How to Get a Kling API Key: A Step-by-Step Guide

Reynaldi Chernando

Updated: June 26, 2026

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Prerequisites Step 1: Create Your Kling AI Account Step 2: Generate Your API Key Step 3: Make Your First API Call Can You Use the Kling API for Free?Conclusion Related

This guide shows you how to get a Kling API key. You'll create a Kling AI account, generate your access and secret keys, and make your first video generation API call, plus a free alternative for adding Kling models to your web app.

Prerequisites

A Google, Apple, or email account for signing up
Basic familiarity with code (we'll show simple JavaScript examples)

Step 1: Create Your Kling AI Account

Go to kling.ai/dev/api-key. You'll see a login or sign-up page — create your account using your Google account, Apple account, or email.

Step 2: Generate Your API Key

Once signed in, you'll land directly on the API keys page. Click Create a new API Key to generate a new key.

Give your key a descriptive name so you can identify it later.

After creation, you'll see both your Access Key and Secret Key. Important: Your secret key is only shown once, so make sure to copy and store it somewhere safe — a password manager, an .env file, or your platform's secrets manager. Never commit API keys to a public repository.

Step 3: Make Your First API Call

Kling doesn't have an official SDK, but you can use community-built wrappers. The kling-api package on npm handles JWT generation, auto-polling, and retry logic automatically.

Install it:

npm install kling-api

Then make a text-to-video request:

import { KlingAPI } from 'kling-api';

const api = new KlingAPI({
  accessKey: 'your-access-key',
  secretKey: 'your-secret-key'
});

const task = await api.textToVideo({
  prompt: 'A cat playing piano in a cozy room',
  model_name: 'kling-v2-master',
  duration: '5'
});

const result = await api.waitForVideoResult(task.data.task_id);
console.log('Video URL:', result.data.task_result.videos[0].url);

If you get a video URL back, everything is working. For the full set of endpoints and parameters, see Kling's official API docs.

Can You Use the Kling API for Free?

Creating an API key is free, but the API itself is paid: you pay for each video you generate. Rates depend on the model and the length of the clip, so check Kling's pricing for current numbers.

Puter.js offers a different model. With its User-Pays model, you can add Kling models to your app for free: each user covers their own AI usage through their own Puter account, so your cost stays at $0 regardless of how many users you have, with no API key and no backend.

Add Kling models with the browser script tag:

<script src="https://js.puter.com/v2/"></script>
<script>
  puter.ai.txt2vid("A sunrise drone shot flying over a calm ocean", {
    model: "kwaivgi/kling-2.1-master"
  }).then(video => {
    document.body.appendChild(video);
  });
</script>

or the npm package:

import { puter } from '@heyputer/puter.js';

const video = await puter.ai.txt2vid("A sunrise drone shot flying over a calm ocean", {
  model: "kwaivgi/kling-2.1-master"
});
document.body.appendChild(video);

This fits front-end apps where your users sign into Puter: usage is tied to their accounts, and Puter.js runs in the browser, so it does not replace a server-side key for a backend you control.

Conclusion

To get a Kling API key: sign up at kling.ai/dev/api-key, then click Create a new API Key to generate your access key and secret key. From there you can make your first API call, or skip the key entirely and add Kling models to a web app for free with Puter.js.

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