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	Ancient Engine	Arrow of the Starchaser
Artifex's Gyreheart	Ascendant Debris	Broken Teeth of Iron Wolf
Conqueror's Will	Destroyer's Final Road	Divine Amber
Dream Flamer	Dream Fridge	Dream Making Engine
Endotherm Chitin	Enigmatic Ectostella	Flower of Eternity
Gelid Chitin	Golden Crown of the Past Shadow	Guardian's Lament
Heaven Incinerator	Heavenly Melody	Horn of Snow
Immortal Lumintwig	Key of Wisdom	Lightning Crown of the Past Shadow
Lost Crystal	Moon Madness Fang	Myriad Fruit
Nail of the Ape	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	Dream Flow Valve	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
Obsidian of Dread	Scattered Stardust	Seed of Abundance
Shattered Blade	Silvermane Badge	Sparse Aether
Tatters of Thought	Thief's Instinct	Travel Encounters