Placebo API: Mock API Responses, Override & Block Requests
Chrome extension by okunevden97 · Productivity · Developer
- Established publisher
A Chrome extension in Productivity · Developer with 4 users, barely installed.
Every site you visit. This extension can read and change the content of any page you open.
What the developer says, and 5 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 4
- Users, last 15 days
- +4
- Version
- 1.2.0
- Updated in the store
- 2026-10-23
- Published
- 2026-10-19
- Manifest
- V3
- Browser access
- 4 permissions, 2 site patterns
How it has moved
- 2026-10-200appeared in the store
- 2026-10-212
- 2026-10-233released 1.2.0gained the good publisher record badge
- 2026-10-244
- 2026-10-255
- 2026-10-286
- 2026-10-305
- 2026-11-014
- 2026-11-034
- 2026-10-200appeared in the store
- 2026-10-212
- 2026-10-233released 1.2.0gained the good publisher record badge
- 2026-10-244
- 2026-10-255
- 2026-10-286
- 2026-10-305
- 2026-11-014
- 2026-11-034
A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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.
-
Block or redirect requests by rules it declares in advance
declarativeNetRequest -
Schedule work to run later
alarms -
Store data in your browser
storage
Show the remaining 1
-
Declares
userScripts
Version history
- Version 1.2.0 · Asked for more permissions (6, was 5) (changed: browser permissions)
- Version 1.1.0
What changed recently
- Package size changed
- Asked for more permissions (6, was 5) (changed: browser permissions)
- Supported languages changed (1 → 9)
Show the remaining 8
- Store description rewritten (130 → 126 characters)
- Gained the Established publisher badge
- Renamed from "Placebo API – Mock Responses & Block Requests" to "Placebo API: Mock API Responses, Override & Block Requests"
- Released version 1.2.0 (was 1.1.0)
- Package size changed
- Store description rewritten
- Released version 1.1.0 (was 1.0.1)
- Appeared in the store
The publisher
okunevden97 publishes 3 listings we track, 129 users between them. Listed website: placeboapi.com.
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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.
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[](https://extops.dev/extensions/doinplkccbpkeeadollonekhhbhafabk)<a href="https://extops.dev/extensions/doinplkccbpkeeadollonekhhbhafabk"><img src="https://extops.dev/extensions/doinplkccbpkeeadollonekhhbhafabk/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.