Packages 
Package Description
org.spongepowered.api  
org.spongepowered.api.advancement  
org.spongepowered.api.advancement.criteria  
org.spongepowered.api.advancement.criteria.trigger  
org.spongepowered.api.adventure  
org.spongepowered.api.asset  
org.spongepowered.api.block
An API section where "blocks" are represented.
org.spongepowered.api.block.entity  
org.spongepowered.api.block.entity.carrier  
org.spongepowered.api.block.entity.carrier.chest  
org.spongepowered.api.block.entity.carrier.furnace  
org.spongepowered.api.block.transaction  
org.spongepowered.api.client  
org.spongepowered.api.command  
org.spongepowered.api.command.exception  
org.spongepowered.api.command.manager  
org.spongepowered.api.command.parameter  
org.spongepowered.api.command.parameter.managed  
org.spongepowered.api.command.parameter.managed.clientcompletion  
org.spongepowered.api.command.parameter.managed.operator  
org.spongepowered.api.command.parameter.managed.standard  
org.spongepowered.api.command.registrar  
org.spongepowered.api.command.registrar.tree  
org.spongepowered.api.command.selector  
org.spongepowered.api.config  
org.spongepowered.api.data  
org.spongepowered.api.data.meta  
org.spongepowered.api.data.persistence  
org.spongepowered.api.data.type  
org.spongepowered.api.data.value  
org.spongepowered.api.datapack  
org.spongepowered.api.effect  
org.spongepowered.api.effect.particle  
org.spongepowered.api.effect.potion  
org.spongepowered.api.effect.sound  
org.spongepowered.api.effect.sound.music  
org.spongepowered.api.entity  
org.spongepowered.api.entity.ai.goal  
org.spongepowered.api.entity.ai.goal.builtin  
org.spongepowered.api.entity.ai.goal.builtin.creature  
org.spongepowered.api.entity.ai.goal.builtin.creature.horse  
org.spongepowered.api.entity.ai.goal.builtin.creature.target  
org.spongepowered.api.entity.attribute  
org.spongepowered.api.entity.attribute.type  
org.spongepowered.api.entity.explosive  
org.spongepowered.api.entity.explosive.fused  
org.spongepowered.api.entity.hanging  
org.spongepowered.api.entity.living  
org.spongepowered.api.entity.living.animal  
org.spongepowered.api.entity.living.animal.cow  
org.spongepowered.api.entity.living.animal.horse  
org.spongepowered.api.entity.living.animal.horse.llama  
org.spongepowered.api.entity.living.aquatic  
org.spongepowered.api.entity.living.aquatic.fish  
org.spongepowered.api.entity.living.aquatic.fish.school  
org.spongepowered.api.entity.living.golem  
org.spongepowered.api.entity.living.monster  
org.spongepowered.api.entity.living.monster.boss  
org.spongepowered.api.entity.living.monster.boss.dragon  
org.spongepowered.api.entity.living.monster.boss.dragon.phase  
org.spongepowered.api.entity.living.monster.guardian  
org.spongepowered.api.entity.living.monster.hoglin  
org.spongepowered.api.entity.living.monster.piglin  
org.spongepowered.api.entity.living.monster.raider  
org.spongepowered.api.entity.living.monster.raider.illager  
org.spongepowered.api.entity.living.monster.raider.illager.spellcaster  
org.spongepowered.api.entity.living.monster.skeleton  
org.spongepowered.api.entity.living.monster.slime  
org.spongepowered.api.entity.living.monster.spider  
org.spongepowered.api.entity.living.monster.zombie  
org.spongepowered.api.entity.living.player  
org.spongepowered.api.entity.living.player.chat  
org.spongepowered.api.entity.living.player.client  
org.spongepowered.api.entity.living.player.gamemode  
org.spongepowered.api.entity.living.player.server  
org.spongepowered.api.entity.living.player.tab  
org.spongepowered.api.entity.living.trader  
org.spongepowered.api.entity.projectile  
org.spongepowered.api.entity.projectile.arrow  
org.spongepowered.api.entity.projectile.explosive  
org.spongepowered.api.entity.projectile.explosive.fireball  
org.spongepowered.api.entity.vehicle  
org.spongepowered.api.entity.vehicle.minecart  
org.spongepowered.api.entity.vehicle.minecart.carrier  
org.spongepowered.api.entity.weather  
org.spongepowered.api.event  
org.spongepowered.api.event.action
A common root package of all Events that lack a common "Source" and "Target" such that only the "Action" is known.
org.spongepowered.api.event.advancement  
org.spongepowered.api.event.block  
org.spongepowered.api.event.block.entity  
org.spongepowered.api.event.cause.entity  
org.spongepowered.api.event.cause.entity.damage  
org.spongepowered.api.event.cause.entity.damage.source  
org.spongepowered.api.event.cause.entity.damage.source.common  
org.spongepowered.api.event.command  
org.spongepowered.api.event.data  
org.spongepowered.api.event.economy  
org.spongepowered.api.event.entity  
org.spongepowered.api.event.entity.ai  
org.spongepowered.api.event.entity.ai.goal  
org.spongepowered.api.event.entity.explosive  
org.spongepowered.api.event.entity.living  
org.spongepowered.api.event.entity.living.player  
org.spongepowered.api.event.filter
Event filter annotations.
org.spongepowered.api.event.filter.cause
Cause-based parameter source annotations for event listeners.
org.spongepowered.api.event.filter.data
Event filter annotations working on ValueContainer parameters.
org.spongepowered.api.event.filter.type
Listener method filters based on event type.
