TechLog
Back to Blog

How to Obtain a YouTube Data API v3 Key

(edited: March 10, 2026)
google cloud consoletutorial

To fetch YouTube comments, video information, and other data, you need a YouTube Data API v3 key. Follow these steps to set it up in under 5 minutes.

1. Access Google Cloud Console

Go to the Google Cloud Console and log in with your Google account.

2. Create a Project

Click the project selection dropdown at the top and select New Project.

  • Project Name: Enter any name (e.g., youtube-comments).
  • Click Create.
  • Once created, ensure the new project is selected in the top dropdown.

3. Enable YouTube Data API v3

  1. In the left sidebar, click APIs & Services → Library.
  2. Search for YouTube Data API v3 in the search bar.
  3. Click on YouTube Data API v3 from the results.
  4. Click the Enable button.

4. Generate API Key

  1. In the left sidebar, click APIs & Services → Credentials.
  2. Click + Create Credentials at the top.
  3. Select API key.
  4. Your key will be generated instantly. Click the Copy icon and save it securely.

5. (Optional) Set API Key Restrictions

To prevent unauthorized use if your key is exposed, it is highly recommended to set restrictions.

  1. Click the Edit (pencil icon) next to your generated key.
  2. Go to the API restrictions section and select Restrict key.
  3. Select YouTube Data API v3 from the dropdown.
  4. Click Save.

This ensures the key can only be used for the YouTube API, protecting your other Google Cloud resources.

Important Notes

  • Free Quota: 10,000 units per day (a single comment fetch usually costs 1 unit, which is plenty for general use).
  • Security: Treat your API key like a password. Do not upload it to public repositories like GitHub.
  • Quota Limits: If you exceed the limit, you will receive a 403 quotaExceeded error. The quota resets daily at midnight (Pacific Time).

Comments