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Documentation Index

Fetch the complete documentation index at: https://docs.firemoon.studio/llms.txt

Use this file to discover all available pages before exploring further.

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Overview

Kling provides cinematic-quality video generation with smooth motion and professional results. Perfect for marketing videos, social media content, and storytelling.

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Available Models

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kling-2-1-master

The latest Kling video generation model with enhanced quality and motion smoothness. Endpoint: POST /api/v1/kling/kling-2-1-master Best for:
  • Marketing and promotional videos
  • Social media content
  • Product demonstrations
  • Storytelling and narratives
Performance:
  • Inference time: 10-30 seconds (depending on duration)
  • Quality: Professional cinematic
  • Cost: Medium

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Parameters

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Required Parameters

ParameterTypeDescription
promptstringDescription of the video scene and action

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Optional Parameters

ParameterTypeDefaultDescription
durationstring”5”Video duration in seconds (“5” or “10”)
aspect_ratiostring”16:9”Video aspect ratio (“16:9” or “9:16”)
seednumberrandomRandom seed for reproducible results

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Examples

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Basic Video Generation

const response = await fetch('https://firemoon.studio/api/v1/kling/kling-2-1-master', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    prompt: 'A butterfly emerging from its chrysalis and flying away',
    duration: '5',
    aspect_ratio: '16:9'
  })
});

const result = await response.json();
console.log('Video URL:', result.videos[0].url);

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Marketing Video

const response = await fetch('https://firemoon.studio/api/v1/kling/kling-2-1-master', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    prompt: 'A sleek electric car driving through a futuristic city at sunset, smooth camera movement following the vehicle',
    duration: '10',
    aspect_ratio: '16:9',
    seed: 12345
  })
});

const result = await response.json();
console.log('Marketing video:', result.videos[0].url);

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Response Format

{
  "videos": [
    {
      "url": "https://blob.vercel-storage.com/...",
      "duration": 5,
      "width": 1920,
      "height": 1088,
      "content_type": "video/mp4"
    }
  ],
  "seed": 123456789,
  "timings": {
    "inference": 15.2
  }
}

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Best Practices

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Prompt Engineering for Video

Include motion and action:
  • “A car driving down a winding road”
  • “Waves crashing on the shore”
  • “A bird flying through the sky”
Specify camera movement:
  • “Smooth camera pan across the landscape”
  • “Drone shot flying over the city”
  • “Tracking shot following the subject”
Describe timing and pacing:
  • “Slow motion water droplets falling”
  • “Fast-paced city traffic”
  • “Gentle floating motion”

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Video Optimization

  1. Keep prompts concise but descriptive (under 200 characters recommended)
  2. Specify duration based on your needs (5s for social media, 10s for detailed scenes)
  3. Choose aspect ratio to match your platform (16:9 for YouTube, 9:16 for TikTok/Instagram)
  4. Use seeds for consistent variations

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Pricing

Video generation is billed per second of output. Contact us for detailed pricing based on your usage volume.

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Current Limitations

  • Maximum duration: 10 seconds
  • Supported aspect ratios: 16:9 and 9:16
  • Videos are generated at 1080p resolution
Kling videos typically take 10-30 seconds to generate. Consider implementing async processing for better user experience.