# Google API: Get Chrome extension details > Looks up a Chrome Web Store extension by name or store link and returns its public listing: developer, users, rating, version, update date, size, category, description, declared privacy practices, website and store link. Permissions are null when the listing does not show them. Unofficial. Not affiliated with or endorsed by Google. - Page: https://fous.com/methods/chromewebstore.google.com/get-extension - Method: `chromewebstore.google.com/get_extension`, version 1 - Website: chromewebstore.google.com - Returns: extension name, developer, users, star rating, rating count, version, last updated date, size, category, short description, permissions, privacy practices, website, store link, extension ID - Effect: read (it gets data and changes nothing) - Sign-in: none needed - Cost: 1 credit per completed run (1¢ with pay as you go); failed runs are free - Verified: Nov 2, 2026 ## Inputs | Field | Type | Required | In the run below | Description | |---|---|---|---|---| | `extension` | string | yes | `"Grammarly"` | Extension name or Chrome Web Store link, for example Grammarly or https://chromewebstore.google.com/detail/grammarly-ai-writing-assi/kbfnbcaeplbcioakkpcpgfkobkghlhen. | ## Output From a run on Oct 31, 2026, shortened. Its input: ```json { "extension": "Grammarly" } ``` Its output: ```json { "size": "16.87MiB", "version": "14.1333.0", "category": "Communication", "developer": "Grammarly", "store_link": "https://chromewebstore.google.com/detail/grammarly-ai-writing-assi/kbfnbcaeplbcioakkpcpgfkobkghlhen", "permissions": null, "star_rating": 4.5, "extension_id": "kbfnbcaeplbcioakkpcpgfkobkghlhen", "rating_count": 43131, "website_link": "http://grammarly.com/", "extension_name": "Grammarly: AI Writing Assistant and Grammar Checker App", "number_of_users": 40000000, "last_updated_date": "2026-09-28", "privacy_practices": [ "The developer declares that this extension handles personally identifiable information, personal communications, location, user activity, website content.", "The developer declares that your data is not being sold to third parties, outside of the approved use cases.", "The developer declares that your data is not being used or transferred for purposes that are unrelated to the item's core functionality." ], "short_description": "Grammarly for Chrome helps you write with confidence. Get AI support for grammar, clarity, and tone, from first draft to final edit." } ``` ## Run it From code, with a Fous API key in `FOUS_API_KEY`; the answer's `data` holds the output: ```bash curl https://api.fous.com/v1/runs \ -H "Authorization: Bearer $FOUS_API_KEY" \ -H "Content-Type: application/json" \ -d '{"method":"chromewebstore.google.com/get_extension","input":{"extension":"Grammarly"}}' ``` From an AI agent connected to the Fous MCP server: its `run` with the same method and input. To connect one, give it `set up https://fous.com/SKILL.md`. ## Ask your agent - How many users does the uBlock Origin extension have and when was it last updated? - Pull up the Chrome Web Store listing for Honey — I need the developer name, rating, and what data it says it collects. - What version is the LastPass browser extension on right now, and how big is it? - Check this extension for me: https://chromewebstore.google.com/detail/dark-reader/eimadpbcbfnmbkopoojfekhnkhfdbg — who makes it and what's its star rating and number of reviews? - Before I install the Google Translate extension for Chrome, show me its category, description, privacy practices, and official website. ## Input schema ```json { "type": "object", "required": [ "extension" ], "properties": { "extension": { "type": "string", "description": "Extension name or Chrome Web Store link, for example Grammarly or https://chromewebstore.google.com/detail/grammarly-ai-writing-assi/kbfnbcaeplbcioakkpcpgfkobkghlhen." } } } ``` ## Output schema ```json { "type": "object", "required": [ "extension_name", "developer", "number_of_users", "star_rating", "rating_count", "version", "last_updated_date", "size", "category", "short_description", "permissions", "privacy_practices", "website_link", "store_link", "extension_id" ], "properties": { "size": { "type": [ "string", "null" ], "description": "Download size as shown on the listing." }, "version": { "type": [ "string", "null" ], "description": "Published version." }, "category": { "type": [ "string", "null" ], "description": "Store category." }, "developer": { "type": [ "string", "null" ], "description": "Publisher name shown on the listing." }, "store_link": { "type": "string", "description": "Link to this Chrome Web Store listing." }, "permissions": { "type": [ "array", "null" ], "items": { "type": "string" }, "description": "Permissions requested when displayed on the listing; null when absent." }, "star_rating": { "type": [ "number", "null" ], "description": "Displayed star rating out of five." }, "extension_id": { "type": "string", "description": "32-letter Chrome extension identifier.", "x-fous-developer": true }, "rating_count": { "type": [ "integer", "null" ], "description": "Number of user ratings." }, "website_link": { "type": [ "string", "null" ], "description": "Publisher website, if listed." }, "extension_name": { "type": "string", "description": "Name of the extension." }, "number_of_users": { "type": [ "integer", "null" ], "description": "Number of users shown on the listing." }, "last_updated_date": { "type": [ "string", "null" ], "format": "date", "description": "Last updated date in YYYY-MM-DD format." }, "privacy_practices": { "type": "array", "items": { "type": "string" }, "description": "Plain sentences describing declared data handling practices." }, "short_description": { "type": [ "string", "null" ], "description": "Short listing description." } }, "additionalProperties": false } ``` ## See more - [Google API: Search Chrome extensions](https://fous.com/methods/chromewebstore.google.com/search-extensions.md): Finds Chrome Web Store extensions by keywords in store order, with each listing's developer, users, rating, rating count, short description and store link. Some listings omit developer, users or ratings. - [Google API: Get Android app listing](https://fous.com/methods/play.google.com/get-app.md): Gets a public Google Play app listing by app name or Play Store link, with developer, rating, downloads, price, what's new, descriptions and data safety highlights. - [Google API: Get app reviews](https://fous.com/methods/play.google.com/get-app-reviews.md): Gets public user reviews for an Android app on Google Play. The app can be given by name, Play Store link, or app ID. - [Google API: Search Google Play apps](https://fous.com/methods/play.google.com/search-apps.md): Finds Android apps on Google Play by keywords, in Play search order, with each listing's developer, star rating, price and currency for the chosen country, download range and link. Results are limited to apps shown on the public search page. - [Google API: Get place](https://fous.com/methods/google.com/get-place.md): Looks up a public Google Maps place by name and location and returns its profile: address, rating, hours, phone, website and photos. - [Google API: Get place reviews](https://fous.com/methods/google.com/get-place-reviews.md): Finds a place on Google Maps by name and location and returns its public reviews in the chosen order. - [Google API: Get company ads](https://fous.com/methods/adstransparency.google.com/get-company-ads.md): Finds a verified advertiser in the Google Ads Transparency Center by company name or website domain and returns its Google ads with dates, regions, previews and ad pages. Counts may be approximate; regions and media previews are read for the first 40 ads. - [Google API: Search Google Books](https://fous.com/methods/books.google.com/search-books.md): Searches Google Books by words, author, subject or ISBN, with language, free-ebook and newest-first options. Ratings counts are not shown by the public book feed; newest sorts the available matches by publication date. - [All Google methods](https://fous.com/methods/google.com.md)