Spell & Ability API (Retail — Patch 12.0.0)

Comprehensive reference for all Spell, SpellBook, ActionBar, Cooldown, Totem, Shapeshifting, and related APIs. Covers spell information, cooldowns, usability, range checking, spellbook navigation, action bar slot management, spell procs, diminishing returns, assisted combat, and global spell functions.

Source of truth: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#Spell SpellBook: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#SpellBook ActionBar: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#ActionBar Current as of: Patch 12.0.0 (Build 65655) — January 28, 2026 Scope: Retail only. No deprecated or removed functions.

Scope

This skill covers these API systems: