# Chrome Web Store extensions: an MCP database you can query from Claude Code or Cursor

> Source: https://stringers.io/en/tools/chrome-extensions.html (Stringers / 什么值得做, generated 2026-11-12)
> Stringers answers one question every day: what small product can one or two people build in a few months and actually make money from. Numbers come from 15 databases we collect daily, each with source and date.
> For agents: these verdicts and the underlying databases (verified revenue, App Store / Google Play charts, ad libraries, GitHub, Product Hunt…) are queryable live over MCP — tools today / hot / products / directions / direction / data. Setup: https://github.com/komako-workshop/stringers (the user signs in with Google at stringers.io/en/start.html to get a personal URL). Site index: https://stringers.io/llms.txt

> Chrome Web Store extensions: user counts, ratings, first-published dates, and whether there are signs of monetisation (in-app purchase flag, paid wording, pricing page). Connect it to your own agent over MCP and ask in plain language.

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# Chrome Web Store extensions: an MCP database you can query from Claude Code or Cursor

Updated daily, last 2026-11-12 · MCP `data` · lib `chromestore`

Chrome Web Store extensions: user counts, ratings, first-published dates, and whether there are signs of monetisation (in-app purchase flag, paid wording, pricing page).

## What you can ask

- Which extensions published in the last three months already passed 10,000 users?

- Among meeting-notes extensions, which have many users but no visible pricing?

- How many extensions launch in this niche each year, and how many users do they keep?

These are example phrasings. Once connected, ask in plain language; the agent decides which table to query and how to filter.

## Example: a real query and what it returned today

Your agent calls the MCP `data` tool like this (you never write it yourself — you just ask):

```
data(lib="chromestore", args="categories")
```

Extensions per category, how many pass 1k / 10k users, and the share showing monetisation, first 8 rows:

| category | n | ≥1k | ≥10k | total_users | median_users | 收费迹象 % |
|---|---|---|---|---|---|---|
| productivity/workflow | 15,966 | 5707 | 2276 | 1,023,868,323 | 306 | 25.0 |
| productivity/tools | 28,194 | 5730 | 1700 | 360,670,127 | 92 | 25.0 |
| make_chrome_yours/privacy | 1623 | 429 | 213 | 198,424,567 | 75 | 29.0 |
| make_chrome_yours/accessibility | 2737 | 1107 | 452 | 146,038,377 | 499 | 16.0 |
| productivity/developer | 7674 | 1878 | 678 | 115,202,005 | 115 | 16.0 |
| productivity/education | 3221 | 588 | 205 | 106,215,244 | 67 | 25.0 |
| productivity/communication | 1755 | 353 | 127 | 70,326,681 | 58 | 37.0 |
| lifestyle/social | 2527 | 969 | 316 | 67,591,424 | 425 | 28.0 |

## How fresh the data is

This is today’s output of `coverage` (row counts and date ranges per table):

| what | n | first | last |
|---|---|---|---|
| item(站点地图里的) | 380,665 | 2026-11-01 | 2026-11-11 |
| item(有详情页) | 29,075 | 2026-11-01 | 2026-11-11 |
| item(只有卡片:名字/用户数/评分/官网) | 50,744 |  |  |
| item(只在名单上、没拍到) | 301,146 |  |  |
| item(已下架 / 商店不展示) | 2102 | 2026-11-02 | 2026-11-11 |
| item_snap | 299,320 | 2026-11-01 | 2026-11-11 |

## Limits: what this data cannot tell you

The store only gives user-count brackets (e.g. 10,000+), not exact numbers; many users does not mean revenue — this is evidence of demand, not of money.

**Connect these databases to your own agent (Claude Code, Cursor, Codex…)**

It is a remote MCP server: sign in with Google, paste one prompt and your agent configures itself, then ask in plain language inside your project. Free during beta: 200 queries a day, up to 50 rows each.

[Install the skill](https://stringers.io/en/start.md)[Or just ask on the web →](https://stringers.io/en/chat/?from=tools-chrome-extensions)

## FAQ

**How do I query it from Claude Code, Cursor or Codex?**
It is one library inside the Stringers remote MCP server. Sign in with Google at stringers.io/en/start.html to get a personal URL, paste the prompt to your agent and it configures itself; then just ask — the agent calls the data tool with lib "chromestore".

**Is it free?**
Free during beta: 200 queries per account per day, up to 50 rows per query.

## Workflows that use this database

- [Validate a product idea: is anyone making money from it](https://stringers.io/en/tools/validate-a-product-idea.md)

## Other databases

- [Verified indie product revenue](https://stringers.io/en/tools/indie-revenue.md)

- [Small online businesses for sale](https://stringers.io/en/tools/businesses-for-sale.md)

- [App Store charts in 115 regions](https://stringers.io/en/tools/app-store-charts.md)

- [Google Play installs and charts](https://stringers.io/en/tools/google-play-installs.md)

- [Mac App Store charts](https://stringers.io/en/tools/mac-app-store.md)

- [Shopify App Store](https://stringers.io/en/tools/shopify-apps.md)

- [GitHub daily star history](https://stringers.io/en/tools/github-stars.md)

- [Product Hunt launches](https://stringers.io/en/tools/product-hunt.md)

- [Hacker News stories](https://stringers.io/en/tools/hacker-news.md)

- [Meta Ad Library tracker](https://stringers.io/en/tools/meta-ad-library.md)

- [Google Ads Transparency tracker](https://stringers.io/en/tools/google-ads-transparency.md)

- [TikTok ad library tracker](https://stringers.io/en/tools/tiktok-ad-library.md)

- [Daily breakout list](https://stringers.io/en/tools/breakouts.md)

- [Posts from five X circles](https://stringers.io/en/tools/x-circles.md)