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POST
/
v1
/
videos
/
generations
curl --request POST \
  --url https://toapis.com/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "kling-v3",
    "prompt": "A golden cat running on a sunlit meadow, slow motion, cinematic quality",
    "mode": "std",
    "duration": 5,
    "aspect_ratio": "16:9"
  }'

{
  "id": "video_01J9HA7JPQ9A0Z6JZ3V8M9W6PZ",
  "object": "generation.task",
  "model": "kling-v3",
  "status": "queued",
  "progress": 0,
  "created_at": 1768380224,
  "metadata": {}
}
  • Async processing mode, returns task ID for subsequent queries
  • Supports text-to-video and image-to-video (first frame / first-last frame control)
  • Supports standard mode (720P) and professional mode (1080P)
  • Text-to-video supports 15-second duration
Important Change: For better performance and cost control, we no longer support passing base64 image data directly in image_urls. Please use the Upload Image API first to upload images and get URLs, then call this endpoint.

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Authorization

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Authorization
string
required
All endpoints require Bearer Token authenticationGet your API Key: Visit the API Key Management Page to get your API KeyAdd to request header:
Authorization: Bearer YOUR_API_KEY

​
Request Parameters

​
model
string
required
Video generation model name, fixed as kling-v3
​
prompt
string
required
Text prompt describing the video contentDescribe scenes, actions, and styles in detail for better generation results. English prompts are recommended.Example: "A golden retriever running on a beach at sunset, cinematic quality"
​
mode
string
default:"std"
Generation modeOptions:
  • std - Standard mode (720P)
  • pro - Professional mode (1080P)
Default: std
​
duration
integer
default:"5"
Video duration (seconds)Options: 5, 10, or 15Default: 5
15-second duration is text-to-video only; image-to-video max is 10 seconds.
​
aspect_ratio
string
default:"16:9"
Video aspect ratioOptions:
  • 16:9 - Landscape (default)
  • 9:16 - Portrait
  • 1:1 - Square
Default: 16:9
​
image_urls
string[]
Image URL array for image-to-video generation
  • Pass 1 image: used as first frame
  • Pass 2 images: automatically assigned as first frame + last frame
Maximum 2 images supportedExample: ["https://example.com/first.jpg"]
  • Maximum 2 images supported
  • Image URLs must be publicly accessible, no hotlink protection
  • In image-to-video mode, aspect_ratio may be overridden by the actual image ratio
​
metadata
object
Extended parameters for Kling v3

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Feature Support Matrix

TypeFeaturestd 5sstd 10sstd 15spro 5spro 10s
Text-to-VideoGeneration✅✅✅✅✅
Image-to-VideoGeneration✅✅-✅✅
Image-to-VideoFirst Frame✅✅-✅✅
Image-to-VideoLast Frame✅✅-✅✅
Note: 15-second duration is text-to-video only; image-to-video max is 10 seconds.

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Response

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id
string
Unique task identifier for querying task status
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object
string
Object type, fixed as generation.task
​
model
string
Model name used for generation
​
status
string
Task status
  • queued - Waiting to be processed
  • in_progress - Processing
  • completed - Successfully completed
  • failed - Failed
​
progress
integer
Task progress percentage (0-100)
​
created_at
integer
Task creation Unix timestamp
​
metadata
object
Task metadata

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Use Cases

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Case 1: Text-to-Video (Standard Mode)

{
  "model": "kling-v3",
  "prompt": "A golden cat running on a sunlit meadow, slow motion, cinematic quality",
  "mode": "std",
  "duration": 5,
  "aspect_ratio": "16:9"
}

​
Case 2: Text-to-Video (Pro Mode + Negative Prompt)

{
  "model": "kling-v3",
  "prompt": "Tokyo Shibuya crossing at night, neon lights reflected on wet ground, people walking with umbrellas",
  "metadata": {
    "negative_prompt": "blurry, low quality, distorted"
  },
  "mode": "pro",
  "duration": 10,
  "aspect_ratio": "16:9"
}

​
Case 3: Text-to-Video (15 seconds)

{
  "model": "kling-v3",
  "prompt": "Time-lapse of a flower blooming in a garden",
  "duration": 15,
  "aspect_ratio": "16:9"
}

​
Case 4: Image-to-Video (First Frame)

{
  "model": "kling-v3",
  "prompt": "The person in the frame turns and smiles",
  "image_urls": ["https://example.com/portrait.jpg"],
  "mode": "std",
  "duration": 5
}

​
Case 5: Image-to-Video (First + Last Frame Control)

{
  "model": "kling-v3",
  "prompt": "City timelapse transitioning from day to night",
  "image_urls": ["https://example.com/day-city.jpg", "https://example.com/night-city.jpg"],
  "mode": "pro",
  "duration": 5
}
Query Task ResultsVideo generation is an async task that returns a task ID upon submission. Use the Get Task Status endpoint to query generation progress and results.
curl --request POST \
  --url https://toapis.com/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "kling-v3",
    "prompt": "A golden cat running on a sunlit meadow, slow motion, cinematic quality",
    "mode": "std",
    "duration": 5,
    "aspect_ratio": "16:9"
  }'

{
  "id": "video_01J9HA7JPQ9A0Z6JZ3V8M9W6PZ",
  "object": "generation.task",
  "model": "kling-v3",
  "status": "queued",
  "progress": 0,
  "created_at": 1768380224,
  "metadata": {}
}