<string>',
      end_frame_url: '<string>',
      quality: '<string>',
      duration: '<string>',
      aspect_ratio: '<string>'
    }
  })
};

fetch('https://api.muvi.video/v1/jobs/submit', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

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

POST

jobs

submit

Kling 3.0 — 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>",
    "quality": "<string>",
    "duration": "<string>",
    "aspect_ratio": "<string>"
  }
}
'

import requests

url = "https://api.muvi.video/v1/jobs/submit"

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "start_frame_url": "<string>",
        "end_frame_url": "<string>",
        "quality": "<string>",
        "duration": "<string>",
        "aspect_ratio": "<string>"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: '<string>',
    input: {
      prompt: '<string>',
      start_frame_url: '<string>',
      end_frame_url: '<string>',
      quality: '<string>',
      duration: '<string>',
      aspect_ratio: '<string>'
    }
  })
};

fetch('https://api.muvi.video/v1/jobs/submit', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

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

Generate a video that smoothly interpolates between a start frame and an end frame with Kling 3.0. Supports std/pro quality tiers and durations from 3 to 15 seconds.

Property	Value
Provider	Kling
Model	Kling 3.0
Capability	Start-End Frame to Video
Base Cost	80,000 micro-cents/second ($0.08/sec)
Processing Time	~240 seconds

Request Body

string

required

Model slug. Use kling/kling-i2v-frames-v3/start-end-frame-to-video.

object

required

Input parameters for start-end frame video generation.

Hide properties

string

required

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

string

required

URL of the start frame image.

string

required

URL of the end frame image.

string

Generation quality. Default: std. Options: std, pro.

string

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

string

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

string

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

Pricing

Base cost: 80,000 micro-cents per second ($0.08/sec)

finalCost = baseCost × duration × quality

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
Quality	`std`	1x
	`pro`	1.5x

Default cost: 5 seconds, std quality = 80,000 × 5 × 1 = 400,000 micro-cents ($0.40)

Response

string

Unique identifier for the submitted job.

string

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

string

ISO 8601 timestamp of the estimated completion time.

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-i2v-frames-v3/start-end-frame-to-video",
    "input": {
      "prompt": "The skyline transitions from sunrise to midday",
      "start_frame_url": "https://example.com/image.jpg",
      "end_frame_url": "https://example.com/image.jpg",
      "quality": "std",
      "duration": "5",
      "aspect_ratio": "16:9"
    }
  }'

import requests

response = requests.post(
    "https://api.muvi.video/v1/jobs/submit",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "model": "kling/kling-i2v-frames-v3/start-end-frame-to-video",
        "input": {
            "prompt": "The skyline transitions from sunrise to midday",
            "start_frame_url": "https://example.com/image.jpg",
            "end_frame_url": "https://example.com/image.jpg",
            "quality": "std",
            "duration": "5",
            "aspect_ratio": "16:9"
        }
    }
)

data = response.json()
print(data)

const response = await fetch("https://api.muvi.video/v1/jobs/submit", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    model: "kling/kling-i2v-frames-v3/start-end-frame-to-video",
    input: {
      prompt: "The skyline transitions from sunrise to midday",
      start_frame_url: "https://example.com/image.jpg",
      end_frame_url: "https://example.com/image.jpg",
      quality: "std",
      duration: "5",
      aspect_ratio: "16:9"
    }
  })
});

const data = await response.json();
console.log(data);

Google

OpenAI

Runway

Kling

Kling Plus

Alibaba

Alibaba Plus

ByteDance

ByteDance Plus

MiniMax Plus

xAI

Kling 3.0 — Start-End Frame to Video

Request Body

Pricing

Response

Code Examples

​Request Body

​Pricing

​Response

​Code Examples

Request Body

Pricing

Response

Code Examples