wow-api-spells-abilities

Spell & Ability API (Retail — Patch 12.0.0)

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Install skill "wow-api-spells-abilities" with this command: npx skills add jburlison/wowaddonapiagents/jburlison-wowaddonapiagents-wow-api-spells-abilities

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:

  • C_Spell — Core spell information, cooldowns, charges, usability, range, type checks

  • C_SpellBook — Spellbook navigation, skill lines, slot queries, spell lookup

  • C_ActionBar — Action bar slot management, state queries, bar pages, overrides

  • C_SpellActivationOverlay — Spell proc/activation glow detection

  • C_SpellDiminish — Diminishing returns tracking for crowd control

  • C_CooldownViewer — Cooldown viewer categories and layout

  • C_AssistedCombat — Assisted combat (rotation helper) integration

  • Totem — Totem query functions (GetTotemInfo, DestroyTotem)

  • Shapeshifting — Form/stance functions (GetShapeshiftForm, GetShapeshiftFormInfo)

  • Global Spell Functions — CastSpellByName, CastSpellByID, SpellIsTargeting, etc.

When to Use This Skill

Use this skill when you need to:

  • Query spell info: name, description, icon, subtext, link, power cost

  • Check spell cooldowns, charges, or GCD state

  • Determine if a spell is usable, in range, or on cooldown

  • Navigate the spellbook: enumerate skill lines, find spell slots, check known spells

  • Manage action bars: query action type, usability, cooldown, texture for a slot

  • Detect action bar pages, bonus bars, override bars, vehicle bars

  • Check for spell procs / activation overlays (glowing buttons)

  • Track diminishing returns on crowd control effects

  • Query totem state, duration, or destroy totems

  • Check or cast shapeshift forms and stances

  • Cast spells programmatically (protected functions)

  • Handle spell targeting (SpellIsTargeting, SpellTargetUnit, SpellStopCasting)

  • Use the assisted combat (rotation helper) system

  • Work with flyout menus and multi-cast totem spells

Reference Files

Reference Contents

SPELLS-CORE.md C_Spell — spell info, cooldowns, charges, usability, range, type checks

SPELLBOOK.md C_SpellBook — spellbook navigation, skill lines, slot queries

ACTIONBAR.md C_ActionBar — action bar slots, state, pages, overrides, pet/vehicle bars

COOLDOWNS-CASTING.md Cooldowns, casting functions, spell targeting, procs, DR, assisted combat

TOTEM-SHAPESHIFT.md Totem functions, shapeshifting/stances, global spell casting functions

C_Spell — Core Spell API (Quick Reference)

The C_Spell namespace provides direct access to spell data by spellIdentifier — which can be a spellID (number) or spellName (string).

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#Spell

Key Functions

Function Returns Description

C_Spell.GetSpellInfo(spellIdentifier)

spellInfo table Primary spell data (name, icon, castTime, etc.)

C_Spell.GetSpellName(spellIdentifier)

name

Localized spell name

C_Spell.GetSpellDescription(spellIdentifier)

description

Tooltip description text

C_Spell.GetSpellTexture(spellIdentifier)

iconID, originalIconID

Spell icon texture

C_Spell.GetSpellSubtext(spellIdentifier)

subtext

Rank or specialization label

C_Spell.GetSpellLink(spellIdentifier [, glyphID])

spellLink

Clickable hyperlink

C_Spell.DoesSpellExist(spellIdentifier)

spellExists

Validates a spell ID/name

C_Spell.GetSpellIDForSpellIdentifier(spellIdentifier)

spellID

Resolves spell name → ID

C_Spell.GetBaseSpell(spellIdentifier [, spec])

baseSpellID

Unwraps overrides to base spell

C_Spell.GetOverrideSpell(spellIdentifier [, spec [, onlyKnown [, ignoreOverrideID]]])

overrideSpellID

Gets current override for a spell

Cooldowns & Charges

Function Returns Description

C_Spell.GetSpellCooldown(spellIdentifier)

spellCooldownInfo

Start time, duration, enabled, modRate

C_Spell.GetSpellCooldownDuration(spellIdentifier)

duration

Remaining cooldown in seconds

C_Spell.GetSpellCharges(spellIdentifier)

chargeInfo

Charges, maxCharges, start, duration

C_Spell.GetSpellChargeDuration(spellIdentifier)

duration

Charge recharge duration

C_Spell.GetSpellLossOfControlCooldown(spellIdentifier)

startTime, duration

LoC lockout timing

C_Spell.GetSpellLossOfControlCooldownDuration(spellIdentifier)

duration

Remaining LoC duration

Usability & Range

Function Returns Description

C_Spell.IsSpellUsable(spellIdentifier)

isUsable, insufficientPower

Can be cast now?

C_Spell.IsSpellInRange(spellIdentifier [, targetUnit])

inRange

Target in range?

