You don’t need a Mojang/Microsoft account. The game uses username‑only authentication, making it the top choice for anon play, LAN parties, and large‑scale “no premium required” events.
If you are looking for the definitive "Eaglercraft 1.15 top" experience, Why Eaglercraft 1.15 is a Fan Favorite
: Eaglercraft could be a custom server, mod, or a project related to Minecraft. Minecraft version 1.15, known as the "Buzzy Bees" update, introduced bees, honey blocks, and related items to the game. If you're looking for specifics on how to engage with a custom Eaglercraft server or project on 1.15, details would depend on the specific Eaglercraft project.