I've always been interested in the technical distinction between an API "key" and an API "token". And the terminology of "key" used to confuse me, because I ass

I've always been interested in the technical distinction between an API "key" and an API "token". And the terminology of "key" used to confuse me, because I associated that with cryptography, and I thought an API key would be used to sign or encrypt something. But it seems that in many cases it's basically just a long, random password.