Mobygames.com has greatly improved the process for obtaining an API Key. This is a key which is required when you want to use the MobyGames.com online service to find information on games. Mobygames.com has been around for a long time and they offer a wealth of information on games on any platform.
To get your “free forever” key go to: https://www.mobygames.com/info/api/ and follow the very simple instructions as stated;
If you’d like access to the free API (not-for-profit use), create a MobyGames account and then visit your profile page. Click the ‘API’ link under your user name to sign up for an API key.
Give it a try – it’s worth it.