The Star Alliance lounge at LAX is no longer limited to business and first class passengers and Star Gold elites on Star Alliance airline flights (and other airline eligible passengers such as Air Tahiti Nui passengers in business class). Instead, you can now pay for access to the lounge.
You can reserve a space and purchase a voucher on the Star Alliance website. LAX is the second Star Alliance lounge offering paid access. Buenos Aires (EZE) started offering a pay-in option in November.
Availability and pricing isn’t yet showing on the Star website for LAX, however the Buenos Aires lounge has a base price of $50 per person for access, with discounts up to 20% when you show you’re a member of a Star Alliance frequent flyer program.
When you book online you receive an email with a receipt and QR code for the date and time you’ve chosen to obtain access. In general I don’t see the lounge as being worth $50, though it’s possible to have $50 worth of booze and buffet food. The outdoor deck is really nice at LAX, though.