Video Extension

Doc version: v1.0.0 | Last updated: 2026-06-11
This platform fully supports the Kling AI official video generation API. Requests and responses are transparently proxied; parameter semantics are identical to the official API.

Create Task

POST https://platform.dataeyes.ai/kling/v1/videos/video-extend

Note 1: Video extension refers to extending the duration of text-to-video/image-to-video results. Each extension can add 4 to 5 seconds, and the model and mode used cannot be selected; they must be the same as the source video.

Note 2: Videos that have been extended can be extended again, but the total video duration cannot exceed 3 minutes.

Request Headers

Parameter	Type	Required	Default	Description
`Content-Type`	string	Yes	application/json	Data Exchange Format
`Authorization`	string	Yes		Authentication information, refer to API authentication

Request Body

Parameter	Type	Required	Default	Description
`video_id`	string	Yes		Video ID - Supports video IDs generated by the text-to-video, the image-to-video and the video extension interface (it cannot exceed 3 minutes). - Only videos generated by V1.0, V1.5, and V1.6 models are supported. Please note that based on the current cleanup policy, videos will be cleared 30 days after generation, and extension will not be possible.
`prompt`	string	No		Text Prompt Cannot exceed 2500 characters
`negative_prompt`	string	No		Negative text prompt Cannot exceed 2500 characters
`cfg_scale`	float	No	0.5	Prompt reference strength. The higher the value, the stronger the reference to the prompt. Value range: [0, 1]
`watermark_info`	object	No		Whether to generate watermarked results simultaneously - Defined by the enabled parameter, format: - true: generate watermarked result, false: do not generate - Custom watermarks are not currently supported
`callback_url`	string	No		The callback notification address for the task results. If configured, the server will actively notify when the task status changes. - For specific message schema, see Callback Protocol
`external_task_id`	string	No		Customized Task ID - User-defined task ID. It will not override the system-generated task ID, but supports querying tasks by this ID - Please note that it must be unique for each user
Parameter Format Details

watermark_info

"watermark_info": { "enabled": boolean }

Request Example

curl --request POST \
  --url https://platform.dataeyes.ai/kling/v1/videos/video-extend \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "prompt": "A puppy appears",
    "video_id": "743211632612511839",
    "negative_prompt": "",
    "callback_url": ""
  }'

Response Example

{
  "code": 0, // Error codes; Specific definitions can be found in Error codes
  "message": "string", // Error information
  "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems
  "data": {
    "task_id": "string", // Task ID, generated by the system
    "task_status": "string", // Task status, Enum values: submitted, processing, succeed, failed
    "task_info": { // Task creation parameters
      "external_task_id": "string" // Customer-defined task ID
    },
    "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms
    "updated_at": 1722769557708 //Task update time, Unix timestamp, unit: ms
  }
}

Query Task (Single)

GET https://platform.dataeyes.ai/kling/v1/videos/video-extend/{id}

Request Headers

Parameter	Type	Required	Default	Description
`Content-Type`	string	Yes	application/json	Data Exchange Format
`Authorization`	string	Yes		Authentication information, refer to API authentication

Request Example

curl --request GET \
  --url https://platform.dataeyes.ai/kling/v1/videos/video-extend/{task_id} \
  --header 'Authorization: Bearer <token>'

Response Example

{
  "code": 0, // Error codes; Specific definitions can be found in Error codes
  "message": "string", // Error information
  "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems
  "data": {
    "task_id": "string", // Task ID, generated by the system
    "task_status": "string", // Task status, Enum values: submitted, processing, succeed, failed
    "task_status_msg": "string", // Task status information, displaying the failure reason when the task fails (such as triggering the content risk control of the platform, etc.)
    "task_info": {
      "parent_video": { //Parameters information when the task is created
        "id": "string", //Video ID before the extension；globally unique
        "url": "string", //URL for generating images(To ensure information security, generated images/videos will be cleared after 30 days. Please make sure to save them promptly.)
        "duration": "string" //Original video duration, unit: s (seconds)
      },
      "external_task_id": "string" // Customer-defined task ID
    },
    "task_result": {
      "videos": [
        {
          "id": "string", // Generated video ID; globally unique, will be cleared after 30 days
          "url": "string", // URL for generating videos (To ensure information security, generated images/videos will be cleared after 30 days. Please make sure to save them promptly.)
          "watermark_url": "string", // Watermarked video download URL, anti-leech format
          "duration": "string" //Total video duration, unit: s (seconds)
        }
      ]
    },
    "watermark_info": {
      "enabled": boolean
    },
    "final_unit_deduction": "string", // The deduction units of task
    "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms
    "updated_at": 1722769557708 //Task update time, Unix timestamp, unit: ms
  }
}

Query Task (List)

GET https://platform.dataeyes.ai/kling/v1/videos/video-extend

Request Headers

Parameter	Type	Required	Default	Description
`Content-Type`	string	Yes	application/json	Data Exchange Format
`Authorization`	string	Yes		Authentication information, refer to API authentication

Request Example

curl --request GET \
  --url 'https://platform.dataeyes.ai/kling/v1/videos/video-extend?pageNum=1&pageSize=30' \
  --header 'Authorization: Bearer <token>'

Response Example

{
  "code": 0, // Error codes; Specific definitions can be found in Error codes
  "message": "string", // Error information
  "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems
  "data": [
    {
      "task_id": "string", // Task ID, generated by the system
      "task_status": "string", // Task status, Enum values: submitted, processing, succeed, failed
      "task_status_msg": "string", // Task status information, displaying the failure reason when the task fails (such as triggering the content risk control of the platform, etc.)
      "task_info": {
        "parent_video": { //Parameters information when the task is created
          "id": "string", //Video ID before the extension；globally unique
          "url": "string", //URL for generating images(To ensure information security, generated images/videos will be cleared after 30 days. Please make sure to save them promptly.)
          "duration": "string" //Original video duration, unit: s (seconds)
        },
        "external_task_id": "string" // Customer-defined task ID
      },
      "task_result": {
        "videos": [
          {
            "id": "string", // Generated video ID; globally unique, will be cleared after 30 days
            "url": "string", // URL for generating videos (To ensure information security, generated images/videos will be cleared after 30 days. Please make sure to save them promptly.)
            "watermark_url": "string", // Watermarked video download URL, anti-leech format
            "duration": "string" //Total video duration, unit: s (seconds)
          }
        ]
      },
      "watermark_info": {
        "enabled": boolean
      },
      "final_unit_deduction": "string", // The deduction units of task
      "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms
      "updated_at": 1722769557708 //Task update time, Unix timestamp, unit: ms
    }
  ]
}

07-Video-Extension

Video Extension#

Create Task#

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Query Task (Single)#

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Query Task (List)#

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Video Extension

Create Task

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Request Example

Response Example

Query Task (Single)

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Response Example

Query Task (List)

Request Headers

Request Example

Response Example