Shopify Store Tracker: Product, Price & Stock Monitor

Shopify Store Tracker watches any Shopify store and tells you what changed since the last run, per variant: new product launches, price drops, price increases, discounts, back-in-stock, out-of-stock and removed products. It works as a Shopify product scraper on the first run (you get the full catalog right away) and as a Shopify price tracker and store monitor on every run after that. Put it on a schedule and get the changes in Slack, Discord or any webhook.

No login, no Shopify API key and no browser. It reads the store's public product catalog (/products.json), so it is fast and cheap.

What does Shopify Store Tracker do?

• Scrapes every product and variant of a Shopify store, or of one collection: title, vendor, product type, tags, SKU, price, compare-at price, discount %, availability, image and URL.
• Saves the catalog in your Apify account and, on the next run, compares the store with it.
• Labels every variant with an event: first_seen, new_product, price_drop, price_increase, back_in_stock, out_of_stock, removed or no_change.
• Sends one alert message per run to Slack, Discord or any webhook for new products, restocks and price drops above your threshold.

Who is it for?

• E-commerce brands and DTC teams doing competitor monitoring on rival Shopify stores.
• Dropshippers and resellers who want to know when a supplier adds products, changes prices or runs out of stock.
• Deal hunters and sneaker/beauty fans who want restock and sale alerts from their favorite stores.
• Analysts and agencies who need a daily catalog and price history of Shopify stores in a spreadsheet or database.

Use cases

• Competitor price monitoring: see every price change a competitor makes, with the old price, the new price and the % change.
• New product alerts: get a Slack or Discord message when a brand drops a new product or collection.
• Discount and sale tracking: compareAtPrice and discountPercent show what is on sale and by how much.
• Restock alerts: know when sold-out sizes or colors are back in stock.
• Catalog export: one row per variant, ready for Google Sheets, Excel, BI tools or your own database.

Why use this Shopify store tracker?

• You get data on the first run. The first run outputs the whole catalog (every variant as first_seen), so you can use it as a plain Shopify scraper too. Some monitors return nothing until the second run.
• One row per variant, not per product. Prices and stock are tracked per size or color, so a single sold-out size is not hidden inside a product row.
• Alerts built in. Paste a Slack or Discord webhook URL and you are done. No Zapier, Make or n8n needed (but they work too: the webhook body also has the full alerts array).
• Track a whole store or just one collection, for example only /collections/sale or only a brand's new arrivals.
• Discounts out of the box: discountPercent is computed from the store's compare-at price.
• Failures are free and isolated. A store that is not Shopify or blocks the request gets one error_not_shopify / error_blocked row and is skipped without charge; the other stores still run.
• Handles big stores. Pages are streamed, so stores with tens of thousands of variants fit in memory. Shopify's per-IP rate limits are handled by rotating Apify Proxy IPs (on by default), or by automatic waits and retries if you turn the proxy off.
• Cost control. Cap products per store, or set a maximum spend per run; the Actor stops cleanly when the budget is used.

How to use Shopify Store Tracker

1. Open the Actor and click Try for free.
2. In Shopify stores or collection URLs, add one or more stores: a domain (allbirds.com), a store URL, or a collection URL (https://store.com/collections/sale).
3. (Optional) Paste a Slack or Discord webhook URL and set the price drop threshold for alerts.
4. Click Start. The first run saves the current catalog; every variant is marked first_seen.
5. Create a Schedule (Actor page → Schedules), for example every 6 or 24 hours. Each run compares the store with the previous run and reports only real changes as events.
6. Turn on Output only changes if you only want changed rows in the dataset.

Example input

{
  "storeUrls": [
    "kyliecosmetics.com",
    "https://www.allbirds.com/collections/womens-socks"
  ],
  "trackerName": "competitors",
  "dropThresholdPercent": 10,
  "webhookUrl": "https://hooks.slack.com/services/XXX/YYY/ZZZ",
  "onlyChanges": true,
  "maxProductsPerStore": 1000,
  "proxyConfiguration": { "useApifyProxy": true }
}

The default input tracks one small collection (https://kyliecosmetics.com/collections/kylie-fragrance, about 50 variants), so a test run costs about $0.03.