C_Spell.SpellHasRange(spellIdentifier)

hasRange

Does the spell have range?

C_Spell.IsSpellDisabled(spellIdentifier)

disabled

Is spell disabled?

C_Spell.GetSpellCastCount(spellIdentifier)

castCount

Number of available casts

Type Checks

Function Returns Description

C_Spell.IsSpellPassive(spellIdentifier)

isPassive

Passive ability?

C_Spell.IsSpellHarmful(spellIdentifier)

isHarmful

Offensive spell?

C_Spell.IsSpellHelpful(spellIdentifier)

isHelpful

Beneficial spell?

C_Spell.IsAutoAttackSpell(spellIdentifier)

isAutoAttack

Auto-attack?

C_Spell.IsAutoRepeatSpell(spellIdentifier)

isAutoRepeat

Auto-repeat (e.g., Auto Shot)?

C_Spell.IsRangedAutoAttackSpell(spellIdentifier)

isRangedAutoAttack

Ranged auto-attack?

C_Spell.IsCurrentSpell(spellIdentifier)

isCurrentSpell

Currently being cast?

C_Spell.IsConsumableSpell(spellIdentifier)

consumable

Consumes a resource on use?

C_Spell.IsPressHoldReleaseSpell(spellIdentifier)

isPressHoldRelease

Empowered spell?

C_Spell.IsClassTalentSpell(spellIdentifier)

isClassTalent

From the talent tree?

C_Spell.IsPvPTalentSpell(spellIdentifier)

isPvPTalent

PvP talent?

C_Spell.IsSpellCrowdControl(spellIdentifier)

isCrowdControl

CC effect?

C_Spell.IsSpellImportant(spellIdentifier)

isImportant

Marked as important?

C_Spell.IsPriorityAura(spellID)

isHighPriority

High-priority display aura?

C_Spell.IsSelfBuff(spellID)

hasSelfEffectsOnly

Only affects self?

C_Spell.IsExternalDefensive(spellID)

isExternalDefensive

External defensive?

Power Cost & Data

Function Returns Description

C_Spell.GetSpellPowerCost(spellIdentifier)

powerCosts table Resources required to cast

C_Spell.GetSpellLevelLearned(spellIdentifier)

levelLearned

Level at which spell is learned

C_Spell.GetSpellSkillLineAbilityRank(spellIdentifier)

rank

Rank for profession recipes

C_Spell.GetSpellMaxCumulativeAuraApplications(spellID)

cumulativeAura

Max stacks

C_Spell.GetAuraStatChanges(spellID)

healthChange, powerTypeChanges

Stat effects of an aura

C_Spell.GetDeadlyDebuffInfo(spellIdentifier)

deadlyDebuffInfo

Deadly debuff display data

C_Spell.GetSpellQueueWindow()

result

Spell queue window (ms)

Spell Manipulation

Function Returns Description

C_Spell.CancelSpellByID(spellID)

— Cancel a channeled/cast spell

C_Spell.PickupSpell(spellIdentifier)

— Attach spell to cursor

C_Spell.RequestLoadSpellData(spellIdentifier)

— Request async spell data load

C_Spell.IsSpellDataCached(spellIdentifier)

isCached

Is data ready for query?

C_Spell.EnableSpellRangeCheck(spellIdentifier, enable)

— Enable/disable range checking

C_Spell.SetSpellAutoCastEnabled(spellIdentifier, enabled)

— Toggle pet spell autocast

C_Spell.ToggleSpellAutoCast(spellIdentifier)

— Toggle pet spell autocast

C_Spell.GetSpellAutoCast(spellIdentifier)

autoCastAllowed, autoCastEnabled

Autocast state

Visibility & Display

Function Returns Description

C_Spell.GetVisibilityInfo(spellID, visibilityType)

hasCustom, alwaysShowMine, showForMySpec

Aura display visibility rules

C_Spell.GetSpellDisplayCount(spellIdentifier [, maxDisplayCount [, replacementString]])

displayCount

Display count for stacking

Targeting & Trade

Function Returns Description

C_Spell.TargetSpellIsEnchanting()

isEnchanting

Current targeting spell is enchant?

C_Spell.TargetSpellJumpsUpgradeTrack()

jumpsUpgradeTrack

Upgrade track jump?

C_Spell.TargetSpellReplacesBonusTree()

result

Replaces bonus loot tree?

C_Spell.GetSpellTradeSkillLink(spellIdentifier)

spellLink

Trade skill recipe link

C_SpellBook — Spellbook Navigation (Quick Reference)

The C_SpellBook namespace manages the spellbook UI, skill lines, and per-slot queries. Functions take (spellBookItemSlotIndex, spellBookItemSpellBank) where spellBank is Enum.SpellBookSpellBank.Player or Enum.SpellBookSpellBank.Pet .

