Plugin NBT-API

NBT API, Flexible NBT Data for Minecraft Servers

NBT API is a Java Edition plugin and developer library that lets Bukkit, Spigot, Paper, Purpur, and Folia projects add custom NBT data or edit existing tags on items, entities, and tile entities without directly relying on NMS code. Its reflection based approach helps plugin developers maintain compatibility across many Minecraft versions while building custom items, mobs, inventories, and gameplay systems.

Values can also be copied or serialized for storage in files, YAML, JSON, SQL, or Redis, making the API useful for persistent server features. At BoxToPlay, we recommend it as a practical foundation for Minecraft server development when plugins need reliable, flexible data handling.