> ## Documentation Index
> Fetch the complete documentation index at: https://apidoc.cometapi.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Create a Kling multi-image video task
> Create Kling videos from multiple images via CometAPI POST /kling/v1/videos/multi-image2video, with motion control and output settings for generation.
Use this endpoint when one source image is not enough and you want Kling to build motion from multiple image references.
## Before you call it
* Prepare 1 to 4 images in `image_list`
* Use images that meet Kling pixel requirements; tiny thumbnails are rejected by the generation task
* Omit `model_name` unless you specifically need to select a route-compatible model
* Keep the first test simple: a short prompt, `duration: 5`, no extra callback settings
* Do not send image-to-video mask fields such as `static_mask` or `dynamic_masks` on this route
## Task flow
Send the image list, prompt, and duration, then save the returned Kling `task_id`.
Continue with [Get a Kling task](./individual-queries) until the task reaches a terminal state.
Store the finished video if you need retention beyond the provider delivery URL.
For the complete parameter reference, see the [official Kling documentation](https://kling.ai/document-api/apiReference/model/multiImageToVideo).
## OpenAPI
````yaml api/openapi/video/kling/post-multi-image-to-video.openapi.json POST /kling/v1/videos/multi-image2video
openapi: 3.1.0
info:
title: Multi-Image to Video API
version: 1.0.0
description: Create a Kling video task from multiple source images.
servers:
- url: https://api.cometapi.com
security:
- bearerAuth: []
paths:
/kling/v1/videos/multi-image2video:
post:
summary: Create a Kling multi-image-to-video task
description: >-
Submit 2 to 4 images plus a motion prompt and receive a task id for
later polling.
operationId: multi_image_to_video
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- image_list
properties:
model_name:
type: string
description: >-
Kling model variant for multi-image video. Omit to use
`kling-v1-6`.
default: kling-v1-6
enum:
- kling-v1-6
image_list:
type: array
description: >-
Input image references. Provide 1 to 4 items that meet Kling
pixel requirements; very small thumbnails are rejected.
minItems: 1
maxItems: 4
items:
type: object
required:
- image
properties:
image:
type: string
description: Image URL or base64 image string.
prompt:
type: string
description: Text prompt describing the desired motion and scene.
negative_prompt:
type: string
description: Elements to avoid in the generated video.
mode:
type: string
description: >-
Generation mode. Use `std` or `pro`; omitted requests use
`std`.
enum:
- std
- pro
default: std
duration:
type: string
description: >-
Output video length in seconds. Use `5` or `10`; omitted
requests use `5`.
default: '5'
aspect_ratio:
type: string
description: >-
Requested frame aspect ratio when the model needs an
explicit frame shape.
enum:
- '16:9'
- '9:16'
- '1:1'
callback_url:
type: string
description: Webhook URL to receive task status updates.
external_task_id:
type: string
description: >-
Custom task id for your own tracking. Must be unique per
account.
default:
image_list:
- image: https://your-image-host/first-frame.jpg
- image: https://your-image-host/second-frame.jpg
prompt: A smooth transition between the two reference moments
mode: std
duration: '5'
aspect_ratio: '1:1'
examples:
Default:
summary: Multi-image video request
value:
image_list:
- image: https://your-image-host/first-frame.jpg
- image: https://your-image-host/second-frame.jpg
prompt: A smooth transition between the two reference moments
mode: std
duration: '5'
aspect_ratio: '1:1'
responses:
'200':
description: Task accepted.
content:
application/json:
schema:
type: object
required:
- code
- message
- data
properties:
code:
type: integer
description: Error code; specifically define the error code
message:
type: string
description: error message
data:
type: object
required:
- task_id
- task_status
- created_at
- updated_at
properties:
task_id:
type: string
description: Task ID, system generated
task_status:
type: string
description: >-
Task status, enumerated values: submitted, processing,
succeed, failed.
task_status_msg:
type: string
task_info:
type: object
additionalProperties: true
created_at:
type: integer
description: Task creation time, Unix timestamp, in ms.
updated_at:
type: integer
description: Task update time, Unix timestamp, in ms.
example:
code: 0
message: SUCCEED
data:
task_id: '861309198188019719'
task_status: submitted
task_info: {}
created_at: 1773380633979
updated_at: 1773380633979
x-codeSamples:
- lang: Shell
label: Default
source: |
curl https://api.cometapi.com/kling/v1/videos/multi-image2video \
-H "Authorization: Bearer $COMETAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"image_list": [
{
"image": "https://your-image-host/first-frame.jpg"
},
{
"image": "https://your-image-host/second-frame.jpg"
}
],
"prompt": "A smooth transition between the two reference moments",
"mode": "std",
"duration": "5",
"aspect_ratio": "1:1"
}'
- lang: Python
label: Default
source: |
import os
import requests
response = requests.post(
"https://api.cometapi.com/kling/v1/videos/multi-image2video",
headers={"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]},
json={
"image_list": [
{
"image": "https://your-image-host/first-frame.jpg"
},
{
"image": "https://your-image-host/second-frame.jpg"
}
],
"prompt": "A smooth transition between the two reference moments",
"mode": "std",
"duration": "5",
"aspect_ratio": "1:1"
},
)
result = response.json()
print(result.get("code"), result.get("data", {}).get("task_id"))
- lang: JavaScript
label: Default
source: >
const response = await
fetch("https://api.cometapi.com/kling/v1/videos/multi-image2video",
{
method: "POST",
headers: {
Authorization: `Bearer ${process.env.COMETAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"image_list": [
{
"image": "https://your-image-host/first-frame.jpg"
},
{
"image": "https://your-image-host/second-frame.jpg"
}
],
"prompt": "A smooth transition between the two reference moments",
"mode": "std",
"duration": "5",
"aspect_ratio": "1:1"
}),
});
const result = await response.json();
console.log(result.code, result.data?.task_id);
components:
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: Bearer token authentication. Use your CometAPI key.
````