Brass key

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Brass key trades around 510 gp now, -16.7% this week, 7-day range 270–657.

Lowlast instant sell

469

Highlast instant buy

550

Flippers place a buy offer near the low and sell near the high.

Flip margin: +70; per item, after 11 tax
Flip profit / 4h: 1,050; Buy 15 · spend 7,035 (limit)
Buy limit: 15; per 4 hours
Traded, 24h: 1,869; both sides
Reliability: 82%; of the last 24h, steady
High alch: 1; shop value 1

How these numbers work

Sell offer (last insta-buy)550

Buy offer (last insta-sell)− 469

GE tax, 2% capped at 5m− 11

Net margin per item+70

Breakeven sell price≥ 479

Potential profit, one 4h window

Buy limit15

10% of 4h volume31

10m bankroll ÷ buy21,321

Quantity (the lowest)× 15

Spend7,035

Potential profit1,050

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About Brass key on the GE

“Opens a door that leads into a dungeon.”

Brass key last traded at 550 gp (insta-buy) and 469 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 70 gp per item. 1,869 were traded in the last 24 hours. It is available to free-to-play players.

Looking for a flip? See today's best →

Prices assume you place offers and wait for them to fill. Insta-buying and insta-selling pays the spread twice.
Selling below the breakeven price loses money, even if it is above what you paid.
4h volume is 317 items (79/hr, pace over the last 2 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

-16.7% vs 7 days ago

Avg / day: 1,949
7d low: 270 gp
7d high: 657 gp

Hourly mid price, the average of the buy and sell prices. Volume counts both sides.

Price & volume

When it trades

Times in UTC (game time)

Bar height is trading volumecheapestpriciest

By hour of day

By weekday

Sinister key22,772 gp

Grubby key33,672 gp

Brass key price history

All-time high: 1,077 gp; 28 Mar 2015
All-time low: 152 gp; 23 Jan 2018
30 days: +12.0%
90 days: +4.7%
1 year: +1.6%

Monthly close in gp (last guide price of each month)

461Nov 25
472Dec 25
434Jan 26
465Feb 26
418Mar 26
414Apr 26
337May 26
474Jun 26
440Jul 26
405Aug 26
435Sept 26
447Oct 26

Daily GE guide prices from 28 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.

Tax: Selling one at 550 gp costs 11 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →

Brass key on the OSRS Wiki ↗

Brass key FAQ

How much is Brass key worth?

Brass key last sold for 469 gp (instant sell) and was last bought for 550 gp (instant buy) on the Grand Exchange.

What is the Brass key buy limit?

You can buy 15 Brass key every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Brass key worth high alching?

High alchemy turns Brass key into 1 gp. Buying one at 550 gp and casting with a nature rune at 138 gp costs 688 gp. That is a loss of 687 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Brass key tax-exempt?

No. Selling one at 550 gp costs 11 gp in tax (2% of the sale price, rounded down, capped at 5m gp).

What was Brass key's highest price?

The highest daily guide price on record for Brass key is 1,077 gp, on 28 Mar 2015. The lowest is 152 gp, on 23 Jan 2018.

Related items

About Brass key on the GE

Last 7 days

Brass key price history

Brass key FAQ