Organizing all the different API key types without going mad

1. Can I create multiple API keys?
2. Where should I put my API keys?

Can I create multiple API keys?

You can generate up to 100 unique API keys. Using a different API key for each site allows you to disable the key if you're no longer using it on an active website, or have stopped supporting the project. You can also add a label for each individual API Key so you can easily keep track of them.

Where should I put my API keys?

Instead of embedding your API keys in your applications, store them in environment variables or in files outside of your application's source tree.