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POST
/
v1
/
videos
/
generations
Kling V3 Text-to-Video
curl --request POST \
  --url https://api.foxapi.cc/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kling-v3-text-to-video",
  "prompt": "An ancient Japanese courtyard, raindrops slowly falling into a pond beside a stone lantern, creating ripples. Camera slowly pushes in, cinematic quality, shallow depth of field",
  "resolution": "1080p",
  "generate_audio": true,
  "negative_prompt": "blurry, low quality, watermark",
  "aspect_ratio": "16:9",
  "duration": 10
}
'
{
  "created": 1757165031,
  "id": "task-unified-1757165031-uyujaw3d",
  "model": "<string>",
  "object": "video.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 45
  },
  "type": "video"
}

Authorizations

​
Authorization
string
header
required

All APIs require Bearer Token authentication

Add to request header:

Authorization: Bearer YOUR_API_KEY

Body

application/json
​
model
string
default:kling-v3-text-to-video
required

kling-v3-text-to-video: Pure text driven video generation, supports 720p/1080p

Example:

"kling-v3-text-to-video"

​
prompt
string
required

Text prompt describing the video content you want to generate

Notes:

  • Maximum 2500 characters
  • Supports both Chinese and English
Maximum string length: 2500
Example:

"An ancient Japanese courtyard, raindrops slowly falling into a pond, creating ripples"

​
resolution
string
default:720p

Output resolution

Options:

  • 720p — 720P SD
  • 1080p — 1080P HD
  • 4k — Native 4K UHD (independent tier, billing not affected by generate_audio / voice_ids)
Example:

"720p"

​
generate_audio
boolean
default:false

Whether to generate accompanying audio

Notes:

  • When enabled, the video will include AI-generated sound effects/music
  • Disabled by default
Example:

false

​
negative_prompt
string
default:""

Negative prompt, describing elements you don't want to appear

Notes:

  • Separate multiple keywords with commas
  • Common: blurry, low quality, watermark, text overlay

Do not pass this parameter unless necessary.

Example:

"blurry, low quality, watermark, text overlay"

​
aspect_ratio
string
default:16:9

Output video aspect ratio

Available values:

  • 16:9 — Landscape (default)
  • 9:16 — Portrait
  • 1:1 — Square
Example:

"16:9"

​
duration
integer
default:5

Output video duration (seconds)

Available values:

  • 5 — 5-second short video (default)
  • 10 — 10-second video
Example:

5

​
voice_ids
string[] | null

Voice ID list for voice control

Notes:

  • Maximum 2 voices
  • Use <<<voice_1>>> / <<<voice_2>>> in prompt to reference
  • Obtain voice_id via the kling-video-create-voice endpoint
  • generate_audio must be true when using this parameter

Do not pass this parameter unless necessary.

Example:
["voice_123456"]
​
multi_prompt
object[] | null

Multi-prompt sequence

Notes:

  • Each segment contains its own prompt and duration
  • The sum of all segment durations should equal the total duration

Do not pass this parameter unless necessary.

Response

Task created successfully

​
created
integer

Task creation timestamp

Example:

1757165031

​
id
string

Task ID

Example:

"task-unified-1757165031-uyujaw3d"

​
model
string

Actual model name used

​
object
enum<string>

Specific task type

Available options:
video.generation.task
​
progress
integer

Task progress percentage (0-100)

Required range: 0 <= x <= 100
Example:

0

​
status
enum<string>

Task status

Available options:
pending,
processing,
completed,
failed
Example:

"pending"

​
task_info
object

Async task information

​
type
enum<string>

Task output type

Available options:
video
Example:

"video"