Community price on backpack.tf: 32.0–46.0 keys, last changed 2023-12-09 (2.7y ago). The live quote above, 23.1 keys, is 28% lower and last moved 6h ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
47 observations
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
Purple Energy Boston Brain Bucket sell price, 2025-09-25 to 2026-09-05: 47 observations, from 48.6 keys to 23.1 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
48.6 keys
27.0 keys
30 SEP 2025 · 22:51 UTC
48.5 keys
27.0 keys
9 OCT 2025 · 10:22 UTC
46.4 keys
28.4 keys
25 OCT 2025 · 18:31 UTC
42.0 keys
25.8 keys
10 NOV 2025 · 02:26 UTC
48.8 keys
29.8 keys
15 DEC 2025 · 16:53 UTC
36.9 keys
10.7 keys
22 DEC 2025 · 09:16 UTC
35.8 keys
16.0 keys
30 DEC 2025 · 20:57 UTC
33.5 keys
19.8 keys
4 JAN 2026 · 22:58 UTC
32.0 keys
19.6 keys
22 JAN 2026 · 11:45 UTC
58.0 keys
10.6 keys
29 JAN 2026 · 01:46 UTC
43.0 keys
18.0 keys
1 FEB 2026 · 23:46 UTC
51.8 keys
10.0 keys
8 FEB 2026 · 02:24 UTC
43.6 keys
13.3 keys
15 FEB 2026 · 16:41 UTC
43.2 keys
16.7 keys
22 MAR 2026 · 22:08 UTC
35.7 keys
14.2 keys
29 MAR 2026 · 04:07 UTC
38.2 keys
14.5 keys
3 APR 2026 · 18:30 UTC
38.4 keys
18.4 keys
12 APR 2026 · 22:31 UTC
38.7 keys
18.3 keys
23 APR 2026 · 10:33 UTC
40.2 keys
14.5 keys
29 APR 2026 · 00:32 UTC
38.6 keys
18.1 keys
17 MAY 2026 · 20:35 UTC
41.4 keys
21.5 keys
24 MAY 2026 · 16:31 UTC
41.8 keys
21.4 keys
1 JUN 2026 · 00:31 UTC
42.9 keys
21.9 keys
8 JUN 2026 · 00:32 UTC
41.8 keys
22.3 keys
15 JUN 2026 · 08:33 UTC
40.1 keys
18.0 keys
22 JUN 2026 · 02:12 UTC
35.1 keys
14.7 keys
5 JUL 2026 · 23:12 UTC
22.6 keys
19.6 keys
12 JUL 2026 · 20:45 UTC
7.72 keys
6.72 keys
19 JUL 2026 · 22:44 UTC
21.8 keys
19.0 keys
29 JUL 2026 · 02:45 UTC
18.9 keys
16.4 keys
3 AUG 2026 · 19:11 UTC
24.7 keys
21.4 keys
19 AUG 2026 · 16:10 UTC
23.8 keys
20.7 keys
23 AUG 2026 · 02:09 UTC
23.4 keys
20.4 keys
26 AUG 2026 · 22:10 UTC
23.3 keys
20.3 keys
31 AUG 2026 · 04:09 UTC
8.51 keys
7.40 keys
1 SEP 2026 · 10:09 UTC
23.0 keys
20.0 keys
2 SEP 2026 · 02:08 UTC
22.7 keys
19.7 keys
3 SEP 2026 · 10:09 UTC
21.1 keys
18.3 keys
3 SEP 2026 · 22:09 UTC
23.6 keys
20.5 keys
5 SEP 2026 · 12:10 UTC
23.1 keys
20.1 keys
Price history in numbers
47 readings since 25 Sep 2025
Over the last 30 days the Purple Energy Boston Brain Bucket's sell price ranged from 8.51 keys to 23.8 keys and is up 168.6% after 10 moves. Over a year it ranged from 7.72 keys to 58.0 keys (down 52.4%). Today's 23.1 keys sits in the lower third of its range: the lowest we have recorded is 7.72 keys (12 Jul 2026) and the highest 58.0 keys (22 Jan 2026). The price has moved 46 times since we began recording it — about once every 8 days.