What are the different currencies in Apex Legends and how are they earned?

Apex Coins can be purchased with real-world money, or earned as part of Battle Pass. They can be used to purchase cosmetics from the Featured section of the Store, purchase Apex Packs containing semi-random cosmetics and sometimes Crafting Materials, or unlock new Legends.

Legend Tokens can only be earned by leveling up (or refilling your XP bar at max level). They can be used to unlock new Legends, or purchase cosmetics in the Exclusive section of the the Store.

Crafting Metals are randomly included in some Apex Packs. 45 Apex Packs can by earned by reaching certain player levels, or they can be purchased with Apex Coins, or they can be earned as seasonal and Battle Pass rewards. Apex Coins can be used to directly purchase any generally-available (not exclusive or seasonal) cosmetic item in the game from the Armory and Legends screens.