kling-3 API
Generate AI videos with the Kling 3.0 API via API in One. Supports text-to-video and image-to-video generation with dynamic credits based on mode, duration, and sound.
Use this in the request body model field.
The currently implemented BFF route.
Input types: text, image
Keys are managed by the shared dashboard.
Use callback_url on supported async tasks.
Service highlights
Marketplace-style signals backed by the current live route, without copying external SLA, discount, login, or payment claims.
This page only shows endpoints implemented under /api/v1. /api/v1/videos/generations
Use callback_url when supported, or poll the task status route for results.
Top-up, orders, credit balance, and profile continue through the existing shared console.
Your browser only holds an API in One key; provider calls stay server-side.
Call contract
Use these fields to integrate the current live model route.
- Base URL
https://apiin.oneClients call same-origin APIs; the server BFF forwards to the Worker.- Authorization
Authorization: Bearer <API_KEY>Managed by the existing Dashboard API Keys page.- Model field
kling-3Send this value in the request body model field.- Result path
/api/v1/tasks/{task_id}Async jobs return task_id, then use status polling.- Billing path
/billing/creditsUses the existing credits, orders, and top-up logic.
Runtime behavior
This model creates an async task, returns a task_id, then resolves through the real status route.
API Console
Switch between real models on this endpoint, choose a live route, and generate request examples from the current catalog payload.
curl --request POST \
--url https://apiin.one/api/v1/videos/generations \
--header 'Authorization: Bearer <API_KEY>'
--header 'Content-Type: application/json' \
--data-raw '{
"model": "kling-3",
"prompt": "A golden retriever running through a field of sunflowers at sunset, cinematic quality",
"mode": "std",
"duration": 5,
"aspect_ratio": "16:9",
"sound": true
}'/api/v1/tasks/{task_id}Endpoint decision panel
Evaluate cost, provider coverage, and production integration behavior across live models on this implemented endpoint.
Sorted by base credits from low to high.
Use callback_url when supported, or poll the task status route for results.
Live capabilities
These capabilities come from the current model config and backend route. Unreleased APIs are not listed.
Transparent dynamic credit pricing by mode
Transparent dynamic credit pricing by mode, duration, and sound
Both text
Both text-to-video and image-to-video in one endpoint
Multi
Multi-shot mode for multi-scene videos
Sound generation support (audio in video)
Sound generation support (audio in video)
Request format
Clients call same-origin API routes; the server BFF forwards to the matching Worker.
POST/api/v1/videos/generations300 creditsState-of-the-art AI video generation with 4K quality support. Text-to-video and image-to-video capabilities.
Parameters
promptstringText description of the video (max 2500 chars). Not required if multi_shots is true.
RequiredmodestringQuality mode: "std" (standard) or "pro" (professional)
Optional · Default stddurationnumberVideo duration in seconds (3–15)
Optional · Default 5aspect_ratiostringOutput aspect ratio: 1:1, 9:16, 16:9
Optional · Default 16:9soundbooleanEnable sound/audio generation in the video
Optional · Default trueimagestringImage URL for image-to-video mode
Optionalmulti_shotsbooleanEnable multi-shot mode for multi-scene videos
Optional · Default falsemulti_promptarrayArray of {prompt, duration} objects for multi-shot mode
Optionalkling_elementsarrayKling-specific creative elements
OptionalExample request
curl -X POST https://apiin.one/api/v1/videos/generations \
-H "Authorization: Bearer aio_your_api_key" \
-H "Content-Type: application/json" \
--data-raw '{
"model": "kling-3",
"prompt": "A golden retriever running through a field of sunflowers at sunset, cinematic quality",
"mode": "std",
"duration": 5,
"aspect_ratio": "16:9",
"sound": true
}'Models on the same endpoint
These live models use the same implemented BFF endpoint and can be switched by changing the model field.
grok-videovideo · 24 credits/api/v1/videos/generations🎞️ltx-2video · 24 credits/api/v1/videos/generations/api/v1/videos/generations/api/v1/videos/generations
wan-2-6video · 80 credits/api/v1/videos/generations/api/v1/videos/generationsEndpoint model comparison
Compare real models behind this implemented route by cost, provider, runtime mode, input, output, and backend node.
kling-3Current modelKuaishouAsync tasktext + image -> video300 credits$3.00node75
grok-videoxAIAsync tasktext + image -> video24 credits$0.24node31🎞️ltx-2LightTricks / WaveSpeedAsync tasktext + image + video + audio -> video24 credits$0.24node50node38node51
wan-2-6AlibabaAsync tasktext + image + video -> video80 credits$0.80node35node65node66Integration flow
These steps use the current live route and shared account system; login, payment, orders, credits, and profile remain shared.
Create a shared API key
Create a key in the existing dashboard. Top-up, orders, credit balance, and profile stay in the shared console.
Call the real endpoint
Send a request with the endpoint, model id, and parameters shown on this page. /api/v1/videos/generations
Poll task status
Async media and tool jobs use /api/v1/tasks/{task_id}; chat models return a direct response.
Task status route
After creating image, video, audio, or tool tasks, poll the real task endpoint for results.
GET/api/v1/tasks/{task_id}Check generation task status and result.Pricing
Dynamic: 120–1200 credits per video (~$1.20–$12.00); default std 5s with audio is 300 credits (~$3.00)
Use cases
These workflows are supported by the current model and backend node.
Create marketing and social media video content from text prompts
Animate product photos into dynamic video ads
Build AI video generation features into your SaaS product
Generate cinematic video clips for filmmaking and creative projects
FAQ
How much does the Kling 3.0 API cost?
Pricing depends on mode (std/pro), duration (3–15s), and sound. Default std 5s with audio costs 300 credits. The pricing formula is: std no-audio 40/s, std with-audio 60/s, pro no-audio 54/s, pro with-audio 80/s.
What is the difference between Pro and Standard mode?
Pro mode produces higher quality videos with better motion and detail. Standard mode is faster and costs fewer credits. Specify via the "mode" parameter (std or pro).
Can I generate videos from images?
Yes. Provide image URLs in the request and the model auto-detects image-to-video mode. You don't need to set the task type manually.
What video durations are supported?
Kling 3.0 supports 3–15 second video generation. Set the "duration" parameter accordingly. Default is 5 seconds.
What is multi-shot mode?
Multi-shot mode lets you create videos with multiple scenes, each with its own prompt and duration. Set multi_shots to true and provide a multi_prompt array.