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#SpellBook

Key Functions

Function Returns Description

C_SpellBook.GetNumSpellBookSkillLines()

numSkillLines

Number of spellbook tabs

C_SpellBook.GetSpellBookSkillLineInfo(skillLineIndex)

skillLineInfo

Tab name, icon, offset, count

C_SpellBook.GetSpellBookItemInfo(slot, bank)

spellBookItemInfo

Detailed spell/flyout info for a slot

C_SpellBook.GetSpellBookItemType(slot, bank)

itemType, actionID, spellID

Type: SPELL, FLYOUT, FUTURESPELL, PETACTION

C_SpellBook.GetSpellBookItemName(slot, bank)

name, subName

Localized name of slot

C_SpellBook.GetSpellBookItemTexture(slot, bank)

iconID

Icon for slot

C_SpellBook.GetSpellBookItemDescription(slot, bank)

description

Tooltip text

C_SpellBook.GetSpellBookItemLink(slot, bank [, glyphID])

spellLink

Hyperlink

C_SpellBook.GetSpellBookItemLevelLearned(slot, bank)

levelLearned

Level learned

C_SpellBook.FindSpellBookSlotForSpell(spellIdentifier [, includeHidden [, includeFlyouts [, includeFutureSpells [, includeOffSpec]]]])

slotIndex, bank

Find slot for a spell

C_SpellBook.IsSpellKnown(spellID [, spellBank])

isKnown

Does the player know the spell?

C_SpellBook.IsSpellInSpellBook(spellID [, spellBank [, includeOverrides]])

isInSpellBook

Is it in the spellbook?

C_SpellBook.IsSpellKnownOrInSpellBook(spellID [, spellBank [, includeOverrides]])

isKnownOrInSpellBook

Known OR in spellbook?

Slot Usability & State

Function Returns Description

C_SpellBook.IsSpellBookItemUsable(slot, bank)

isUsable, insufficientPower

Can cast from this slot?

C_SpellBook.IsSpellBookItemPassive(slot, bank)

isPassive

Passive ability?

C_SpellBook.IsSpellBookItemOffSpec(slot, bank)

isOffSpec

Belongs to inactive spec?

C_SpellBook.IsSpellBookItemHarmful(slot, bank)

isHarmful

Harmful to targets?

C_SpellBook.IsSpellBookItemHelpful(slot, bank)

isHelpful

Helpful to targets?

C_SpellBook.IsSpellBookItemInRange(slot, bank [, targetUnit])

inRange

In range of target?

C_SpellBook.SpellBookItemHasRange(slot, bank)

hasRange

Has range requirement?

C_SpellBook.IsAutoAttackSpellBookItem(slot, bank)

isAutoAttack

Auto-attack entry?

C_SpellBook.IsRangedAutoAttackSpellBookItem(slot, bank)

isRangedAutoAttack

Ranged auto-attack?

C_SpellBook.IsClassTalentSpellBookItem(slot, bank)

isClassTalent

Class talent?

C_SpellBook.IsPvPTalentSpellBookItem(slot, bank)

isPvPTalent

PvP talent?

Slot Cooldowns & Charges

Function Returns Description

C_SpellBook.GetSpellBookItemCooldown(slot, bank)

spellCooldownInfo

Cooldown for slot

C_SpellBook.GetSpellBookItemCooldownDuration(slot, bank)

duration

Remaining cooldown

C_SpellBook.GetSpellBookItemCharges(slot, bank)

chargeInfo

Charge info

C_SpellBook.GetSpellBookItemChargeDuration(slot, bank)

duration

Charge recharge time

C_SpellBook.GetSpellBookItemCastCount(slot, bank)

castCount

Available casts

C_SpellBook.GetSpellBookItemLossOfControlCooldown(slot, bank)

startTime, duration

LoC lockout

C_SpellBook.GetSpellBookItemLossOfControlCooldownDuration(slot, bank)

duration

Remaining LoC

Spell Lookup

Function Returns Description

C_SpellBook.FindBaseSpellByID(spellID)

baseSpellID

Resolve to base spell

C_SpellBook.FindSpellOverrideByID(spellID)

overrideSpellID

Get current override

C_SpellBook.GetCurrentLevelSpells(level)

spellIDs

Spells learned at a level

C_SpellBook.GetSkillLineIndexByID(skillLineID)

skillIndex

Skill line index by ID

C_SpellBook.HasPetSpells()

numPetSpells, petNameToken

Does the pet have spells?

C_SpellBook.ContainsAnyDisenchantSpell()

contains

Has disenchant?

