AnvilPilot

AnvilPilot is a free, browser-based Minecraft enchantment calculator for Java Edition 26.3. It helps Survival players plan a cheaper anvil work order before spending experience levels. Build a left-slot/right-slot sequence, see each step’s XP cost, and flag combinations that reach the “Too Expensive” limit of 40 levels in one Survival step. Anvil use adds a prior-work penalty of 2^n−1, so the combine order can change the cost or make a plan impossible. AnvilPilot searches combination trees for a selected item and materials and shows a slot-by-slot work order. Quick Plan assumes fresh enchanted books; Inventory Plan supports existing prior-work values and mixed books. Each step lists its inputs, level cost, and result. With up to eight sacrifices, Exact Optimal proves no plan ranks better under the selected objective; for nine to 32, deterministic bounded search returns Best Found without claiming optimality. The Java 26.3 ruleset covers enchantment costs, compatibility, prior work, and mixed-book behavior across 26 item groups and 43 enchantments. It does not calculate Bedrock rules, repairs, renaming, mods, or datapacks. Calculations run locally in the browser; Share Link stores validated inputs in the URL hash rather than on a server. Companion guides cover enchantments, prior-work penalties and the Too Expensive limit. Made by VastPace in China, AnvilPilot is free, requires no download, and is an unofficial community tool not affiliated with Mojang or Microsoft.