Chrome Web Store API

Search the Chrome Web Store and pull extension listings, reviews and category charts as JSON.

The API.SH Chrome Web Store API reads public store pages as structured JSON. Search extensions and themes by keyword with the store's own rating and featured filters, read an extension's listing by id or URL, page through its user reviews sorted by helpfulness, newest or rating, and pull the store-wide or per-category charts. Every endpoint takes a language so you can see the store as users in other markets do.

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4 endpoints
from $1 / 1,000 calls
1,000 free credits / month
failed calls free

Chrome Web Store search

GET https://api.api.sh/chrome-web-store/v1/search

{ "success": true }

1 credit · $1 per 1,000 calls

What you can build with the Chrome Web Store API

Competitor tracking

Search the keywords your extension competes on and watch which extensions rank, how they are rated and which are featured.

/search /extension

Review monitoring

Pull your extension's newest reviews on a schedule, filtered by language, and route low ratings to support.

/reviews

Category charts and market research

Read the store-wide chart or a category such as productivity/tools to find the leading extensions and themes in a niche.

/category

Store listing SEO

Compare your listing with the top results for a keyword, in each store language you care about.

/search /extension

Product research from reviews

Read the lowest-rated reviews of competing extensions to find features users ask for.

/reviews /search

Chrome Web Store data you get

Field names from real responses. Numbers come parsed, URLs absolute, dates in ISO 8601.

Chrome Web Store API endpoints and prices

Every Chrome Web Store endpoint costs 1 credit per call: credits are $1 per 1,000 on a monthly plan, $2 pay-as-you-go. Pricing

Search and discovery2

Chrome Web Store category chart /chrome-web-store/v1/category	$1 · $2 PAYG 1 credit
Chrome Web Store search /chrome-web-store/v1/search	$1 · $2 PAYG 1 credit

Comments and reviews1

Chrome Web Store reviews

/chrome-web-store/v1/reviews

$1 · $2 PAYG

1 credit

More data1

Chrome Web Store extension

/chrome-web-store/v1/extension

$1 · $2 PAYG

1 credit

Call the Chrome Web Store API

Chrome Web Store search: GET https://api.api.sh/chrome-web-store/v1/search

curl "https://api.api.sh/chrome-web-store/v1/search?q=ad+blocker" \
  -H "x-api-key: $APISH_KEY"

import os, requests

res = requests.get(
    "https://api.api.sh/chrome-web-store/v1/search",
    params={"q": "ad blocker"},
    headers={"x-api-key": os.environ["APISH_KEY"]},
    timeout=120,
)
res.raise_for_status()
data = res.json()

const url = new URL("https://api.api.sh/chrome-web-store/v1/search");
url.searchParams.set("q", "ad blocker");

const res = await fetch(url, { headers: { "x-api-key": process.env.APISH_KEY } });
if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);
const data = await res.json();

# Google Sheets (API.SH add-on)
=APISH("/chrome-web-store/v1/search", "q", "ad blocker")

# Zapier, Make, n8n (verified node): pick the API.SH app,
# choose "Chrome Web Store" and "Chrome Web Store search".

# AI agents (Claude, ChatGPT, Cursor): add the
# API.SH MCP server https://api.sh/mcp

Create a free accountConfirm your email and get 1,000 free credits every month. No card needed.
Create an API keyOne key works for all 482 platforms.
Send the requestJSON back in one call. Add output=csv or output=ndjson for files.

Why API.SH for Chrome Web Store data

Public data only: no Chrome Web Store login, cookies or account needed
One key and one response shape for Chrome Web Store and 481 other platforms
Built and maintained by API.SH, not third-party publishers
Pay per call; errors on our side cost nothing
Live status for every endpoint

API.SH vs the official Chrome Web Store API

Google's Chrome Web Store API (the Publish API) is for developers managing their own items: uploading, updating and publishing an extension with OAuth credentials. It does not return other extensions' listings, ratings or reviews. API.SH fills that gap with public store data as JSON, with no Google Cloud project or OAuth setup.

Instead of running a GitHub Chrome Web Store scraper and fixing it each time the store's pages change, API.SH gives you one key, a fixed price per call and paged JSON.

Chrome Web Store API questions

What Chrome Web Store data can I get?+

Keyword search for extensions and themes (/chrome-web-store/v1/search), one extension's listing (/chrome-web-store/v1/extension), its user reviews (/chrome-web-store/v1/reviews) and the store-wide or category charts (/chrome-web-store/v1/category).

How much does the Chrome Web Store API cost?+

Every Chrome Web Store endpoint costs 1 credit per call. On a monthly plan 1,000 credits cost $1 (Starter is $50/month for 50,000 credits). Pay-as-you-go is $2 per 1,000 credits, with top-ups from $15 that never expire.

Is there a free trial?+

Yes. Every account gets 1,000 free credits every month. That is 1,000 calls to /chrome-web-store/v1/category at 1 credit each.

Is there an official Chrome Web Store API?+

Yes, but it is a publishing API: it lets you upload, update and publish your own items. It has no endpoint for searching the store or reading other extensions' ratings and reviews, which is what API.SH returns.

Is there an API to get ratings and reviews of Chrome extensions?+

Yes. /chrome-web-store/v1/reviews returns an extension's reviews by id or store URL, sorted by helpful, recent, highest or lowest and filtered by language, with a cursor for the next page. Search also filters by minimum rating.

Do I need a Google account or developer account?+

No. API.SH reads public Chrome Web Store pages only. No endpoint uses a login, OAuth token or developer dashboard.

Can I use it from Python?+

Yes. It is a plain HTTPS API that returns JSON, so any HTTP client works, and there is an official Python SDK. Pass next_cursor back as cursor to page through search, reviews and charts.

How do I get started?+

1. Sign up at api.sh. 2. Copy your API key from the dashboard. 3. Call /chrome-web-store/v1/reviews with an extension id or store URL. Every parameter and request examples are in the docs at https://api.sh/docs. You can also use the JS or Python SDK, Google Sheets, Zapier, Make, n8n or the MCP server at https://api.sh/mcp.