C_SpellBook.FindFlyoutSlotBySpellID(spellID)

flyoutSlot

Find flyout containing spell

Other Slot Operations

Function Returns Description

C_SpellBook.CastSpellBookItem(slot, bank [, targetSelf])

— Cast from spellbook slot

C_SpellBook.PickupSpellBookItem(slot, bank)

— Pick up spell to cursor

C_SpellBook.GetSpellBookItemAutoCast(slot, bank)

autoCastAllowed, autoCastEnabled

Autocast state

C_SpellBook.SetSpellBookItemAutoCastEnabled(slot, bank, enabled)

— Set autocast

C_SpellBook.ToggleSpellBookItemAutoCast(slot, bank)

— Toggle autocast

C_SpellBook.GetSpellBookItemPowerCost(slot, bank)

powerCosts

Resource cost

C_SpellBook.GetSpellBookItemTradeSkillLink(slot, bank)

spellLink

Trade skill link

C_SpellBook.GetSpellBookItemSkillLineIndex(slot, bank)

skillLineIndex

Which skill line tab

C_ActionBar — Action Bar Slot Management (Quick Reference)

The C_ActionBar namespace manages the 120+ action bar slots. Actions are referenced by actionID (1–180) or slotID .

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#ActionBar

Action Slot Layout

Bar Slots Notes

Main bar 1–12 Always visible

Bar 2 (Bottom Left) 13–24 Toggled via settings

Bar 3 (Bottom Right) 25–36 Toggled via settings

Bar 4 (Right) 37–48 Toggled via settings

Bar 5 (Right 2) 49–60 Toggled via settings

Bars 6–10 61–120 Additional bars

StanceBar pages 121–180 Stance-specific bars

Core Queries

Function Returns Description

C_ActionBar.HasAction(actionID)

hasAction

Is something in this slot?

C_ActionBar.GetSpell(actionID)

spellID

Spell in slot (nil if not a spell)

C_ActionBar.GetActionTexture(actionID)

textureFileID

Icon for the action

C_ActionBar.GetActionText(actionID)

text

Display text (macros)

C_ActionBar.GetActionCooldown(actionID)

cooldownInfo

Cooldown data

C_ActionBar.GetActionCooldownDuration(actionID)

duration

Remaining cooldown

C_ActionBar.GetActionChargeDuration(actionID)

duration

Charge recharge time

C_ActionBar.GetActionCharges(actionID)

chargeInfo

Charge state

C_ActionBar.IsUsableAction(actionID)

isUsable, isLackingResources

Can use?

C_ActionBar.IsActionInRange(actionID [, target])

isInRange

Target in range?

Action State Checks

Function Returns Description

C_ActionBar.IsCurrentAction(actionID)

isCurrentAction

Being cast now?

C_ActionBar.IsAttackAction(actionID)

isAttackAction

Auto-attack?

C_ActionBar.IsAutoRepeatAction(actionID)

isAutoRepeatAction

Auto-repeat?

C_ActionBar.IsConsumableAction(actionID)

isConsumableAction

Consumable?

C_ActionBar.IsEquippedAction(actionID)

isEquippedAction

Equipped item?

C_ActionBar.IsStackableAction(actionID)

isStackableAction

Stackable item?

C_ActionBar.IsItemAction(actionID)

isItemAction

Item action?

C_ActionBar.IsHarmfulAction(actionID, useNeutral)

isHarmful

Harmful?

C_ActionBar.IsHelpfulAction(actionID, useNeutral)

isHelpful

Helpful?

C_ActionBar.IsInterruptAction(slotID)

isInterruptAction

Interrupt?

C_ActionBar.IsAssistedCombatAction(slotID)

isAssistedCombat

Assisted combat action?

C_ActionBar.HasRangeRequirements(actionID)

hasRangeRequirements

Has range?

Bar Pages & Overrides

Function Returns Description

C_ActionBar.GetActionBarPage()

currentPage

Current page (1–6)

C_ActionBar.SetActionBarPage(pageIndex)

— Switch page

C_ActionBar.GetBonusBarIndex()

bonusBarIndex

Class-specific bonus bar

C_ActionBar.GetBonusBarOffset()

bonusBarOffset

Offset for bonus bar

C_ActionBar.HasBonusActionBar()

hasBonusActionBar

Has bonus bar?

C_ActionBar.GetOverrideBarIndex()

overrideBarIndex

Override bar index

C_ActionBar.GetOverrideBarSkin()

textureFileID

Override bar texture

C_ActionBar.HasOverrideActionBar()

hasOverrideActionBar

Override active?

C_ActionBar.GetExtraBarIndex()

extraBarIndex

Extra action button bar

C_ActionBar.HasExtraActionBar()

hasExtraActionBar

Extra bar active?

C_ActionBar.GetVehicleBarIndex()

vehicleBarIndex

Vehicle bar index

C_ActionBar.HasVehicleActionBar()

hasVehicleActionBar

In vehicle?

