Kling 2.6 Text to Video

This page is generated from the upstream official OpenAPI documentation. Endpoints, parameters and examples match the official docs; brand and API domain are replaced with ModelFold.

Endpoint

POST /jobs/createTask

Full URL: https://ai.modelfold.online/v1/jobs/createTask

Authentication: every request must include the Authorization: Bearer <API_KEY> header.

Query Task Status

After submitting a task, you can check the task progress and retrieve generation results via the unified query endpoint:

• Get Task Details — Learn how to query task status and obtain generation results

TIP

For production use, we recommend using the callBackUrl parameter to receive automatic notifications when generation completes, rather than polling the status endpoint.

TIP

Enabling sound doubles the price. For current prices, see ai.modelfold.online/pricing.

Related Resources

• Market Overview — Browse all available models
• Common API — Check account credits and usage status

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	Name of the model used for the generation task. Required field. - This endpoint must use the kling-2.6/text-to-video model Default："kling-2.6/text-to-video"。 Allowed values：kling-2.6/text-to-video。 示例：kling-2.6/text-to-video。
callBackUrl	string	No	Callback URL to receive notifications when the generation task is completed. Optional configuration, recommended for production environments. - After the task is completed, the system will POST the task status and results to this URL - The callback content includes the generated resource URL and task-related information - Your callback endpoint must support receiving POST requests with JSON payloads - You can also choose to call the task details endpoint to actively poll the task status - To ensure callback security, see Webhook Verification Guide for signature verification implementation 示例：https://your-domain.com/api/callback。
input	object	No	Input parameters for the generation task
input.prompt	string	Yes	Text prompt (max 2,500 characters). 示例：Scene: A fashion live-streaming sales setting, with clothes hanging on racks and the host's figure reflected in a full-length mirror. Lines: [African female host] turns around to showcase the hoodie's cut. [African female host, in a cheerful tone] says: "360-degree flawless tailoring, slimming and versatile." She then [African female host] leans closer to the camera. [African female host, in a lively tone] says: "Double-sided fleece fabric, $30 off immediately when you order now."。
input.sound	boolean	Yes	Required. This parameter specifies whether the generated video contains sound (boolean: true/false) 示例：false。
input.aspect_ratio	string	Yes	Required. This parameter defines the video aspect ratio Allowed values：1:1 / 16:9 / 9:16。 示例：1:1。
input.duration	string	Yes	Required. Video duration (unit: seconds) Allowed values：5 / 10。 示例：5。

Request Example

curl -X POST "https://ai.modelfold.online/v1/jobs/createTask" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-2.6/text-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "Scene: A fashion live-streaming sales setting, with clothes hanging on racks and the host'\''s figure reflected in a full-length mirror. Lines: [African female host] turns around to showcase the hoodie'\''s cut. [African female host, in a cheerful tone] says: \"360-degree flawless tailoring, slimming and versatile.\" She then [African female host] leans closer to the camera. [African female host, in a lively tone] says: \"Double-sided fleece fabric, $30 off immediately when you order now.\"",
    "sound": false,
    "aspect_ratio": "1:1",
    "duration": "5"
  }
}'

{
  "model": "kling-2.6/text-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "Scene: A fashion live-streaming sales setting, with clothes hanging on racks and the host's figure reflected in a full-length mirror. Lines: [African female host] turns around to showcase the hoodie's cut. [African female host, in a cheerful tone] says: \"360-degree flawless tailoring, slimming and versatile.\" She then [African female host] leans closer to the camera. [African female host, in a lively tone] says: \"Double-sided fleece fabric, $30 off immediately when you order now.\"",
    "sound": false,
    "aspect_ratio": "1:1",
    "duration": "5"
  }
}

Response

200 — Request Successful

{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_kling-2.6_1765182425861"
  }
}

Callback

videoTaskCompleted

Callback URL: {request.body#/callBackUrl} (the callBackUrl in the request body).

The system sends this callback when the kling-2.6/text-to-video task succeeds or fails.

Callback body parameters

参数	类型	必填	说明
code	integer	是	Unified callback code: 200 for success, 501 for failure. Allowed values：200 / 501。 示例：200。
msg	string	是	Unified callback message. Allowed values：Playground task completed successfully. / Playground task failed.。 示例：Playground task completed successfully.。
data	object	是	—
data.taskId	string	是	The unique task identifier.
data.model	string	是	The model used for the task. Allowed values：kling-2.6/text-to-video。 示例：kling-2.6/text-to-video。
data.state	string	是	Terminal task state. Allowed values：success / fail。 示例：success。
data.param	string	是	JSON string containing the submitted task parameters.
data.resultJson	string	否	JSON string containing resultUrls, firstFrameUrl, lastFrameUrl, or resultObject when successful. Present only when state is success.
data.failCode	string	否	Failure code, a numeric string such as "400" or "500". Present only when state is fail.
data.failMsg	string	否	Failure reason. Present only when state is fail.
data.costTime	integer	否	Processing time in seconds. Present on both success and failure callbacks.
data.completeTime	integer	否	Task completion timestamp.
data.createTime	integer	否	Task creation timestamp.
data.updateTime	integer	否	Use completeTime as the completion time; updateTime may equal createTime.
data.creditsConsumed	number	否	Credits consumed by the task; 0 for failed tasks.

Task completed successfully

{
  "code": 200,
  "msg": "Playground task completed successfully.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "kling-2.6/text-to-video",
    "state": "success",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"Scene: A fashion live-streaming sales setting, with clothes hanging on racks and the host's figure reflected in a ful...\\\",\\\"sound\\\":false,\\\"aspect_ratio\\\":\\\"1:1\\\",\\\"duration\\\":\\\"5\\\"}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"kling-2.6/text-to-video\"}",
    "resultJson": "{\"resultUrls\":[\"https://example.com/generated-video.mp4\"]}",
    "costTime": 12,
    "completeTime": 1234567890,
    "createTime": 1234560000,
    "updateTime": 1234567890,
    "creditsConsumed": 1.23
  }
}

Task failed

{
  "code": 501,
  "msg": "Playground task failed.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "kling-2.6/text-to-video",
    "state": "fail",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"Scene: A fashion live-streaming sales setting, with clothes hanging on racks and the host's figure reflected in a ful...\\\",\\\"sound\\\":false,\\\"aspect_ratio\\\":\\\"1:1\\\",\\\"duration\\\":\\\"5\\\"}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"kling-2.6/text-to-video\"}",
    "failCode": "400",
    "failMsg": "<error detail>",
    "costTime": 12,
    "creditsConsumed": 0
  }
}