> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jiekou.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Kling v3.0 Pro Image-to-Video

The Kling v3.0 Pro image-to-video tool converts static images into dynamic videos, generating natural motion and smoother scene dynamics while maintaining subject consistency. It supports flexible durations from 3 to 15 seconds, synchronized audio and video generation, end-frame control, and multi-shot video generation.

<Tip>
  This is an **asynchronous** API and will only return the asynchronous task's task\_id. You should use this task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the generated result.
</Tip>

## Request Headers

<ParamField header="Content-Type" type="string" required={true}>
  Enum value: `application/json`
</ParamField>

<ParamField header="Authorization" type="string" required={true}>
  Bearer authentication format: Bearer \{\{API Key}}.
</ParamField>

## Request Body

<ParamField body="image" type="string" required={true}>
  The first-frame image of the video; supports `.jpg`, `.jpeg`, and `.png`. The image file size must not exceed 10MB; both width and height must be >= 300px; the aspect ratio must be between 1:2.5 and 2.5:1.
</ParamField>

<ParamField body="sound" type="boolean" default={false}>
  Whether to generate audio while generating the video.
</ParamField>

<ParamField body="prompt" type="string" required={true}>
  The positive prompt text for generating the video, which can describe scene motion, camera movement, actions, voice style, atmosphere, and sound effects; must not exceed 2500 characters.
</ParamField>

<ParamField body="duration" type="integer" default={5}>
  The duration of the generated video (in seconds). Supports flexible durations from 3 to 15 seconds.

  Value range: \[3, 15]
</ParamField>

<ParamField body="cfg_scale" type="number" default={0.5}>
  Controls the flexibility of video generation. The higher the value, the more closely the generated content adheres to the prompt; the lower the value, the more natural the motion effects.

  Value range: \[0, 1]
</ParamField>

<ParamField body="end_image" type="string">
  End-frame image URL used to guide the transition effect. Not compatible with multi\_prompt. Supports `.jpg`, `.jpeg`, and `.png`.
</ParamField>

<ParamField body="multi_prompt" type="string[]">
  A list of prompts for multi-shot video generation. Divides the video into multiple shots. Mutually exclusive with prompt.
</ParamField>

<ParamField body="negative_prompt" type="string">
  Negative prompt specifying elements to avoid in the visuals and audio; must not exceed 2500 characters.
</ParamField>

## Response

<ResponseField name="task_id" type="string" required={true}>
  Use task\_id to request the [Get Task Result API](/en/docs/models/reference-get-async-task-result) to retrieve the generated output.
</ResponseField>