apps/klingai/video-v2-6

video-v2-6

Kling V2.6 video generation with native sound and voice control. Supports text-to-video and image-to-video with start/end frames, synchronized audio generation, and voice-driven character animation.

run in browser run via API

run with your agent

# install belt

$curl -fsSL https://cli.inference.sh | sh

# view schema & details

$belt app get klingai/video-v2-6

# run

$belt app run klingai/video-v2-6

api reference

about

kling v2.6 video generation with native sound and voice control. supports text-to-video and image-to-video with start/end frames, synchronized audio generation, and voice-driven character animation.

1. calling the api

install the client

the client provides a convenient way to interact with the api.

bash

1pip install inferencesh

setup your api key

set INFERENCE_API_KEY as an environment variable. get your key from settings → api keys.

bash

1export INFERENCE_API_KEY="inf_your_key"

run and get result

submit a request and wait for the final result. best for batch processing or when you don't need progress updates.

python

1from inferencesh import inference23client = inference()456result = client.run({7        "app": "klingai/video-v2-6",8        "input": {}9    })1011print(result["output"])

stream live updates

get real-time progress updates as the task runs. ideal for showing progress bars, partial results, or long-running tasks.

python

1from inferencesh import inference23client = inference()456# stream=True yields updates as they arrive7for update in client.run({8        "app": "klingai/video-v2-6",9        "input": {}10    }, stream=True):11    if update.get("progress"):12        print(f"progress: {update['progress']}%")13    if update.get("output"):14        print(f"output: {update['output']}")

2. authentication

the api uses api keys for authentication. see the authentication docs for detailed setup instructions.

3. files

file inputs are automatically handled by the sdk. you can pass local paths, urls, or base64 data.

automatic upload

the python sdk automatically detects local file paths and uploads them. urls are passed through as-is.

python

1# local file paths are automatically uploaded2result = client.run({3    "app": "klingai/video-v2-6",4    "input": {5        "image": "/path/to/local/image.png",  # detected & uploaded6        "audio": "https://example.com/audio.mp3",  # url passed through7    }8})

manual upload

you can also upload files manually and use the returned url.

python

1# upload and get a hosted URL2file = client.files.upload("/path/to/file.png")3print(file.uri)  # https://cloud.inference.sh/...

4. webhooks

get notified when a task completes by providing a webhook url. when the task reaches a terminal state (completed, failed, or cancelled), a POST request is sent to your url with the task result.

python

1result = client.run({2    "app": "klingai/video-v2-6",3    "input": {},4    "webhook": "https://your-server.com/webhook"5}, wait=False)

webhook payload

your endpoint receives a JSON POST with the task result:

json

1{2  "id": "task_abc123",3  "status": 9,4  "output": { ... },5  "error": "",6  "session_id": null,7  "created_at": "2024-01-15T10:30:00Z",8  "updated_at": "2024-01-15T10:30:05Z"9}

idstring— task id

statusnumber— terminal status (9=completed, 10=failed, 11=cancelled)

outputobject— task output (when completed)

errorstring— error message (when failed)

session_idstring— session id (if using sessions)

created_atstring— iso timestamp

updated_atstring— iso timestamp

5. schema

input

promptstring*

text prompt describing the video content. for voice control, include <<<voice_1>>> where the character speaks. max 2500 chars.

example: "Ocean waves crashing on rocky shore at golden hour"

imagestring(file)

start frame image for image-to-video. formats: jpg, jpeg, png. max 10mb, min 300px.

end_imagestring(file)

end frame image (pro mode only, disables audio). requires image to be set.

voice_idstring

voice id for voice-driven animation (pro mode only). use <<<voice_1>>> in prompt to mark speech.

modestring

generation mode. 'pro' for higher quality + sound/voice support, 'std' for faster/cheaper (no audio in std).

default: "pro"

options:"std""pro"

soundboolean

generate synchronized audio. only works in pro mode. disabled when using start/end frames.

default: true

aspect_ratiostring

video aspect ratio.

default: "16:9"

options:"16:9""9:16""1:1""4:3""3:4""3:2""2:3""21:9"

durationstring

video duration: 5 or 10 seconds.

default: "5"

options:"5""10"

negative_promptstring

what to avoid in the video. max 2500 chars. note: not supported on v2.x models.

output

videostring(file)*

the generated video file.

output_metaobject

structured metadata about inputs/outputs for pricing calculation

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