Maybe not for an API key, but for an account, you would think they would have some method of keeping notes. I've never worked for a company that had a concept of accounts, and teams of people that interfaced with accounts, without having a method of keeping notes about an account. That's just a basic necessity, especially when the accounts exchange money with the company, there's usually accounts that pay more than others that require special handling, which is usually documented in an account notes screen of some kind.