kling-3.0-turbo API

Use the exact model ID kling-3.0-turbo. The model field must match this page exactly.

Authentication and endpoint

Use a Modelflare API key with https://modelflare.dev/v1. The gateway entry point is POST /v1/videos.

Authorization: Bearer YOUR_MODELFLARE_API_KEY

Create a task

curl https://modelflare.dev/v1/videos \
  -H "Authorization: Bearer YOUR_MODELFLARE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling-3.0-turbo",
    "prompt": "A white cat runs through a neon-lit street in the rain, cinematic tracking shot",
    "settings": {"duration": 5, "resolution": "720p"}
  }'

Poll and download

Save the task ID. Poll GET /v1/videos/{task_id} and download with GET /v1/videos/{task_id}/content. Result URLs may expire, so transfer the file promptly.

curl https://modelflare.dev/v1/videos/TASK_ID \
  -H "Authorization: Bearer YOUR_MODELFLARE_API_KEY"

Request notes

Kling uses family-specific model_name, prompt, mode, duration, image_list, or contents / settings fields; native JSON is preserved and forwarded.

Request parameters

Kling 3.0 Turbo selects the model in the URL path; do not put model_name in the body. Text-to-video and first-frame image-to-video use different request entries.

Field	Required	Notes
`prompt`	Yes	Text-to-video prompt; use the official length limit
`contents[]`	Conditional	For image-to-video, include `prompt` and `first_frame`
`settings.resolution`	No	`720p` / `1080p`
`settings.aspect_ratio`	No	`16:9` / `9:16` / `1:1`
`settings.duration`	No	3–15 seconds
`options.watermark_info`	No	Watermark configuration

Input and output limits

Text-to-video and first-frame image-to-video use prompt and contents[] respectively. Output is 720p or 1080p for 3–15 seconds; multi-shot prompts support up to six shots.

Supported scope

This page covers Modelflare model generation and editing calls. Search or map enrichment, voice management, and element-library management are resource APIs outside this public model-call surface and are not required request fields.

Pricing and billing

This model uses per-second video billing. See the model pricing page for the current customer price, reference list price, and complete specification.