Kling 3.0 Omni 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.

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Common API — Check account credits and usage status

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
`model`	`string`	Yes	The name of the model used to generate the task. This field is required. - This endpoint requires the `kling-3.0-omni/text-to-video` model Default：`"kling-3.0-omni/text-to-video"`。 Allowed values：`kling-3.0-omni/text-to-video`。示例：`kling-3.0-omni/text-to-video`。
`callBackUrl`	`string`	No	The URL to receive generation task completion updates. Optional but recommended for production use. - System will POST task status and results to this URL when generation completes - Callback includes generated content URLs and task information - Your callback endpoint should accept POST requests with JSON payload containing results - Alternatively, use the Get Task Details endpoint to poll task status - To ensure callback security, see Webhook Verification Guide for signature verification implementation 示例：`https://your-domain.com/api/callback`。
`input`	`object`	Yes	Input parameter configuration for the generation task. Rules: (1) customize_multi_shots and prefer_multi_shots cannot both be true; (2) customize_multi_shots = true requires 1–6 multi_prompt shots (each 1–12 s, total ≤ 15 s); (3) otherwise omit multi_prompt.

Request Example

bash

curl -X POST "https://ai.modelfold.online/v1/jobs/createTask" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-3.0-omni/text-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "A wide shot of the fox entering the snowy forest.",
    "customize_multi_shots": true,
    "multi_prompt": [
      {
        "prompt": "A wide shot of the fox entering the snowy forest.",
        "duration": 2
      },
      {
        "prompt": "A cinematic close-up of the fox looking toward the sunrise.",
        "duration": 3
      }
    ],
    "audio": false,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "duration": 5
  }
}'

json

{
  "model": "kling-3.0-omni/text-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "A wide shot of the fox entering the snowy forest.",
    "customize_multi_shots": true,
    "multi_prompt": [
      {
        "prompt": "A wide shot of the fox entering the snowy forest.",
        "duration": 2
      },
      {
        "prompt": "A cinematic close-up of the fox looking toward the sunrise.",
        "duration": 3
      }
    ],
    "audio": false,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "duration": 5
  }
}

Response

200 — Request Successful

json

{
  "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-3.0-omni/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-3.0-omni/text-to-video`。示例：`kling-3.0-omni/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

json

{
  "code": 200,
  "msg": "Playground task completed successfully.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "kling-3.0-omni/text-to-video",
    "state": "success",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"A wide shot of the fox entering the snowy forest.\\\",\\\"customize_multi_shots\\\":true,\\\"multi_prompt\\\":[{\\\"prompt\\\":\\\"A wide shot of the fox entering the snowy forest.\\\",\\\"duration\\\":2},{\\\"prompt\\\":\\\"A cinematic close-up of the fox looking toward the sunrise.\\\",\\\"duration\\\":3}],\\\"audio\\\":false,\\\"resolution\\\":\\\"720p\\\",\\\"aspect_ratio\\\":\\\"16:9\\\",\\\"duration\\\":5}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"kling-3.0-omni/text-to-video\"}",
    "resultJson": "{\"resultUrls\":[\"https://example.com/generated-video.mp4\"]}",
    "costTime": 12,
    "completeTime": 1234567890,
    "createTime": 1234560000,
    "updateTime": 1234567890,
    "creditsConsumed": 1.23
  }
}

Task failed

json

{
  "code": 501,
  "msg": "Playground task failed.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "kling-3.0-omni/text-to-video",
    "state": "fail",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"A wide shot of the fox entering the snowy forest.\\\",\\\"customize_multi_shots\\\":true,\\\"multi_prompt\\\":[{\\\"prompt\\\":\\\"A wide shot of the fox entering the snowy forest.\\\",\\\"duration\\\":2},{\\\"prompt\\\":\\\"A cinematic close-up of the fox looking toward the sunrise.\\\",\\\"duration\\\":3}],\\\"audio\\\":false,\\\"resolution\\\":\\\"720p\\\",\\\"aspect_ratio\\\":\\\"16:9\\\",\\\"duration\\\":5}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"kling-3.0-omni/text-to-video\"}",
    "failCode": "400",
    "failMsg": "<error detail>",
    "costTime": 12,
    "creditsConsumed": 0
  }
}

Kling 3.0 Omni Text to Video ​

Endpoint ​

Query Task Status ​

Related Resources ​

Request Parameters ​

Body (application/json) ​

Request Example ​

Response ​

200 — Request Successful ​

Callback ​

videoTaskCompleted ​

Kling 3.0 Omni Text to Video

Endpoint

Query Task Status

Related Resources

Request Parameters

Body (application/json)

Request Example

Response

200 — Request Successful

Callback

videoTaskCompleted