sak_and the Public Access Key or
pak_have distinct permission roles to accommodate many Lightning Network use cases client side and server side.
sak_is intended to be used SERVER SIDE only, and is meant to be as secret as secret keys can get. This key has permission to perform ALL requests across the API.
pak_is intended to be used CLIENT SIDE only, and is intended to be paired with a Wallet Access Key (
pak_is essentially serves as an account identifier, while the Wallet Access Keys provide a level of control over wallets. This dynamic is helpful for when you want to have wallets perform certain functions client side, but do not want to expose your entire LNPay account.