org.spongepowered.api.event.impl  
org.spongepowered.api.event.impl.data  
org.spongepowered.api.event.impl.entity  
org.spongepowered.api.event.impl.entity.ai.goal  
org.spongepowered.api.event.item.inventory  
org.spongepowered.api.event.item.inventory.container  
org.spongepowered.api.event.lifecycle  
org.spongepowered.api.event.message  
org.spongepowered.api.event.network  
org.spongepowered.api.event.network.rcon  
org.spongepowered.api.event.permission  
org.spongepowered.api.event.server  
org.spongepowered.api.event.server.query  
org.spongepowered.api.event.sound  
org.spongepowered.api.event.user  
org.spongepowered.api.event.world  
org.spongepowered.api.event.world.chunk  
org.spongepowered.api.fluid
The base Fluid API that attempts to bridge the Data API and Forges Fluid API.
org.spongepowered.api.item  
org.spongepowered.api.item.enchantment  
org.spongepowered.api.item.inventory  
org.spongepowered.api.item.inventory.crafting  
org.spongepowered.api.item.inventory.entity  
org.spongepowered.api.item.inventory.equipment  
org.spongepowered.api.item.inventory.menu  
org.spongepowered.api.item.inventory.menu.handler  
org.spongepowered.api.item.inventory.query  
org.spongepowered.api.item.inventory.slot  
org.spongepowered.api.item.inventory.transaction  
org.spongepowered.api.item.inventory.type  
org.spongepowered.api.item.merchant  
org.spongepowered.api.item.potion  
org.spongepowered.api.item.recipe  
org.spongepowered.api.item.recipe.cooking  
org.spongepowered.api.item.recipe.crafting  
org.spongepowered.api.item.recipe.single  
org.spongepowered.api.item.recipe.smithing  
org.spongepowered.api.map  
org.spongepowered.api.map.color  
org.spongepowered.api.map.decoration  
org.spongepowered.api.map.decoration.orientation  
org.spongepowered.api.network  
org.spongepowered.api.network.channel  
org.spongepowered.api.network.channel.packet  
org.spongepowered.api.network.channel.packet.basic  
org.spongepowered.api.network.channel.raw  
org.spongepowered.api.network.channel.raw.handshake  
org.spongepowered.api.network.channel.raw.play  
org.spongepowered.api.network.status  
org.spongepowered.api.placeholder  
org.spongepowered.api.plugin  
org.spongepowered.api.profile  
org.spongepowered.api.profile.property  
org.spongepowered.api.projectile.source  
org.spongepowered.api.raid  
org.spongepowered.api.registry  
org.spongepowered.api.resourcepack  
org.spongepowered.api.scheduler  
org.spongepowered.api.scoreboard  
org.spongepowered.api.scoreboard.criteria  
org.spongepowered.api.scoreboard.displayslot  
org.spongepowered.api.scoreboard.objective  
org.spongepowered.api.scoreboard.objective.displaymode  
org.spongepowered.api.service  
org.spongepowered.api.service.ban  
org.spongepowered.api.service.context  
org.spongepowered.api.service.economy  
org.spongepowered.api.service.economy.account  
org.spongepowered.api.service.economy.transaction  
org.spongepowered.api.service.pagination  
org.spongepowered.api.service.permission  
org.spongepowered.api.service.rcon  
org.spongepowered.api.service.whitelist  
org.spongepowered.api.spawner  
org.spongepowered.api.sql  
org.spongepowered.api.state
A fallback API for handling properties of BlockStates such that the values that are not directly supported by the API can still be represented with a StateProperty.
org.spongepowered.api.statistic  
org.spongepowered.api.tag  
org.spongepowered.api.user  
org.spongepowered.api.util  
org.spongepowered.api.util.annotation  
org.spongepowered.api.util.annotation.eventgen  
org.spongepowered.api.util.blockray  
org.spongepowered.api.util.file  
org.spongepowered.api.util.locale  
org.spongepowered.api.util.metric  
org.spongepowered.api.util.mirror  
org.spongepowered.api.util.orientation  
org.spongepowered.api.util.rotation  
org.spongepowered.api.util.transformation  
org.spongepowered.api.util.weighted  
org.spongepowered.api.world  
org.spongepowered.api.world.biome  
org.spongepowered.api.world.biome.provider  
org.spongepowered.api.world.biome.provider.multinoise  
org.spongepowered.api.world.border  
org.spongepowered.api.world.chunk  
org.spongepowered.api.world.client  
org.spongepowered.api.world.difficulty  
org.spongepowered.api.world.explosion  
org.spongepowered.api.world.gamerule  
org.spongepowered.api.world.generation  
org.spongepowered.api.world.generation.config  
org.spongepowered.api.world.generation.config.flat  
org.spongepowered.api.world.generation.config.noise  
org.spongepowered.api.world.generation.config.structure  
org.spongepowered.api.world.generation.structure  
org.spongepowered.api.world.portal  
org.spongepowered.api.world.schematic  
org.spongepowered.api.world.server  
org.spongepowered.api.world.server.storage  
org.spongepowered.api.world.storage  
org.spongepowered.api.world.teleport  
org.spongepowered.api.world.volume  
org.spongepowered.api.world.volume.archetype  
org.spongepowered.api.world.volume.archetype.block.entity  
org.spongepowered.api.world.volume.archetype.entity  
org.spongepowered.api.world.volume.biome  
org.spongepowered.api.world.volume.block  
org.spongepowered.api.world.volume.block.entity  
org.spongepowered.api.world.volume.entity  
org.spongepowered.api.world.volume.game  
org.spongepowered.api.world.volume.stream  
org.spongepowered.api.world.volume.virtual  
org.spongepowered.api.world.weather