C_ActionBar.GetTempShapeshiftBarIndex()

tempShapeshiftBarIndex

Temp shapeshift bar

C_ActionBar.HasTempShapeshiftActionBar()

hasTempShapeshiftActionBar

Has temp form bar?

C_ActionBar.GetMultiCastBarIndex()

multiCastBarIndex

Multi-cast bar (totem)

C_ActionBar.ShouldOverrideBarShowHealthBar()

showHealthBar

Show health bar?

C_ActionBar.ShouldOverrideBarShowManaBar()

showManaBar

Show mana bar?

C_ActionBar.IsPossessBarVisible()

isPossessBarVisible

Possess bar visible?

Display & Count

Function Returns Description

C_ActionBar.GetActionDisplayCount(actionID [, maxDisplayCount [, replacementString]])

displayCount

Display count for stacking

C_ActionBar.GetActionUseCount(actionID)

count

Remaining uses

C_ActionBar.GetActionAutocast(actionID)

autoCastAllowed, autoCastEnabled

Autocast state

C_ActionBar.GetActionLossOfControlCooldown(actionID)

startTime, duration

LoC cooldown

C_ActionBar.GetActionLossOfControlCooldownDuration(actionID)

duration

Remaining LoC

Spell ↔ Action Lookups

Function Returns Description

C_ActionBar.FindSpellActionButtons(spellID)

slots

Find all slots containing a spell

C_ActionBar.HasSpellActionButtons(spellID)

hasButtons

Is spell on any bar?

C_ActionBar.IsOnBarOrSpecialBar(spellID)

isOnBar

On any bar or special bar?

C_ActionBar.FindFlyoutActionButtons(flyoutID)

slots

Find flyout button slots

C_ActionBar.HasFlyoutActionButtons(flyoutID)

hasFlyoutButtons

Flyout on bar?

C_ActionBar.FindPetActionButtons(petActionID)

slots

Pet action on bar?

C_ActionBar.HasPetActionButtons(petActionID)

hasPetButtons

Pet action exists?

C_ActionBar.FindAssistedCombatActionButtons()

slots

Assisted combat slots

C_ActionBar.HasAssistedCombatActionButtons()

hasButtons

Has assisted combat?

C_ActionBar.GetPetActionPetBarIndices(petActionID)

slots

Pet bar indices

C_ActionBar.HasPetActionPetBarIndices(petActionID)

hasIndices

Has pet bar indices?

Profession & Gear

Function Returns Description

C_ActionBar.GetProfessionQuality(actionID)

quality

Crafting result quality

C_ActionBar.GetProfessionQualityInfo(actionID)

info

Quality info table

C_ActionBar.GetItemActionOnEquipSpellID(actionID)

onEquipSpellID

On-equip spell ID

C_ActionBar.IsEquippedGearOutfitAction(slotID)

isEquipped

Gear outfit equipped?

C_ActionBar.GetBonusBarIndexForSlot(slotID)

bonusBarIndex

Bonus bar for slot

Slot Management

Function Returns Description

C_ActionBar.PutActionInSlot(slotID)

— Place cursor action into slot

C_ActionBar.RegisterActionUIButton(checkboxFrame, actionID, cooldownFrame)

— Register frame for updates

C_ActionBar.UnregisterActionUIButton(checkboxFrame)

— Unregister frame

C_ActionBar.ForceUpdateAction(slotID)

— Force action update

C_ActionBar.EnableActionRangeCheck(actionID, enable)

— Enable/disable range check

C_ActionBar.ToggleAutoCastPetAction(slotID)

— Toggle pet autocast

C_ActionBar.IsAutoCastPetAction(slotID)

isAutoCastPetAction

Pet autocast?

C_ActionBar.IsEnabledAutoCastPetAction(slotID)

isEnabled

Pet autocast enabled?

Auxiliary Namespaces (Quick Reference)

C_SpellActivationOverlay — Spell Procs

Detects when a spell has a visual activation overlay (glowing border / proc alert).

Function Returns Description

C_SpellActivationOverlay.IsSpellOverlayed(spellID)

isOverlayed

Spell has active proc glow?

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#SpellActivationOverlay

C_SpellDiminish — Diminishing Returns

Tracks diminishing returns (DR) categories for crowd control and interrupt tracking.

Function Returns Description

C_SpellDiminish.GetAllSpellDiminishCategories([ruleset])

categories

All DR categories

C_SpellDiminish.GetSpellDiminishCategoryInfo(category)

categoryInfo

Info for a DR category

C_SpellDiminish.IsSystemSupported()

isSupported

Is DR tracking available?

C_SpellDiminish.ShouldTrackSpellDiminishCategory(category, ruleset)

isTracked

Should this category be tracked?

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#SpellDiminishUI

C_CooldownViewer — Cooldown Display

Provides categorized cooldown data for the cooldown viewer UI.

Function Returns Description

C_CooldownViewer.GetCooldownViewerCategorySet(category [, allowUnlearned])

cooldownIDs

Cooldowns in a category

C_CooldownViewer.GetCooldownViewerCooldownInfo(cooldownID)

cooldownInfo

Cooldown details

C_CooldownViewer.GetLayoutData()

data

Viewer layout state

C_CooldownViewer.GetValidAlertTypes(cooldownID)

validAlertTypes

Valid alert types for cooldown

C_CooldownViewer.IsCooldownViewerAvailable()

isAvailable, failureReason

Is viewer available?

C_CooldownViewer.SetLayoutData(data)

— Save layout state

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#CooldownViewer

C_AssistedCombat — Rotation Helper

The Assisted Combat system (new in 12.0) provides suggested spell rotations.

Function Returns Description

C_AssistedCombat.GetActionSpell()

spellID

Current action spell suggestion

C_AssistedCombat.GetNextCastSpell([checkForVisibleButton])

spellID

Next suggested cast

C_AssistedCombat.GetRotationSpells()

spellIDs

All rotation spells

C_AssistedCombat.IsAvailable()

isAvailable, failureReason

Is system available?

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#AssistedCombat

C_LevelLink — Spell Level Lock

Checks if spells or actions are level-locked for scaling content.

Function Returns Description

C_LevelLink.IsActionLocked(actionID)

isLocked

Action locked by level?

C_LevelLink.IsSpellLocked(spellID)

isLocked

Spell locked by level?

Totem Functions

Totem functions query and manage totem/minion slots. Shamans have 4 totem slots; other classes may have totem-style minions (e.g., Death Knight ghouls, mushrooms).

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#Totem

Function Returns Description

GetTotemInfo(slot)

haveTotem, totemName, startTime, duration, icon, modRate, spellID

Complete totem info

GetTotemTimeLeft(slot)

timeLeft

Remaining duration (seconds)

GetTotemCannotDismiss(slot)

cannotDismiss

Can this totem be dismissed?

DestroyTotem(slot)

— Destroy totem/minion #protected

TargetTotem(slot)

— Target the totem

totem Slot Constants

EARTH_TOTEM_SLOT = 2 FIRE_TOTEM_SLOT = 1 WATER_TOTEM_SLOT = 3 AIR_TOTEM_SLOT = 4

Shapeshifting / Stances

Manages shapeshift forms (Druid forms, Warrior stances, Rogue stealth, Paladin auras, etc.).

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API#Shapeshifting

Category: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API (Shapeshifting section)

Function Returns Description

GetNumShapeshiftForms()

numForms

Number of available forms

GetShapeshiftForm([flag])

index

Current form (0 = none)

GetShapeshiftFormID()

index

Form ID of current form

GetShapeshiftFormInfo(index)

icon, active, castable, spellID

Info for a form

GetShapeshiftFormCooldown(index)

startTime, duration, isActive

Cooldown for a form

CancelShapeshiftForm()

— Leave current form #protected

CastShapeshiftForm(index)

— Enter a form #protected

Global Spell Casting Functions

These are category-level functions (not namespaced) for casting, targeting, and confirming spells.

Wiki: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API (Spells category)

Casting (Protected)

Function Description

CastSpell(spellIndex, spellbookType)

Cast from spellbook by index #protected

CastSpellByID(spellID [, target])

Cast by spell ID #protected

CastSpellByName(name [, target])

Cast by name #protected

UseAction(slot [, checkCursor [, onSelf]])

Use action bar slot #protected

SpellStopCasting()

Stop current cast #protected

Targeting (Protected)

Function Description

SpellIsTargeting()

Is a spell waiting for target selection?

SpellCanTargetUnit(unit)

Can the pending spell target this unit?

SpellTargetUnit(unit)

Cast pending spell on unit #protected

SpellStopTargeting()

Cancel pending spell targeting #protected

SpellTargetItem(item)

Cast pending spell on item #protected

SpellCanTargetItem()

Can pending spell target an item?

SpellCanTargetItemID()

Can pending spell target an item ID?

SpellCanTargetQuest()

Can pending spell target a quest?

SpellCancelQueuedSpell()

Cancel queued spell

CancelSpellByName(name)

Cancel channeling by name #nocombat

Spell Confirmation

Function Description

AcceptSpellConfirmationPrompt(spellID)

Accept a spell confirmation dialog

DeclineSpellConfirmationPrompt(spellID)

Decline a spell confirmation dialog

GetSpellConfirmationPromptsInfo()

Get pending confirmations

Action Button Helpers

Function Returns Description

GetActionInfo(slot)

actionType, id, subType

What's in this action slot?

GetActionBarToggles()

bar1..bar7

Which extra bars are visible

SetActionBarToggles(bar1..bar7, alwaysShow)

— Set visibility of extra bars

PetHasActionBar()

hasActionBar

Does pet have an action bar?

