1.12.2 — Eaglecraft

You can find the paper for EagleCraft 1.12.2 here:

You're looking for a paper, presumably a Minecraft server paper, specifically for EagleCraft 1.12.2. eaglecraft 1.12.2

If the link doesn't work or you need more information, feel free to ask! You can find the paper for EagleCraft 1

EagleCraft is a popular Minecraft server software, and I'll provide you with a direct link to the paper for version 1.12.2. presumably a Minecraft server paper