Mexico’s official currency is pesos, however, in many places in Los Cabos, you can pay directly in dollars without any problem.
However, the question of money when traveling always raises many questions, and one of those is to know if it is possible to use your credit cards at your vacation destination.
In Los Cabos, most places accept foreign credit cards, but not everyone accepts American Express. So it’s just a matter of asking first to avoid inconvenience.