GetPossessInfo(index)

texture, spellID, enabled

Possession bar info

Flyouts

Function Returns Description

GetFlyoutInfo(flyoutID)

name, description, numSlots, isKnown

Flyout menu info

GetFlyoutSlotInfo(flyoutID, slot)

flyoutSpellID, overrideSpellID, isKnown, spellName, slotSpecID

Individual flyout slot

FlyoutHasSpell(flyoutID, spellID)

hasSpell

Does flyout contain spell?

GetNumFlyouts()

count Total flyout count

FindSpellBookSlotBySpellID(spellID [, isPet])

slot Legacy slot lookup

Combat Pet Actions

Function Returns Description

CastPetAction(index [, target])

— Cast pet action #protected

GetPetActionCooldown(index)

startTime, duration, enable

Pet action cooldown

GetPetActionInfo(index)

name, texture, isToken, isActive, autoCastAllowed, autoCastEnabled, spellID, checksRange, inRange

Full pet action info

GetPetActionSlotUsable(index)

isUsable

Can use this pet action?

Multi-Cast / Totem Bar

Function Returns Description

GetMultiCastTotemSpells(slot)

totem1..totem7

Valid spells for a totem slot

SetMultiCastSpell(actionID, spellID)

— Set totem bar spell #protected

Misc Spell Helpers

Function Returns Description

GetSpellBaseCooldown(spellID)

cooldownMS, gcdMS

Base cooldown in milliseconds

IsSelectedSpellBookItem(spellSlot)

bool Is this slot selected?

CancelUnitBuff(unit, buffIndex [, filter])

— Remove a buff #nocombat

QueryCastSequence(sequence)

index, item, spell Preview next step in /castsequence

Patch 12.0.0 — Secret Values Impact

Spell-related APIs are significantly affected by Secret Values in Patch 12.0.0:

C_Secrets Predicates for Spells

Function Returns Description

C_Secrets.GetSpellCastSecrecy(spellIdentifier)

secrecy

Cast info secret level

C_Secrets.GetSpellCooldownSecrecy(spellIdentifier)

secrecy

Cooldown data secret level

C_Secrets.GetSpellAuraSecrecy(spellIdentifier)

secrecy

Aura data secret level

C_Secrets.ShouldCooldownsBeSecret()

hasSecretCooldowns

Any cooldowns secret?

C_Secrets.ShouldSpellCooldownBeSecret(spellIdentifier)

isCooldownSecret

This spell's CD secret?

C_Secrets.ShouldSpellAuraBeSecret(spellIdentifier)

isAuraSecret

This spell's aura secret?

C_Secrets.ShouldSpellBookItemCooldownBeSecret(slot, bank)

isCooldownSecret

Spellbook slot CD secret?

C_Secrets.ShouldActionCooldownBeSecret(actionID)

isCooldownSecret

Action slot CD secret?

C_Secrets.ShouldTotemSlotBeSecret(slot)

isTotemSecret

Totem info secret?

C_Secrets.ShouldTotemSpellBeSecret(spellID)

isTotemSecret

Specific totem spell secret?

C_Secrets.ShouldUnitSpellCastBeSecret(unit, spellIdentifier)

isSpellCastSecret

Cast info secret?

C_Secrets.ShouldUnitSpellCastingBeSecret(unit)

isSpellCastingSecret

All cast info for unit secret?

What Returns Secrets

  • Cooldown times — C_Spell.GetSpellCooldown() may return secret start /duration when C_Secrets.ShouldSpellCooldownBeSecret() is true

  • Spell cast info — UnitCastingInfo() / UnitChannelInfo() return secret fields when unit identity is restricted

  • Totem info — GetTotemInfo() may return secret startTime /duration when the totem spell is secret

Safe Patterns

-- Safe: Pass cooldown secrets directly to Cooldown widget local cdInfo = C_Spell.GetSpellCooldown(spellID) myCooldownFrame:SetCooldown(cdInfo.startTime, cdInfo.duration)

-- Safe: Display spell name (concatenation works with secrets) local name = C_Spell.GetSpellName(spellID) myFontString:SetText(name)

-- UNSAFE: Cannot branch on cooldown values local cdInfo = C_Spell.GetSpellCooldown(spellID) if cdInfo.duration > 0 then end -- ERROR if duration is secret

Common Patterns

Iterate All Spellbook Entries

local numLines = C_SpellBook.GetNumSpellBookSkillLines() for skillIndex = 1, numLines do local info = C_SpellBook.GetSpellBookSkillLineInfo(skillIndex) for slotIndex = info.itemIndexOffset + 1, info.itemIndexOffset + info.numSpellBookItems do local itemInfo = C_SpellBook.GetSpellBookItemInfo(slotIndex, Enum.SpellBookSpellBank.Player) if itemInfo and itemInfo.itemType == Enum.SpellBookItemType.Spell then print(itemInfo.name, itemInfo.spellID) end end end

