Villager API

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): VillagerAPIFabric did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/registry/RegistryEntryAddedCallback.

What it needs from Kiln

an access widener
Mixin
net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarted
net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents.ServerStarting
net.fabricmc.fabric.api.event.registry.RegistryEntryAddedCallback
net.fabricmc.loader.api.ModContainer
net.fabricmc.loader.api.metadata.ModMetadata
net.minecraft.core.HolderSet
net.minecraft.core.HolderSet.Named
net.minecraft.core.RegistryAccess
net.minecraft.core.RegistryAccess.Frozen
net.minecraft.core.component.DataComponents
net.minecraft.nbt.CompoundTag
net.minecraft.nbt.ListTag
net.minecraft.nbt.NbtAccounter
net.minecraft.nbt.NbtIo
net.minecraft.server.MinecraftServer
net.minecraft.server.packs.PackResources
net.minecraft.server.packs.PackType
net.minecraft.server.packs.VanillaPackResources
net.minecraft.server.packs.repository.ServerPacksSource
net.minecraft.server.packs.resources.IoSupplier
net.minecraft.server.packs.resources.Resource
net.minecraft.server.packs.resources.ResourceManager
net.minecraft.tags.TagKey
net.minecraft.util.Unit
net.minecraft.world.entity.ai.village.poi.PoiType
net.minecraft.world.entity.npc.villager.AbstractVillager
net.minecraft.world.entity.npc.villager.VillagerProfession
net.minecraft.world.entity.npc.villager.VillagerType
net.minecraft.world.item.CreativeModeTab.Builder
net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
net.minecraft.world.item.CreativeModeTab.Output
net.minecraft.world.item.MapItem
net.minecraft.world.item.component.MapDecorations
net.minecraft.world.item.trading.MerchantOffer
net.minecraft.world.item.trading.MerchantOffers
net.minecraft.world.item.trading.TradeSet
net.minecraft.world.item.trading.VillagerTrade
and 37 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

An API to add custom villager professions and villager biome types with custom trades without writing code.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file Villager-API-26.3-fabric-1.26.9.6.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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