Kling 2.1 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>",
    "image_url": "<string>",
    "end_image_url": "<string>",
    "duration": "<string>",
    "guidance_scale": 123,
    "negative_prompt": "<string>"
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "image_url": "<string>",
        "end_image_url": "<string>",
        "duration": "<string>",
        "guidance_scale": 123,
        "negative_prompt": "<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>',
      image_url: '<string>',
      end_image_url: '<string>',
      duration: '<string>',
      guidance_scale: 123,
      negative_prompt: '<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 2.1 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>",
    "image_url": "<string>",
    "end_image_url": "<string>",
    "duration": "<string>",
    "guidance_scale": 123,
    "negative_prompt": "<string>"
  }
}
'

import requests

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

payload = {
    "model": "<string>",
    "input": {
        "prompt": "<string>",
        "image_url": "<string>",
        "end_image_url": "<string>",
        "duration": "<string>",
        "guidance_scale": 123,
        "negative_prompt": "<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>',
      image_url: '<string>',
      end_image_url: '<string>',
      duration: '<string>',
      guidance_scale: 123,
      negative_prompt: '<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 smooth video transition between a start frame and end frame using Kling 2.1 Pro.

Property	Value
Provider	Kling Plus
Model	Kling 2.1 Pro
Capability	Start-End Frame to Video
Base Cost	50,000 micro-cents/second ($0.05/second)
Processing Time	~240 seconds

Request Body

string

required

Model slug. Use kling-plus/kling-2.1-pro/start-end-frame-to-video for start-end frame to video generation.

object

required

Input parameters for start-end frame to video generation.

Hide properties

string

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

string

required

Start frame image URL.

string

required

End frame image URL.

string

Video duration in seconds. Options: 5, 10. Default: 5.

number

Prompt adherence strength. min 0, max 1. Default: 0.5.

string

Negative prompt. max 1000 characters.

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/second)

finalCost = baseCost × duration

Factor	Option	Multiplier
Duration	`5`	5x
	`10`	10x

Default cost (duration=5): 50,000 × 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-plus/kling-2.1-pro/start-end-frame-to-video",
    "input": {
      "image_url": "https://example.com/image.jpg",
      "end_image_url": "https://example.com/end-image.jpg",
      "prompt": "Smooth cinematic transition with natural camera movement.",
      "duration": "5"
    }
  }'

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-plus/kling-2.1-pro/start-end-frame-to-video",
        "input": {
            "image_url": "https://example.com/image.jpg",
            "end_image_url": "https://example.com/end-image.jpg",
            "prompt": "Smooth cinematic transition with natural camera movement.",
            "duration": "5"
        }
    }
)

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-plus/kling-2.1-pro/start-end-frame-to-video",
    input: {
      image_url: "https://example.com/image.jpg",
      end_image_url: "https://example.com/end-image.jpg",
      prompt: "Smooth cinematic transition with natural camera movement.",
      duration: "5"
    }
  })
});

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

Google

OpenAI

Runway

Kling

Kling Plus

Alibaba

Alibaba Plus

ByteDance

ByteDance Plus

MiniMax Plus

xAI

Kling 2.1 Pro — Start-End Frame to Video

Request Body

Pricing

Response

Code Examples

​Request Body

​Pricing

​Response

​Code Examples

Request Body

Pricing

Response

Code Examples