Kling 3.0 API

Kling 3.0 video model with text-to-video, image-to-video, and custom element creation. Supports 3-15 second videos with per-second billing.

Model Type :

Kling 3.0 Text to Video Kling 3.0 Image to Video

First Frame / End Frame (at least one required)

Upload first frame or end frame image to generate video

Prompt

Estimated Cost (5s)

5.4 Credits

Sample Result

No sample available

Prompt

0 (suggested: 2,000)

First Frame

First frame image. At least one of first/end frame is required.

Click to upload or drag and drop

Supported formats: JPG, JPEG, PNG
Maximum file size: 10MB; Maximum files: 1

End Frame

End-frame image (optional)

Click to upload or drag and drop

Supported formats: JPG, JPEG, PNG
Maximum file size: 10MB; Maximum files: 1

Aspect Ratio

Duration5s

3s15s

Quality

Sound

Click Generate to see preview

Historique

Max 20 éléments

0 en cours · 0 terminé

Votre historique de génération apparaîtra ici

Billing Rules

•Price shown is per second
•Duration range: 3-15 seconds
•Total = price/second × duration

Pricing

Model	Mode	Quality	Sound	Price
Kling 3.0 Image to Video	Video Generation	720p	Off	Popular $0.0750/ second(5.4 Credits)
Kling 3.0 Image to Video	Video Generation	720p	On	$0.1125/ second(8.1 Credits)
Kling 3.0 Image to Video	Video Generation	1080p	Off	$0.1000/ second(7.1982 Credits)
Kling 3.0 Image to Video	Video Generation	1080p	On	$0.1500/ second(10.8 Credits)

Popular

Kling 3.0 Image to Video

Video Generation

Quality:720p

Sound:Off

Price:

$0.0750/ second

(5.4 Credits)

Kling 3.0 Image to Video

Video Generation

Quality:720p

Sound:On

Price:

$0.1125/ second

(8.1 Credits)

Kling 3.0 Image to Video

Video Generation

Quality:1080p

Sound:Off

Price:

$0.1000/ second

(7.1982 Credits)

Kling 3.0 Image to Video

Video Generation

Quality:1080p

Sound:On

Price:

$0.1500/ second

(10.8 Credits)

If it's down, we automatically use the next cheapest available—ensuring 99.9% uptime at the best possible price.

Kling 3.0 API for video creation

Build with the Kling 3.0 model. Generate videos from text or images through one unified API with 3-15 second output support.

Hero showcase of Kling 3.0 video capabilities

What can you build with the Kling 3.0 API?

Text-to-video creation

Generate videos directly from text prompts with Kling 3.0. Describe scenes, actions, and styles in natural language and let the model produce 3-15 second clips ready for marketing, social media, or creative projects.

Start creating

Image-driven video generation

Use images to guide video generation. Kling 3.0 supports image-to-video mode, giving teams precise control over visual style, character consistency, and scene composition.

Explore modes

Multi-shot and sound effects

Create complex multi-shot videos with scene transitions and add AI-generated sound effects. Kling 3.0 supports customizable shot sequences and audio generation for professional-quality output.

Try it now

Why teams choose Kling 3.0

Kling 3.0 provides text-to-video and image-to-video modes in a single model family with competitive pricing.

Two specialized modes

Text and image modes cover the core video creation workflow.

3.0 architecture

Built on Kling's 3.0 foundation for quality video generation.

Flexible 3-15s output

Generate videos from 3 to 15 seconds with per-second billing.

How to integrate the Kling 3.0 API

From input to production-ready video in three steps.

Choose your mode

Select text-to-video or image-to-video based on your workflow needs.

Submit a generation task

Send your request with prompts or images. Track the async task until results are ready.

Review and iterate

Download results, compare variations, and reuse the same structure for fast iteration across campaigns.

