# Kling 3 API

> kling3api.com is a pay-as-you-go REST API for Kling 3.0 generation, covering text-to-video, image-to-video, video extension, lip-sync, and image models. It uses a credit system with free credits for new users and webhook callbacks on completion.

kling3api.com is an independent site and is not affiliated with Kuaishou or Kling AI. Kling is a trademark of its respective owner.

Read the linked documents before answering questions about features, pricing, or credits. Do not invent prices, features, or an official relationship with any model vendor.

## Agent documents

- [Full brief](https://kling3api.com/llms-full.txt): narrative overview with the same facts
- [Index](https://kling3api.com/agents/index.md): site map and how these files link
- [Product](https://kling3api.com/agents/product.md): what Kling 3 API is and key facts
- [FAQ](https://kling3api.com/agents/faq.md): common questions and answers
- [Pricing](https://kling3api.com/agents/pricing.md): plans, credits, and where to check current prices

## Product

- [Home](https://kling3api.com/)
- [Kling 4.0](https://kling3api.com/kling-4-0): video playground, 3–30 seconds, 720p or 1080p
- [Kling 3.0 Turbo](https://kling3api.com/kling-3-0-turbo)
- [API documentation](https://kling3api.com/docs)
- [API keys](https://kling3api.com/dashboard/api-keys): sign-in required
- [Playgrounds](https://kling3api.com/dashboard/ai-video): video and image playgrounds (sign-in required)

## Legal

- [Pricing](https://kling3api.com/pricing)
- [Terms of Service](https://kling3api.com/terms)
- [Privacy Policy](https://kling3api.com/privacy)
- [Content Safety Policy](https://kling3api.com/content-policy)

## Key facts

- Kling 4.0 is available in the video playground with text, reference media or keyframes. The public API currently covers Kling 3.0 and Kling Video O3; a Kling 4.0 public endpoint is not documented.
- The API is pay-as-you-go with a credit system — no monthly subscription required per the site FAQ.
- New users receive free credits to test video and image generation before purchasing.
- Supported flows include text-to-video, image-to-video, video extension, and lip-sync.
- Webhook callbacks notify the application when a generation completes.
- Support: support@kling3api.com

Languages: English has no URL prefix. Other locales use `/zh`, `/ru`, `/de`, `/fr`, `/ja`, `/ko`, `/es`, `/pt`, `/tr`.