HOW TO GET A YOUTUBE DATA API v3 KEY? (DETAILED GUIDE)

This guide explains step-by-step how to get the free API key required for the add-on to connect to YouTube chats.
Even if you have no technical knowledge, you can easily create your key by following these steps in order.
Note: Do not share your API key with anyone.
 
Step 1: Logging into Google Cloud Platform
1. Click the "Open Google Cloud Console in Browser" button in the add-on or go to "https://console.cloud.google.com" in your browser.
2. Log in with an existing Google (Gmail) account.
If you are logging into the system for the first time, a terms of service or welcome screen may appear; confirm to continue.

Step 2: Creating a New Project
1. Click the "Select a project" button at the top of the screen. Find and click the "New Project" button in the top right corner of the window that opens.
2. In the "Project Name" field, type a simple name to help you remember the add-on (For example: "NVDA Youtube Chat").
3. Click the "Create" button at the bottom. Creating the project may take a few seconds; wait for it to complete.

Step 3: Enabling the YouTube API
1. After your project is created, click on "APIs & Services" from the left navigation menu, then click the "Library" tab.
2. Type "YouTube Data API v3" into the search box that appears and search.
3. Click on the "YouTube Data API v3" link from the search results.
4. Click the "Enable" button on the page that opens.
This process will grant your created project the authorization to fetch YouTube live chat data.

Step 4: Generating the API Key
1. After the API is enabled, click on the "Credentials" tab on the page you are redirected to or in the left menu.
2. Click the "Create Credentials" button at the top of the screen.
3. Select the "API key" option from the small menu that opens.

Step 5: Copying the Key and Adding It to the Add-on
1. A window saying "API key created" will open on the screen, and a complex, long code starting with the letters "AIza" will appear.
2. This long text is your API key.
Copy it by clicking the copy button next to the text or by selecting the text completely.
3. Now return to the NVDA add-on settings, paste this copied key into the "Google API Key" box, and save the settings.

IMPORTANT SECURITY NOTE: 
This key is completely private to you.
Please do not share it with others or on public platforms.
Google provides this service completely free of charge for personal use, and the daily quota allocated for the add-on to fetch messages is more than sufficient for personal use.