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Blueprint MCP for Chrome

Chrome extension by 404 Software Labs · Productivity · Developer

  • Trader

A Chrome extension in Productivity · Developer with 1 000 users, a small but real audience.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
1 000
Rating
5.0 (6 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.9.22
Updated in the store
2026-08-11
Published
2025-11-07
Manifest
V3
Browser access
9 permissions, 3 site patterns

How it has moved

Users
unchanged since 31.08
1k · 2 readings
  1. 2026-08-311k
  2. 2026-09-141k
Rating
unchanged since 31.08
reviewsrating 5.00 · 2 readings
  1. 2026-08-31reviews6rating5.00
  2. 2026-09-14reviews6rating5.00
Users
unchanged since 31.08
1k · 2 readings
  1. 2026-08-311k
  2. 2026-09-141k
Rating
unchanged since 31.08
reviewsrating 5.00 · 2 readings
  1. 2026-08-31reviews6rating5.00
  2. 2026-09-14reviews6rating5.00

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

Every site you visit. This extension can read and change the content of any page you open.

  • Attach to pages the way developer tools do debugger
  • See, enable and disable your other extensions management
  • See the address and title of every tab you have open tabs
Show the remaining 6
  • Watch the network requests your browser makes webRequest
  • Run its own code on the pages it can access scripting
  • See when you navigate between pages webNavigation
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • 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

404 Software Labs publishes 9 listings we track, 2k users between them. Listed website: railsblueprint.com.

  1. Focus Music 404 Software Labs · Lifestyle · Fun · published 2025-12-29 312 users ★ 5.0
  2. Session Replay — Screenshot & Screen Recorder for Bug Reports 404 Software Labs · Productivity · Developer · published 2026-08-14 189 users ★ 5.0
  3. Grafana Dashboards 404 Software Labs · Productivity · Developer · published 2026-01-07 156 users ★ 5.0
Show 5 more from this publisher
  1. Backlink Checker 404 Software Labs · Productivity · Developer · published 2026-01-05 93 users
  2. Voice Notes 404 Software Labs · Productivity · Tools · published 2025-11-27 68 users ★ 4.8
  3. SEO Directories 404 Software Labs · Productivity · Developer · published 2026-01-05 66 users
  4. HTML to Slim Converter 404 Software Labs · Productivity · Developer · published 2025-09-18 12 users ★ 5.0
  5. Triumph - Habit tracker 404 Software Labs · Lifestyle · Well Being · published 2025-12-29 10 users

Like this one

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

  1. BrowserCtrl Describes nearly the same job, smaller audience 10 users
  2. Agent360 Browser MCP Describes nearly the same job, smaller audience 899 users
  3. Real Browser MCP Describes nearly the same job audience not published ★ 4.0
  4. Kapture MCP Browser Automation Describes nearly the same job, smaller audience 9k users ★ 5.0
  5. Browser Agent Extension Describes nearly the same job, smaller audience 132 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.