Key of Knowledge Locations and How to Get It

Here are Key of Knowledge locations and how to get it in Honkai: Star Rail. See how to use Key of Knowledge and its effects in this guide!

Key of Knowledge Locations and How to Get It

Locations - Where to Get Key of Knowledge

Calyx (Crimson): Bud of Erudition - Rivet Town

Key of Knowledge can be obtained by successfully defeating enemy waves in the Calyx (Crimson): Bud of Erudition - Rivet Town.

Crimson and Golden Calyxes Guide

Craft Through the Synthesizer

Key of Inspiration x3	→	Key of Knowledge x1

How to Unlock the Omni-Synthesizer

How to Use Key of Knowledge

Character Trace Ascension

Key of Knowledge is used to level up Traces of characters in the path of The Erudition.

Characters that Use Key of Knowledge
Argenti	Herta	Himeko
Jing Yuan	Qingque	Serval

Light Cone Ascension

Key of Knowledge is used to ascend certain Light Cones.

Light Cones that Use Key of Knowledge
Before Dawn	Night on the Milky Way	An Instant Before A Gaze
Today Is Another Peaceful Day	Warmth Shortens Cold Nights	The Seriousness of Breakfast
Make the World Clamor	The Birth of the Self	Geniuses' Repose
The Day The Cosmos Fell	Sagacity	Passkey
Data Bank

Synthesizer

You can use Key of Knowledge in the Synthesizer to convert it into another Trace Material Light Cone Ascension Material.

Key of Knowledge Effects

Key of Knowledge
Rarity	★★★
Effect	A mythical key possessed by the Meditative Scholars, used to level up Traces slightly for Erudition characters.

Honkai: Star Rail Related Guides

All Item Types

All Items List

All Upgrade Materials

Upgrade Materials
Tracks of Destiny	A Glass of the Besotted Era	Ancient Engine
Arrow of the Starchaser	Artifex's Gyreheart	Ascendant Debris
Auspice Sliver	Broken Teeth of Iron Wolf	Chordal Mirage
Conqueror's Will	Countertemporal Shot	Destroyer's Final Road
Divine Amber	Dream Flamer	Dream Fridge
Dream Making Engine	Endotherm Chitin	Enigmatic Ectostella
Exquisite Colored Draft	Flower of Eternity	Gelid Chitin
Golden Crown of the Past Shadow	Guardian's Lament	Heaven Incinerator
Heavenly Melody	Horn of Snow	Immortal Lumintwig
IPC Work Permit	Key of Wisdom	Lightning Crown of the Past Shadow
Lost Crystal	Lost Echo of the Shared Wish	Moon Rage Fang
Myriad Fruit	Nail of the Ape	Nail of the Beast Coffin
Netherworld Token	Obsidian of Obsession	Past Evils of the Borehole Planet Disaster
Raging Heart	Refined Aether	Regret of Infinite Ochema
Safeguard of Amber	Searing Steel Blade	Shape Shifter's Lightning Staff
Shards of Desires	Silvermane Medal	Squirming Core
Stellaris Symphony	Storm Eye	Suppressing Edict
Tears of Dreams	Traveler's Guide	Void Cast Iron
Worldbreaker Blade	Adventure Log	Ancestral Hymn
Ancient Spindle	Arrow of the Demon Slayer	Artifex's Cogwheel
Celestial Section	Condensed Aether	Crystal Meteorites
Destined Expiration	Dream Flow Valve	Dynamic Outlining
Fragments of Impression	Glimmering Core	Immortal Aeroblossom
Key of Knowledge	Lifeless Blade	Lost Gold Fragment
Lupitoxin Sawteeth	Nourishing Honey	Oath of Steel
Obsidian of Desolation	Silvermane Insignia	Sprout of Life
Starfire Essence	Usurper's Scheme	Alien Tree Seed
Ancient Part	Arrow of the Beast Hunter	Artifex's Module
Borisin Teeth	Dream Collection Component	Endurance of Bronze
Extinguished Core	Fiery Spirit	Firmament Note
Harmonic Tune	Immortal Scionette	Key of Inspiration
Lost Lightdust	Meteoric Bullet	Obsidian of Dread
Rough Sketch	Scattered Stardust	Seed of Abundance
Shattered Blade	Silvermane Badge	Sparse Aether
Tatters of Thought	Thief's Instinct	Travel Encounters