callBackUrl parameter to receive an automatic notification when generation is complete instead of polling the status endpoint.curl --location 'https://api.kie.ai/api/v1/jobs/createTask' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "pixverse-v6/extend",
"input": {
"prompt": "Continue the same camera motion and extend the scene naturally",
"taskId": "parent_task_id_from_previous_success_video",
"duration": 5,
"quality": "720p",
"generate_audio_switch": false,
"seed": 123456
},
"callBackUrl": "https://example.com/kie/callback"
}'{
"code": 200,
"msg": "success",
"data": {
"taskId": "string"
}
}