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Kling · Model API

Kling 2.6 Motion Control API

Kling 2.6 Motion Control API with VezAPI. Explore model capabilities, credit pricing, request parameters, and integration examples.

Video to Video

Kling 2.6 Motion Control API documentation

Integrate Kling 2.6 Motion Control with your VezAPI key. The operations below share the same authentication and account balance.

Base URL: https://api.vezapi.com
Send Authorization: Bearer YOUR_VEZAPI_KEY. Use a unique Idempotency-Key for each submission; reuse it only when checking the same request.

Kling 2.6 motion-control

POST/api/v1/jobs/createTask

Model IDs: kling-2.6/motion-control

ParameterTypeDescription & constraints
model
required		string

The model name to use for generation. Required field. - Must be `kling-2.6/motion-control` for this endpoint

Values: "kling-2.6/motion-control"

Default: "kling-2.6/motion-control"

callBackUrl
optional		string

The URL to receive generation task completion updates. Optional but recommended for production use. - System will POST task status and results to this URL when generation completes - Callback includes generated content URLs and task information - Your callback endpoint should accept POST requests with JSON payload containing results - Alternatively, use the Get Task Details endpoint to poll task status - To ensure callback security, see [Webhook Verification Guide](/common-api/webhook-verification) for signature verification implementation

input
optional		object

Input parameters for the generation task

input.prompt
optional		string

A text description of the desired output. Maximum length is 2500 characters. (Max length: 2500 characters)

maxLength: 2500

input.input_urls
required		array

An array containing a single image URL. The photo must clearly show the subject's head, shoulders, and torso. (File URL after upload, not file content; Accepted types: image/jpeg, image/png, image/jpg; Max size: 10.0MB,size needs to be greater than 300px, aspect ratio 2:5 to 5:2.)

maxItems: 1

input.video_urls
required		array

An array containing a single video URL. The duration must be between 3 to 30 seconds, and the video must clearly show the subject's head, shoulders, and torso. (File URL after upload, not file content; Accepted types: video/mp4, video/quicktime; Max size: 100.0MB)

maxItems: 1

input.character_orientation
required		string

Required. Generate the orientation of the characters in the video. 'image': same orientation as the person in the picture (max 10s video). 'video': consistent with the orientation of the characters in the video (max 30s video).

Values: "image", "video"

input.mode
required		string

Required. Output resolution: "720p" or "1080p".

Values: "720p", "1080p"

Request example
curl -X POST 'https://api.vezapi.com/api/v1/jobs/createTask' \
  -H 'Authorization: Bearer YOUR_VEZAPI_KEY' \
  -H 'Idempotency-Key: your-unique-request-id' \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "kling-2.6/motion-control",
  "input": {
    "prompt": "The cartoon character is dancing.",
    "input_urls": [
      "https://example.com/input.png"
    ],
    "video_urls": [
      "https://example.com/input.png"
    ],
    "character_orientation": "video",
    "mode": "720p"
  }
}'
Responses and errors

HTTP 200

Request successful

ParameterTypeDescription & constraints
code
optional		integer

Status code of the request. The HTTP status is 200 even when the request fails, so always check this field: 200 means success; any other value means the request failed and msg describes the reason. Common values: 401 invalid or missing API key; 402 insufficient credits; 429 rate limit exceeded; 422 or 500 the request could not be processed (read msg and check your parameters before retrying).

Values: 200, 401, 402, 404, 422, 429, 433, 455, 500, 501, 505

msg
optional		string

Response message, error description upon failure

data
required		object
data.taskId
required		string

The task ID can be used with the "Get Task Details" endpoint to query the task status.

Task status and callbacks

For asynchronous tasks, keep the returned taskId. Query GET /api/v1/jobs/recordInfo?taskId=... or provide callBackUrl when creating the task. Only the account that created a task can access it or derive new resources from it.

A timeout can mean the submission was accepted. Inspect the existing request in your dashboard; do not create another task automatically. Callback delivery is retried and may arrive more than once. Deduplicate with X-VezAPI-Event-Id.

Files, logs and billing

Generated media normally follows a 14-day provider lifetime; uploaded files expire after 24 hours. Save the files you need before expiration. VezAPI streams registered files without keeping a permanent media library. Request logs are retained for two calendar months.

Credits are reserved before submission. Final deductions match actual discounted consumption one for one. Unknown usage pauses new paid requests. If available funds cannot cover final usage while protecting other reservations, settlement stays pending until funded; model usage cannot make the wallet negative. Time-based inputs require server-side metadata reads; a failed read prevents submission.

Open full documentation →

Kling 2.6 Motion Control API pricing

Rates below are reference estimates; final deductions equal actual discounted consumption, one for one. At the standard pack rate, 1,000 credits ≈ $10. Larger packs reduce the effective credit price.

SpecificationCreditsUnitUSD reference
kling 2.6 motion control, video to video, 1080P20.2per second$0.202
kling 2.6 motion control, video-to-video, 720P12.6per second$0.126