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POST
/
kling-v2.1-mi2i
/
async
curl --request POST \
  --url https://api.modellix.ai/api/v1/image-to-image/kling/kling-v2.1-mi2i/async \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{}'
{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-mi2i-stu901",
    "model_id": "kling-v2.1-mi2i"
  }
}

Authorizations

​
Authorization
string
header
required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json

Note: All parameters are optional, but at least one of prompt, subject_image_list, scene_image, or style_image should be provided. This model does NOT support: negative_prompt, resolution, image, image_reference, image_fidelity, or human_fidelity parameters.

​
prompt
string

Image description text, supports Chinese and English. Optional but recommended for better results

Required string length: 1 - 2500
Example:

"Family gathering in an elegant dining room"

​
subject_image_list
object[]

List of subject reference images. Each element must contain a 'subject_image' field with image URL or Base64 data. Minimum 1 image, maximum 4 images

Required array length: 1 - 4 elements
Example:
[
  {
    "subject_image": "https://example.com/person1.jpg"
  },
  {
    "subject_image": "https://example.com/person2.jpg"
  },
  {
    "subject_image": "https://example.com/person3.jpg"
  }
]
​
scene_image
string

Scene reference image (Base64 encoded or URL). Used for scene replacement. Supported formats: .jpg, .jpeg, .png. Maximum size: 10MB

Minimum string length: 1
Example:

"https://example.com/dining-room.jpg"

​
style_image
string

Style reference image (Base64 encoded or URL). Used for style transfer. Supported formats: .jpg, .jpeg, .png. Maximum size: 10MB

Minimum string length: 1
Example:

"https://example.com/elegant-style.jpg"

​
aspect_ratio
enum<string>
default:16:9

Image aspect ratio

Available options:
16:9,
9:16,
1:1,
4:3,
3:4,
3:2,
2:3,
21:9
Example:

"3:2"

​
n
integer
default:1

Number of images to generate per request

Required range: 1 <= x <= 9
Example:

1

Response

Task submitted successfully

​
code
integer
required

Response code, 0 indicates success

Example:

0

​
message
string
required

Response message

Example:

"success"

​
data
object
required