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Bitcoin Fear and Greed Index

Chrome extension by Proof of Work Technology LLC · Productivity · Tools

A Chrome extension in Productivity · Tools with 27 users, barely installed.

Specific sites only: 1 match pattern.

What the developer says, and 4 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
27
Rating
5.0 (1 ratings)
Users, last 16 days
+1
Rating, last 30 days
Not watched long enough to say
Version
1.0.0
Updated in the store
2025-10-23
Published
2025-10-23
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
+1 since 31.08
23-27 · 8 readings
  1. 2026-08-3126
  2. 2026-09-0324
  3. 2026-09-0423
  4. 2026-09-0524
  5. 2026-09-0723
  6. 2026-09-0924
  7. 2026-09-1325
  8. 2026-09-1527
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-09reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-15reviews1rating5.00
Users
+1 since 31.08
23-27 · 8 readings
  1. 2026-08-3126
  2. 2026-09-0324
  3. 2026-09-0423
  4. 2026-09-0524
  5. 2026-09-0723
  6. 2026-09-0924
  7. 2026-09-1325
  8. 2026-09-1527
Rating
unchanged since 31.08
reviewsrating 5.00 · 8 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-09reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-15reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://api.alternative.me/
  • Schedule work to run later alarms
  • Add items to the right-click menu contextMenus
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Proof of Work Technology LLC publishes 4 listings we track, 166 users between them. Listed website: btc21.pages.dev.

  1. Bitcoin Price Ticker - Live BTC in USD Proof of Work Technology LLC · Productivity · Tools · published 2025-10-11 79 users ★ 5.0
  2. Verse of the Day Proof of Work Technology LLC · Make Chrome Yours · Functionality · published 2026-01-01 38 users
  3. Bitcoin Price Ticker in Brazilian Real Proof of Work Technology LLC · Productivity · Tools · published 2025-09-28 22 users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. Crypto Fear & Greed Index Describes nearly the same job, smaller audience 1k users ★ 4.0
  2. Fear & Greed Index - LIVE from CNN Describes nearly the same job, smaller audience 10 users ★ 5.0
  3. Fear & Greed Index Live Describes nearly the same job, smaller audience 176 users ★ 5.0
  4. bitcoin fear and greed index Describes nearly the same job, smaller audience 26 users
  5. AI Crypto Pulse Describes nearly the same job, smaller audience 4 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.