Kling 3.0 API — AI Video Generation API | Text-to-Video & Image-to-Video

Provider

Kuaishou

Pricing

Dynamic: ~200–1200 credits per video

Speed

60–180 seconds

Output

video

Quick Start

Send a request to the Kling 3.0 API:

bash

curl -X POST https://apiin.one/api/v1/videos/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-3",
  "prompt": "A golden retriever running through a field of sunflowers at sunset, cinematic quality",
  "mode": "std",
  "duration": 5,
  "aspect_ratio": "16:9",
  "sound": true
}'

API Endpoint

POST/api/v1/videos/generationsKling 3.0

Send a POST request with your API key to generate content using Kling 3.0.

Headers

Header	タイプ	必須	説明
`Authorization`	string	必須	Bearer YOUR_API_KEY
`Content-Type`	string	必須	application/json

Body Parameters

パラメーター	タイプ	必須	説明
`model`	string	必須	Model identifier: "kling-3"
`prompt`	string	必須	Text description of the video (max 2500 chars). Not required if multi_shots is true.
`mode`	string	任意	Quality mode: "std" (standard) or "pro" (professional) (デフォルト: std)
`duration`	number	任意	Video duration in seconds (3–15) (デフォルト: 5)
`aspect_ratio`	string	任意	Output aspect ratio: 1:1, 9:16, 16:9 (デフォルト: 16:9)
`sound`	boolean	任意	Enable sound/audio generation in the video (デフォルト: true)
`image`	string	任意	Image URL for image-to-video mode
`multi_shots`	boolean	任意	Enable multi-shot mode for multi-scene videos (デフォルト: false)
`multi_prompt`	array	任意	Array of {prompt, duration} objects for multi-shot mode
`kling_elements`	array	任意	Kling-specific creative elements

Example Request

json

{
  "model": "kling-3",
  "prompt": "A golden retriever running through a field of sunflowers at sunset, cinematic quality",
  "mode": "std",
  "duration": 5,
  "aspect_ratio": "16:9",
  "sound": true
}

Example Response

Successful task creation response.

{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "n75xxxx_kling3",
    "status": "IN_PROGRESS"
  }
}

Check Task Status

For asynchronous tasks, poll the status endpoint to check when your task is complete:

GET/api/v1/tasks/{task_id}Poll task status

Returns the current status of a generation task. Poll until status is 'completed' or 'failed'.

bash

curl https://apiin.one/api/v1/tasks/task_abc123 \
  -H "Authorization: Bearer aio_your_key"

Use Cases

✓Create marketing and social media video content from text prompts
✓Animate product photos into dynamic video ads
✓Build AI video generation features into your SaaS product
✓Generate cinematic video clips for filmmaking and creative projects

API Tester

Test the Kling 3.0 API directly from your browser:

API プレイグラウンドPOST

ベースURL

エンドポイント

ヘッダー

リクエストボディ

Error Codes

{
  "error": {
    "code": 400,
    "message": "Invalid parameters",
    "type": "invalid_request"
  }
}

Frequently Asked Questions

How much does the Kling 3.0 API cost?

Pricing depends on mode (std/pro), duration (3–15s), and sound. For example: std 5s no-audio costs ~200 credits, pro 5s with audio costs ~400 credits. The pricing formula is: std no-audio 40/s, std with-audio 60/s, pro no-audio 54/s, pro with-audio 80/s.

What is the difference between Pro and Standard mode?

Pro mode produces higher quality videos with better motion and detail. Standard mode is faster and costs fewer credits. Specify via the "mode" parameter (std or pro).

Can I generate videos from images?

Yes. Provide image URLs in the request and the model auto-detects image-to-video mode. You don't need to set the task type manually.

What video durations are supported?

Kling 3.0 supports 3–15 second video generation. Set the "duration" parameter accordingly. Default is 5 seconds.

What is multi-shot mode?

Multi-shot mode lets you create videos with multiple scenes, each with its own prompt and duration. Set multi_shots to true and provide a multi_prompt array.