View API Docs

Core capabilities of the Kling 3.0 API

Video AI with two specialized modes

Text

Text-to-video generation

Generate videos purely from text descriptions. Kling 3.0 interprets natural language prompts to produce dynamic video content without requiring any visual input.

Image

Image-to-video transformation

Transform static images into dynamic videos. Provide reference images and let Kling 3.0 animate them with natural motion and scene dynamics.

Multi-Shot

Multi-shot support

Create complex multi-shot videos with customizable scene transitions, per-shot prompts, and duration control for professional video production.

Sound

Sound effects

Add AI-generated sound effects to your videos. Toggle sound on or off based on your needs, with transparent pricing for audio generation.

Billing

Per-second billing

Pay only for what you generate with per-second billing. Videos range from 3 to 15 seconds, giving teams precise cost control for every project.

Quality

720p & 1080p quality

Choose between standard 720p and high-quality 1080p output resolution to balance quality and cost for your specific use case.

Frequently Asked Questions

Everything you need to know about the product and billing.

The Kling 3.0 API provides access to Kling's 3.0 video model through EvoLink. It supports two modes: text-to-video and image-to-video. Each mode generates 3-15 second videos with per-second billing. Use your EvoLink dashboard for current pricing and availability.

Kling 3.0 offers two modes: text-to-video for generating from prompts, and image-to-video for animating images. Each mode is optimized for different production workflows.

Kling 3.0 generates videos between 3 and 15 seconds. Billing is per-second within this range. Videos shorter than 3 seconds are billed at the 3-second minimum. This range is suitable for social media clips, ads, and short-form content.

Kling 3.0 uses per-second billing at 5.4 credits per second base rate. The price varies by quality and sound: 720p+off = 1.0x, 720p+on = 1.5x, 1080p+off = 1.333x, 1080p+on = 2.0x. Check your EvoLink dashboard for your group's specific pricing.

Kling O3 (V3 Omni) supports four modes including reference-to-video and video editing, while Kling 3.0 focuses on text-to-video and image-to-video. 3.0 has slightly different pricing factors compared to O3.

Start with a clear subject and describe the action, mood, and setting in simple terms. For image-to-video, provide high-quality reference images. Consistency improves when your prompt structure stays stable across runs.

Limits, pricing, and available modes are determined by your provider and region. Use your EvoLink dashboard and API responses as the source of truth. Check the API documentation for the most current constraints and parameters.

API Reference

Select endpoint

Authentication

All APIs require Bearer Token authentication.

Header

Authorization: 
Bearer YOUR_API_KEY

Get API Key

POST

/v1/videos/generations

Create Video

Kling 3.0 Image to Video (kling-v3-image-to-video) transforms static images into dynamic videos using the 3.0 model. Supports first frame, end frame, subject control, multi-shot, and sound effects.

Asynchronous processing mode, use the returned task ID to query status.

Generated video links are valid for 24 hours, please save them promptly.

Important Notes

At least one of image_start (first frame) or image_end (end frame) is required.
Image requirements: JPG/JPEG/PNG, ≤ 10MB, width/height ≥ 300px, aspect ratio 1:2.5 ~ 2.5:1.
Video duration: 3-15 seconds, billed per second.
Pricing varies by quality and sound: 720p+off = 1.0x, 720p+on = 1.5x, 1080p+off = 1.333x, 1080p+on = 2.0x.

Request Parameters

modelstringRequiredDefault: kling-v3-image-to-video

Video generation model name.

Examplekling-v3-image-to-video

promptstringOptional

Text prompt describing what kind of motion and video to generate.

Notes

Max 2500 characters
Optional for image-to-video

ExampleA gentle breeze moves through the scene, creating subtle motion and life.

image_startstringOptional

First-frame image URL. At least one of image_start or image_end must be provided.

Notes

JPG/JPEG/PNG format
Max size: 10MB
Width/height ≥ 300px, aspect ratio 1:2.5 ~ 2.5:1

Examplehttps://example.com/first-frame.jpg

image_endstringOptional

End-frame image URL. At least one of image_start or image_end must be provided.