Check If Spell Is Usable and in Range

local function CanCastOnTarget(spellID, unit) local isUsable, insufficientPower = C_Spell.IsSpellUsable(spellID) if not isUsable then return false, insufficientPower end

if C_Spell.SpellHasRange(spellID) then
    local inRange = C_Spell.IsSpellInRange(spellID, unit)
    if inRange == false then return false end
end

local cdInfo = C_Spell.GetSpellCooldown(spellID)
-- Note: cdInfo.duration may be a secret value in 12.0
-- Cannot branch on it — pass to Cooldown widget instead
return true

end

Display Action Button State

local function UpdateActionButton(button, actionID) if not C_ActionBar.HasAction(actionID) then button:Hide() return end

button.icon:SetTexture(C_ActionBar.GetActionTexture(actionID))

local isUsable, noMana = C_ActionBar.IsUsableAction(actionID)
if isUsable then
    button.icon:SetVertexColor(1, 1, 1)
elseif noMana then
    button.icon:SetVertexColor(0.5, 0.5, 1)
else
    button.icon:SetVertexColor(0.4, 0.4, 0.4)
end

-- Use activation overlay for proc detection
if C_SpellActivationOverlay.IsSpellOverlayed(C_ActionBar.GetSpell(actionID)) then
    button.overlay:Show()
else
    button.overlay:Hide()
end

end

Monitor Totem State

local function UpdateTotemFrame(slot) local haveTotem, name, startTime, duration, icon, modRate, spellID = GetTotemInfo(slot) if haveTotem then -- startTime/duration may be secret in 12.0 myTotemIcon:SetTexture(icon) myTotemCooldown:SetCooldown(startTime, duration) -- Widget accepts secrets myTotemName:SetText(name) end end

Query Shapeshift Forms

local function ShowAvailableForms() local numForms = GetNumShapeshiftForms() for i = 1, numForms do local icon, active, castable, spellID = GetShapeshiftFormInfo(i) print(C_Spell.GetSpellName(spellID), active and "(Active)" or "") end end

Related Events

Event Payload When

SPELL_DATA_LOAD_RESULT

spellID, success

Async spell data load complete

ACTIONBAR_SLOT_CHANGED

slot

Action placed/removed from slot

ACTIONBAR_PAGE_CHANGED

— Action bar page changed

ACTIONBAR_UPDATE_COOLDOWN

— Action cooldown updated

ACTIONBAR_UPDATE_USABLE

— Action usability changed

ACTIONBAR_UPDATE_STATE

— Action state changed

UPDATE_BONUS_ACTIONBAR

— Bonus bar changed (stance/form)

UPDATE_EXTRA_ACTIONBAR

— Extra action button changed

UPDATE_OVERRIDE_ACTIONBAR

— Override bar state changed

UPDATE_VEHICLE_ACTIONBAR

— Vehicle bar changed

UPDATE_POSSESS_BAR

— Possession bar changed

SPELL_ACTIVATION_OVERLAY_SHOW

spellID, ...

Proc overlay should show

SPELL_ACTIVATION_OVERLAY_HIDE

spellID

Proc overlay should hide

SPELL_UPDATE_COOLDOWN

— Spell cooldowns changed

SPELL_UPDATE_USABLE

— Spell usability changed

SPELL_UPDATE_CHARGES

— Spell charges changed

CURRENT_SPELL_CAST_CHANGED

— Current cast changed

SPELLS_CHANGED

— Spellbook contents changed

LEARNED_SPELL_IN_SKILL_LINE

spellID, skillLineIndex, isGuildPerkSpell

New spell learned

PLAYER_TOTEM_UPDATE

slot

Totem state changed

UPDATE_SHAPESHIFT_FORM

— Shapeshift form changed

UPDATE_SHAPESHIFT_FORMS

— Available forms changed

UPDATE_SHAPESHIFT_COOLDOWN

— Form cooldown changed

SPELL_CONFIRMATION_PROMPT

spellID, confirmType, text, duration, currencyID, currencyCost, difficultyID

Spell confirmation needed

SPELL_CONFIRMATION_TIMEOUT

spellID

Confirmation timed out

PET_BAR_UPDATE

— Pet bar updated

PET_BAR_UPDATE_COOLDOWN

— Pet action cooldown changed

PET_BAR_UPDATE_USABLE

— Pet action usability changed

ASSISTED_COMBAT_UPDATE

— Rotation helper suggestion changed

COOLDOWN_VIEWER_UPDATE

— Cooldown viewer data changed

SPELL_FLYOUT_UPDATE

flyoutID, spellID, isLearned

Flyout spell learned/changed

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