Setup: add your free YouTube API key

Takes about 2 minutes, no cost

The Thumbnail Downloader and Title Extractor already work with zero setup. Every other tool (description, tags, comment picker, subscriber counter, banner, logo, video info) needs a free YouTube Data API v3 key.

Step 1 — Create a Google Cloud project

Go to console.cloud.google.com, sign in with any Google account, and create a new project (top-left project dropdown → "New Project"). Name it anything, e.g. "kamloo-online".

Step 2 — Enable the YouTube Data API v3

In the left sidebar go to APIs & Services → Library, search for "YouTube Data API v3", open it, and click Enable.

Step 3 — Create an API key

Go to APIs & Services → Credentials → Create Credentials → API key. Google generates a key immediately — copy it.

Step 4 — Restrict the key (important)

Click on the new key to edit it. Under Application restrictions, choose Websites and add:

kamloo.online/* *.kamloo.online/*

Under API restrictions, choose Restrict key and select only YouTube Data API v3. This stops anyone else from using your quota even though the key is visible in your site's JavaScript.

Step 5 — Paste it into Kamloo

Open assets/js/config.js in your site files and replace the placeholder:

const KAMLOO_CONFIG = { YOUTUBE_API_KEY: "PASTE_YOUR_YOUTUBE_DATA_API_V3_KEY_HERE", // ← put your key here ... };

Save the file and re-upload it to your host. Every tool will now pull real, live YouTube data.

About quota

The free tier gives you 10,000 quota units per day — enough for roughly several thousand tool runs a day for a new site. If you ever see "quota exceeded" errors, wait until the daily reset (midnight Pacific Time) or request a quota increase from Google.

Never share your API key publicly outside your own site, and always keep the website restriction from Step 4 turned on.