Notes

Optional
Same format requirements as image_start

Examplehttps://example.com/end-frame.jpg

durationintegerOptionalDefault: 5

Specifies the generated video duration in seconds.

Notes

Range: 3-15 seconds (integer)
Base price: 5.4 credits per second
Minimum billing: 3 seconds

Example5

aspect_ratiostringOptional

Video aspect ratio. When a first-frame image is provided, this can be omitted (auto-adapts to image ratio).

Value	Description
16:9	Landscape video
9:16	Portrait video
1:1	Square video

Example16:9

qualitystringOptionalDefault: 720p

Video resolution quality. Affects billing multiplier.

Value	Description
720p	Standard 720P (1.0x base)
1080p	High quality 1080P (1.333x base)

Example720p

soundstringOptionalDefault: off

Sound effect control. Affects billing multiplier.

Value	Description
off	No sound effects (1.0x)
on	Generate sound effects (1.5x)

Notes

Combined multiplier: 720p+off=1.0x, 720p+on=1.5x, 1080p+off=1.333x, 1080p+on=2.0x

Exampleoff

callback_urlstringOptional

HTTPS callback address after task completion.

Notes

Triggered on completion, failure, or cancellation
HTTPS only, no internal IPs
Max length: 2048 chars
Timeout: 10s, Max 3 retries

Examplehttps://your-domain.com/webhooks/video-task-completed

model_params.multi_shotbooleanOptionalDefault: false

Enable multi-shot mode for generating videos with multiple camera angles or scenes.

Notes

When enabled, shot_type and multi_prompt become relevant

Exampletrue

model_params.shot_typestringOptional

Shot type for multi-shot mode. Required when multi_shot is true.

Value	Description
customize	Custom per-shot prompts and durations
intelligence	AI auto-plans shots based on prompt

Notes

Only effective when multi_shot=true

Examplecustomize

model_params.multi_promptarrayOptional

Per-shot prompt array. Required when multi_shot=true and shot_type=customize. Each item defines a shot segment.

Notes

Format: [{index: number, prompt: string, duration: string}, ...]
Max 6 shots
Total duration of all shots should match the requested duration
When used, top-level prompt can be empty

Example[{"index": 1, "prompt": "Scene one", "duration": "5"}, {"index": 2, "prompt": "Scene two", "duration": "5"}]

model_params.element_listarrayOptional

Subject library list for referencing pre-trained subjects in the video.

Notes

Format: [{element_id: long}, ...]
Max 3 subjects
Reference subjects in prompt using <<<element_N>>> placeholder

Example[{"element_id": 123456}]

negative_promptstringOptional

Negative prompt describing what you don't want in the video.

Notes

Max 2500 characters
Optional

Exampleblurry, watermark, text, low quality

model_params.watermark_infoobjectOptional

Watermark configuration for the generated video.

Notes

Format: {enabled: boolean}

Example{"enabled": false}

Request Example (First Frame)

{
  "model": "kling-v3-image-to-video",
  "prompt": "A gentle breeze moves through the scene",
  "image_start": "https://example.com/portrait.jpg",
  "duration": 5,
  "quality": "720p"
}

Request Example (First + End Frame)

{
  "model": "kling-v3-image-to-video",
  "prompt": "Transition from day to night",
  "image_start": "https://example.com/day.jpg",
  "image_end": "https://example.com/night.jpg",
  "duration": 10,
  "quality": "1080p",
  "sound": "on"
}

Response Example

{
  "created": 1757169743,
  "id": "task-unified-1757169743-v3i2v",
  "model": "kling-v3-image-to-video",
  "object": "video.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 180,
    "video_duration": 5
  },
  "type": "video",
  "usage": {
    "billing_rule": "per_second",
    "credits_reserved": 27.0,
    "user_group": "default"
  }
}