We’ve just added the ability to add labels to the API keys you’ve generated in your account.
This is a particularly nice feature because MailChimp integrates with so many different apps. When you’re generating separate keys for all those integrations, you might want to go ahead and label them in order to track them. So in the future if you want to revoke a key for a particular app, you’ll know which is which by name instead of having to guess from the long string of letters and numbers.
You’ll find your MailChimp API keys under Account ==> API Keys & Info in the top left corner of the application interface.