Is MarketCompass — K-Line & Market Data Enhancer safe to install?

What data it declares

The developer declares that it does not collect or use your data.

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

What Chrome asks you to allow

When you add it, Chrome asks you to allow it to:

• Read and change your data on a number of websites
• Manage your downloads
• Modify data you copy and paste

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

Specific sites only: 45 match patterns.

• https://getmarketcompass.site/* only getmarketcompass.site
• https://api.binance.com/* only api.binance.com
• http://*.binance.com/* binance.com and all its subdomains
• https://*.binance.com/* binance.com and all its subdomains
• https://data-api.binance.vision/* only data-api.binance.vision
• https://www.okx.com/* only www.okx.com
• http://*.okx.com/* okx.com and all its subdomains
• https://*.okx.com/* okx.com and all its subdomains
• https://api.bybit.com/* only api.bybit.com
• http://*.bybit.com/* bybit.com and all its subdomains
• https://*.bybit.com/* bybit.com and all its subdomains
• https://api.gateio.ws/* only api.gateio.ws
• and 33 more

Worth knowing

• Manage your downloads downloads

Routine for an extension

• Put data on your clipboard clipboardWrite
• Open a panel beside the page sidePanel
• Store data in your browser storage

Pages it runs its code on

It runs its own code on specific pages only: the first 50 site patterns we keep.

• http://*.binance.com/* binance.com and all its subdomains
• https://*.binance.com/* binance.com and all its subdomains
• http://*.okx.com/* okx.com and all its subdomains

We keep the first 50 patterns of a list; the manifest may declare more.

A content script is code the extension injects into pages matching these patterns. On those pages it can read and change what you see, whether or not a host permission is listed above.

How usual this is for its category

In Productivity · Tools, 20% of extensions ask for access to every site. This one: Access to specific sites only.

The typical extension there declares 3 browser permissions; this one declares 4 browser permissions.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

3 users (last published figure)

• Last updated in the store 33 days ago, on 2026-09-29.
• We have seen 1 new version in the last 90 days.

What the store shows

• Trader The publisher has declared itself a trader under EU rules.

The listing says it offers in-app purchases.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

The permissions this extension requests have not changed since we started watching it.

Versions we have seen

1. 2026-09-29Version 0.6.1

Who publishes it

zhumaocai1. This listing has been in the store since 2026-08-21 and was last updated on 2026-09-29.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

1. KairoTrend - TradingView AI Assistant Access to specific sites only · 2 permissions, 2 site patterns 1k users

How to check or remove it in Chrome

1. Type chrome://extensions in the address bar and find the extension in the list.
2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
3. To uninstall it, choose Remove on the same page.

Questions people ask

What can MarketCompass — K-Line & Market Data Enhancer access?

Specific sites only: 45 match patterns. It declares 4 browser permissions.

What data does MarketCompass — K-Line & Market Data Enhancer collect?

The developer declares that it does not collect or use your data. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

Has MarketCompass — K-Line & Market Data Enhancer asked for more permissions over time?

The permissions this extension requests have not changed since we started watching it.

Does MarketCompass — K-Line & Market Data Enhancer publish a privacy policy?

Yes, the store listing links to a privacy policy.