API Monitor DevTools icon

API Monitor DevTools

by Alexander Block · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Inspect scheduled timeouts, animation frames, idle callbacks, eval invocations, media, workers, scheduler API

Users
149
+13 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#72K
#60K among extensions
Version
1.7.0
updated 16 Aug 2026

Users

monthly, 3 years
074149Mar 2024Sep 2025Oct 2026
Latest, 16 Oct 2026: 149 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Mar 2024Sep 2025Oct 2026
Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About API Monitor DevTools

This extension is aimed at web developers who manage medium to large-scale architecture web applications, wanting to see how the clock is ticking. Source code, specification and examples are at https://github.com/zendive/browser-api-monitor [MIT License] List of monitored native APIs: - eval (by default off, refer to README.md) - setTimeout - clearTimeout - setInterval - clearInterval - requestAnimationFrame - cancelAnimationFrame - requestIdleCallback - cancelIdleCallback - scheduler - postTask - yield - Worker - constructor - terminate - onmessage - onerror - postMessage - addEventListener - removeEventListener - SharedWorker - constructor - onerror - port.start - port.close - port.postMessage - port.addEventListener - port.removeEventListener

Growth

WindowUsersChangeRatingsRating
7 days+3+2.1%00.00
30 days+13+9.6%00.00
6 months+27+22.1%00.00
1 year+44+41.9%00.00

Version history

15 versions recorded
1.7.016 Aug 2026
1.6.010 Jun 2026
1.5.025 Feb 2026
1.4.111 Aug 2025
1.4.05 Aug 2025
1.0.915 Feb 2025
1.0.88 Feb 2025
1.0.724 Jan 2025

Details

Category
Developer Tools
First seen
22 Mar 2024
Size
119 KB
Languages
en
Pricing
Free
Support
github.com
Extension ID
bghmfoakiidiedpheejcjhciekobjcjp

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storagepower
Site access
*://*/*
Can read and change data on every website you visit.

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