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POST
/
kling-v2.6-i2v
/
async
curl --request POST \
  --url https://api.modellix.ai/api/v1/kling/kling-v2.6-i2v/async \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "image": "https://example.com/concert.jpg"
}
'
{
  "code": 0,
  "message": "success",
  "data": {
    "status": "pending",
    "task_id": "task-i2v008",
    "model_id": "model-123",
    "get_result": {
      "method": "GET",
      "url": "https://api.modellix.ai/api/v1/tasks/task-i2v008"
    }
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.modellix.ai/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

API Key authentication. Format: Bearer YOUR_API_KEY.

Body

application/json
​
image
string
required

Starting frame image URL or Base64

Example:

"https://example.com/image.jpg"

​
image_tail
string

Ending frame image URL or Base64 (mutually exclusive with motion brush)

Example:

"https://example.com/end.jpg"

​
prompt
string

Video generation prompt

Required string length: 1 - 2500
Example:

"Live concert with crowd cheering"

​
negative_prompt
string

Negative prompt

Required string length: 1 - 2500
Example:

"silent, empty"

​
sound
enum<string>
default:on

Audio generation switch: on (enable) or off (disable). Only supported by V2.6.

Available options:
on,
off
Example:

"on"

​
voice_ids
string[]

Voice ID list for audio generation. Simplified flattened parameter. Only supported by V2.6.

Required array length: 1 - 10 elements

Voice ID string

Minimum string length: 1
Example:
["voice_id_1", "voice_id_2"]
​
mode
enum<string>
default:std

Generation mode: std or pro

Available options:
std,
pro
Example:

"pro"

​
static_mask
string

Static mask image for motion brush (mutually exclusive with image_tail)

Example:

"https://example.com/mask.jpg"

​
duration
enum<integer>
default:5

Video duration in seconds

Available options:
5,
10
Example:

10

Response

Task submitted successfully

​
code
integer
required

Response code, 0 indicates success

Example:

0

​
message
string
required

Response message

Example:

"success"

​
data
object
required

Detailed data about the submitted asynchronous task.