Kling I2V Frames V2.5 — 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>",
    "image_url": "<string>",
    "end_image_url": "<string>",
    "quality": "<string>",
    "duration": "<string>",
    "aspect_ratio": "<string>",
    "seed": 123
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "image_url": "<string>",
        "end_image_url": "<string>",
        "quality": "<string>",
        "duration": "<string>",
        "aspect_ratio": "<string>",
        "seed": 123
    }
}
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>',
      image_url: '<string>',
      end_image_url: '<string>',
      quality: '<string>',
      duration: '<string>',
      aspect_ratio: '<string>',
      seed: 123
    }
  })
};

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 I2V Frames V2.5 — 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>",
    "image_url": "<string>",
    "end_image_url": "<string>",
    "quality": "<string>",
    "duration": "<string>",
    "aspect_ratio": "<string>",
    "seed": 123
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "image_url": "<string>",
        "end_image_url": "<string>",
        "quality": "<string>",
        "duration": "<string>",
        "aspect_ratio": "<string>",
        "seed": 123
    }
}
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>',
      image_url: '<string>',
      end_image_url: '<string>',
      quality: '<string>',
      duration: '<string>',
      aspect_ratio: '<string>',
      seed: 123
    }
  })
};

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 smooth video that transitions from a start frame to an end frame with Kling I2V Frames V2.5. Ideal for controlled keyframe animation, morphing transitions, and product shots.

Property	Value
Provider	Kling
Model	Kling I2V Frames V2.5
Capability	Start-End Frame to Video
Base Cost	50,000 micro-cents/second ($0.05/sec)
Processing Time	~240 seconds

Request Body

string

required

Model slug. Use kling/kling-i2v-frames-v25/start-end-frame-to-video.

object

required

Input parameters for start-end frame video generation.

Hide properties

string

Text description guiding the transition (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: 5, 10.

string

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

integer

Optional random seed for reproducible results.

string

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

Pricing

Base cost: 50,000 micro-cents per second ($0.05/sec)

finalCost = baseCost × quality × duration

Factor	Option	Multiplier
Quality	`std`	1x
	`pro`	1.5x
Duration	`5`	5x
	`10`	10x

Default cost: std quality, 5 seconds = 50,000 × 1 × 5 = 250,000 micro-cents ($0.25)

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-v25/start-end-frame-to-video",
    "input": {
      "prompt": "A flower blooms from bud to full blossom",
      "image_url": "https://example.com/image.jpg",
      "end_image_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-v25/start-end-frame-to-video",
        "input": {
            "prompt": "A flower blooms from bud to full blossom",
            "image_url": "https://example.com/image.jpg",
            "end_image_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-v25/start-end-frame-to-video",
    input: {
      prompt: "A flower blooms from bud to full blossom",
      image_url: "https://example.com/image.jpg",
      end_image_url: "https://example.com/image.jpg",
      quality: "std",
      duration: "5",
      aspect_ratio: "16:9"
    }
  })
});

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

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Kling I2V Frames V2.5 — Start-End Frame to Video

Request Body

Pricing

Response

Code Examples

​Request Body

​Pricing

​Response

​Code Examples

Request Body

Pricing

Response

Code Examples