# Chrome Extension Change Monitor Scraper (`googleapi/chrome-extension-change-monitor-scraper`) Actor

Detect changes to public extension metadata, permissions, versions, and links.

- **URL**: https://apify.com/googleapi/chrome-extension-change-monitor-scraper.md
- **Developed by:** [Google API](https://apify.com/googleapi) (community)
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $3.99 / 1,000 results

This Actor is paid per event and usage. You are charged both the fixed price for specific events and for Apify platform usage.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

### What this Actor does

Chrome Extension Change Monitor Scraper tracks public Chrome Web Store listings across runs. It compares each extension with its saved observations and reports changes to listing details, publisher information, privacy disclosures, permissions, and versions.

An extension that is removed is reported only when a previous listing exists and the public store returns a not-found response.

### Input

Provide `extensionIds`, public URLs in `startUrls`, or search terms in `queries`. Use `query` or `searchQuery` for one search term. `maxItems` limits extension records, `maxPages` limits listing pages, and `maxRequests` caps public page requests. `maxVersions` limits version-history entries kept per extension.

```json
{"extensionIds":["cjpalhdlnbpafiamejdnhcphjbkeiagm"],"maxItems":10,"maxVersions":20}
```

Use `snapshotRetention` to limit saved comparison histories. Set `resetSnapshots` to `true` to begin a new comparison history. Monitoring always reads extension detail pages because it needs them to compare changes.

See the Input tab for supported URL forms, search options, and locale settings.

### Dataset output

Each row contains the current public extension listing and its change status. Common fields include extension ID and URLs, title, description, category, developer and contact details, rating and user counts, version and update information, permissions, privacy disclosures, support links, media, related extensions, and version history.

`changeType`, `changedFields`, and `changeDetails` describe the detected differences. Previous and current values are provided where available.

```json
{
  "extensionId": "cjpalhdlnbpafiamejdnhcphjbkeiagm",
  "title": "Example Extension",
  "version": "2.1.0",
  "changeType": "changed",
  "changedFields": ["version", "updatedAtText"],
  "changeDetails": [
    {"field":"version","previousValue":"2.0.0","currentValue":"2.1.0"}
  ]
}
```

Optional values are included only when the public listing provides them. You can download dataset records in JSON, CSV, Excel, or another format supported by Apify. The run output includes the comparison summary and saved snapshots.

### Coverage and responsible use

Results reflect public Chrome Web Store listings at run time and only the pages allowed by the selected limits. The Actor does not log in, access private APIs, or infer unavailable facts. Follow Chrome Web Store terms and applicable laws when using the data.

# Actor input Schema

## `extensionIds` (type: `array`):

Chrome extension IDs or official detail URLs to monitor.

## `startUrls` (type: `array`):

Official Chrome Web Store detail, search, or category URLs.

## `sourceUrls` (type: `array`):

Alias for startUrls.

## `urls` (type: `array`):

Compatibility alias for official Chrome Web Store URLs.

## `queries` (type: `array`):

Public Chrome Web Store search terms.

## `query` (type: `string`):

One public Chrome Web Store search term.

## `searchQuery` (type: `string`):

Compatibility alias for query.

## `category` (type: `string`):

One Chrome Web Store category path segment used when no explicit source URL is supplied.

## `mode` (type: `string`):

Compatibility value accepted from earlier actor inputs: details, search, or monitor.

## `maxItems` (type: `integer`):

Maximum normal extension records emitted.

## `maxPages` (type: `integer`):

Maximum public search or category pages followed per source.

## `maxRequests` (type: `integer`):

Maximum public detail-page and listing-page requests for this run.

## `maxVersions` (type: `integer`):

Maximum version-history entries retained per extension.

## `maxDetailItems` (type: `integer`):

Compatibility alias for the maximum number of monitored details.

## `maxDetailRequests` (type: `integer`):

Compatibility alias accepted from earlier actor inputs.

## `includeDetails` (type: `boolean`):

Compatibility flag; this monitor always reads detail pages because change detection requires them.

## `requestDelayMs` (type: `integer`):

Delay between public page requests.

## `maxConcurrency` (type: `integer`):

Bounded at one to keep public-source requests polite and deterministic.

## `maxRequestRetries` (type: `integer`):

Retries for transient public request failures.

## `maxRetries` (type: `integer`):

Compatibility alias for maxRequestRetries.

## `requestTimeoutSecs` (type: `integer`):

Maximum time to wait for one public page request.

## `timeoutSecs` (type: `integer`):

Compatibility alias for requestTimeoutSecs.

## `requestTimeoutMs` (type: `integer`):

Compatibility millisecond timeout; use seconds in the UI where possible.

## `maxResponseBytes` (type: `integer`):

Bound the HTML retained from each public response.

## `locale` (type: `string`):

Chrome Web Store locale such as en-US or en.

## `language` (type: `string`):

Compatibility alias for locale.

## `userAgent` (type: `string`):

Optional ordinary browser user agent for public requests.

## `proxyConfiguration` (type: `object`):

Compatibility field accepted for input portability; requests remain direct public HTTPS requests.

## `snapshotRetention` (type: `integer`):

Maximum extension snapshots retained in the Actor key-value store.

## `resetSnapshots` (type: `boolean`):

Clear prior local comparison state before this run.

## `page` (type: `integer`):

One-based starting page. Reached by following observed next-page links from the source URL.

## Actor input object example

```json
{
  "category": "extensions",
  "maxItems": 25,
  "maxPages": 3,
  "maxRequests": 75,
  "maxVersions": 20,
  "maxDetailItems": 25,
  "includeDetails": true,
  "requestDelayMs": 0,
  "maxConcurrency": 1,
  "requestTimeoutSecs": 25,
  "maxResponseBytes": 3000000,
  "locale": "en-US",
  "snapshotRetention": 100,
  "resetSnapshots": false,
  "page": 1
}
```

# Actor output Schema

## `dataset` (type: `string`):

No description

## `runSummary` (type: `string`):

No description

## `snapshots` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("googleapi/chrome-extension-change-monitor-scraper").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("googleapi/chrome-extension-change-monitor-scraper").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call googleapi/chrome-extension-change-monitor-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,googleapi/chrome-extension-change-monitor-scraper"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/SUL8X52Q4dLz0Nblm/builds/f2voUdcTi0IXfieru/openapi.json