curl --request POST \
--url https://api.evolink.ai/v1/videos/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "kling-v4-reference-to-video",
"prompt": "保持<<<video_1>>>相同的运动风格,换成雪景背景",
"video_urls": [
"https://example.com/reference.mp4"
],
"duration": 5,
"aspect_ratio": "16:9",
"quality": "720p"
}
'{
"created": 1757169743,
"id": "task-unified-1757169743-7cvnl5zw",
"model": "kling-v4-reference-to-video",
"object": "video.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": true,
"estimated_time": 300,
"video_duration": 9
},
"type": "video",
"usage": {
"billing_rule": "per_second",
"credits_reserved": 53.38,
"user_group": "default"
}
}{
"error": {
"code": "invalid_request",
"message": "Invalid request parameters",
"type": "invalid_request_error"
}
}{
"error": {
"code": "unauthorized",
"message": "Invalid or expired token",
"type": "authentication_error"
}
}{
"error": {
"code": "insufficient_quota",
"message": "Insufficient quota. Please top up your account.",
"type": "insufficient_quota"
}
}{
"error": {
"code": "model_access_denied",
"message": "Token does not have access to model: kling-v4-reference-to-video",
"type": "invalid_request_error"
}
}{
"error": {
"code": "rate_limit_exceeded",
"message": "Too many requests, please try again later",
"type": "rate_limit_error"
}
}{
"error": {
"code": "internal_error",
"message": "Internal server error",
"type": "api_error"
}
}Kling-4.0 参考生视频
- Kling-4.0 Reference to Video (kling-v4-reference-to-video) 基于参考图片、参考视频生成新视频
- 参考视频作为特征参考(非直接编辑),可结合文本、参考图进行创作
- 异步处理模式,使用返回的任务ID 进行查询
- 生成的视频链接,有效期为24小时,请尽快保存
curl --request POST \
--url https://api.evolink.ai/v1/videos/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "kling-v4-reference-to-video",
"prompt": "保持<<<video_1>>>相同的运动风格,换成雪景背景",
"video_urls": [
"https://example.com/reference.mp4"
],
"duration": 5,
"aspect_ratio": "16:9",
"quality": "720p"
}
'{
"created": 1757169743,
"id": "task-unified-1757169743-7cvnl5zw",
"model": "kling-v4-reference-to-video",
"object": "video.generation.task",
"progress": 0,
"status": "pending",
"task_info": {
"can_cancel": true,
"estimated_time": 300,
"video_duration": 9
},
"type": "video",
"usage": {
"billing_rule": "per_second",
"credits_reserved": 53.38,
"user_group": "default"
}
}{
"error": {
"code": "invalid_request",
"message": "Invalid request parameters",
"type": "invalid_request_error"
}
}{
"error": {
"code": "unauthorized",
"message": "Invalid or expired token",
"type": "authentication_error"
}
}{
"error": {
"code": "insufficient_quota",
"message": "Insufficient quota. Please top up your account.",
"type": "insufficient_quota"
}
}{
"error": {
"code": "model_access_denied",
"message": "Token does not have access to model: kling-v4-reference-to-video",
"type": "invalid_request_error"
}
}{
"error": {
"code": "rate_limit_exceeded",
"message": "Too many requests, please try again later",
"type": "rate_limit_error"
}
}{
"error": {
"code": "internal_error",
"message": "Internal server error",
"type": "api_error"
}
}授权
##所有接口均需要使用Bearer Token进行认证##
获取 API Key:
访问 API Key 管理页面 获取您的 API Key
使用时在请求头中添加:
Authorization: Bearer YOUR_API_KEY
请求体
视频生成模型名称
kling-v4-reference-to-video "kling-v4-reference-to-video"
文本提示词,最长 2500 字符
引用语法: prompt 中可以通过 <<<xxx>>> 语法引用图片和视频,例如:<<<image_1>>>中的人物,按<<<video_1>>>的运镜走过街道
2500"<<<image_1>>>中的人物,按<<<video_1>>>的运镜走过街道"
参考视频 URL 数组,最多 5 段,按顺序对应 prompt 中的 <<<video_1>>>、<<<video_2>>>……
视频格式要求:
- 格式:MP4 / MOV
- 大小:单段 ≤ 200MB
- 时长:单段 ≥ 3 秒,所有视频合计 ≤ 30 秒
- 尺寸:宽高 720px ~ 2160px
- 帧率:24fps ~ 60fps
- 视频URL需要服务器能直接访问
5["https://example.com/reference.mp4"]
参考图片 URL 数组(风格/场景/主体参考),按顺序对应 prompt 中的 <<<image_1>>>、<<<image_2>>>……
约束: 最多 10 张
说明: 图像URL需要服务器能直接访问,或者访问时会直接下载
10["https://example.com/character.jpg"]
视频时长(秒),范围 3~30
3 <= x <= 305
视频宽高比
说明:
16:9:横屏视频9:16:竖屏视频1:1:方形视频21:9:超宽屏视频
16:9, 9:16, 1:1, 21:9 "16:9"
分辨率档位
说明:
720p:标准 720P1080p:高品质 1080P
720p, 1080p "720p"
任务完成后的HTTPS回调地址
回调时机:
- 任务完成(completed)、失败(failed)或取消(cancelled)时触发
- 在计费确认完成后发送
安全限制:
- 仅支持HTTPS协议
- 禁止回调到内网IP地址(127.0.0.1、10.x.x.x、172.16-31.x.x、192.168.x.x等)
- URL长度不超过
2048字符
回调机制:
- 超时时间:
10秒 - 失败后最多重试
3次(会分别在失败的1秒/2秒/4秒后进行重试) - 回调响应体格式与任务查询接口返回的格式一致
- 回调地址若返回2xx状态码视为成功,其他状态码会触发重试
"https://your-domain.com/webhooks/video-task-completed"
响应
视频生成任务创建成功
任务创建时间戳
1757169743
任务ID
"task-unified-1757169743-7cvnl5zw"
实际使用的模型名称
"kling-v4-reference-to-video"
任务的具体类型
video.generation.task 任务进度百分比 (0-100)
0 <= x <= 1000
任务状态
pending, processing, completed, failed "pending"
视频任务详细信息
Show child attributes
Show child attributes
任务的输出类型
text, image, audio, video "video"
使用量和计费信息
Show child attributes
Show child attributes