Sample output

One row per variant. Example of a price drop:

{
  "store": "kyliecosmetics.com",
  "event": "price_drop",
  "alert": true,
  "productId": 9262920302834,
  "variantId": 50085820989682,
  "handle": "cosmic-kylie-jenner-2-0-50ml-pen-spray-duo-gift-set",
  "title": "Cosmic Kylie Jenner 2.0 50ml & Pen Spray Duo Gift Set",
  "variantTitle": null,
  "vendor": "kylie-fragrance",
  "productType": "Set",
  "tags": ["back in stock", "Brand_Principles:vegan"],
  "sku": "KF202",
  "price": 66,
  "previousPrice": 80,
  "changePercent": -17.5,
  "compareAtPrice": 80,
  "discountPercent": 17.5,
  "available": true,
  "createdAt": "2026-09-14T13:20:03-07:00",
  "publishedAt": "2026-10-08T09:46:52-07:00",
  "updatedAt": "2026-10-17T04:31:19-07:00",
  "url": "https://kyliecosmetics.com/products/cosmic-kylie-jenner-2-0-50ml-pen-spray-duo-gift-set?variant=50085820989682",
  "image": "https://cdn.shopify.com/s/files/...jpg",
  "checkedAt": "2026-10-17T11:30:18.513Z"
}

Field	Description
store	Store domain, or domain/collections/handle when you track a collection
event	What happened to this variant since the last run (see the table below)
alert	true if this row was included in the webhook alert
productId, variantId, handle	Shopify IDs and product handle
title, variantTitle	Product name and variant name (size, color…); null for single-variant products
vendor, productType, tags	Catalog metadata set by the store
sku	Variant SKU, if the store sets one
price, previousPrice, changePercent	Current price, price on the last run, and % change
compareAtPrice, discountPercent	"Was" price set by the store and the resulting discount %
available	Whether the variant can be bought right now
createdAt, publishedAt, updatedAt	Timestamps from Shopify
url, image	Direct variant link and image URL
checkedAt	When this run checked the store
error	Only on error_not_shopify / error_blocked rows: why the store was skipped

The dataset has two views: Changes (event, prices, stock, link) and All variants (every field).

Events

event	meaning	alert
first_seen	first run for this store and tracker name	no
new_product	product or variant that did not exist on the last run	yes
price_drop	price went down (changePercent is negative)	if the drop is at least your threshold
price_increase	price went up	no
back_in_stock	unavailable on the last run, available now	yes
out_of_stock	available on the last run, unavailable now	no
removed	variant was in the store on the last run but is gone now	no
no_change	nothing changed	no

Webhook alerts

If a run finds alerts, one JSON POST is sent to your webhook with text (shown by Slack), content (shown by Discord) and the full alerts array (for Zapier, Make, n8n or your own endpoint). New products are listed once per product, not once per variant.

Pricing

This Actor uses pay-per-event pricing. You pay $0.03 per 100 product variants scanned (event products-scanned-100), counted per store and rounded up, plus a tiny start fee of $0.00005 per run. You pay for scanning, not for output rows.

Worked example: a store with 693 variants = 7 events = $0.21 per run. Checking it once a day for 30 days costs about $6.30 per month. Tracking just one collection of 56 variants = 1 event = $0.03 per run.

• Output only changes does not change the price; it only keeps your dataset small.
• Stores that fail (blocked or not Shopify) are not charged.
• Use Max products per store to cap the cost of very large stores, or set a maximum cost per run in the run options; the Actor scans only what that budget covers and then stops.

Integrations and API

Run the Actor and read results from your own code with the Apify API client. Replace <YOUR_APIFY_TOKEN> with your token from Apify Console → Settings → API & Integrations.

Python

from apify_client import ApifyClient

client = ApifyClient("<YOUR_APIFY_TOKEN>")
run = client.actor("deanko/shopify-store-tracker").call(run_input={
    "storeUrls": ["kyliecosmetics.com"],
    "trackerName": "competitors",
    "onlyChanges": True,
})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item["event"], item.get("title"), item.get("price"), item.get("previousPrice"))

JavaScript / Node.js

import { ApifyClient } from 'apify-client';

const client = new ApifyClient({ token: '<YOUR_APIFY_TOKEN>' });
const run = await client.actor('deanko/shopify-store-tracker').call({
    storeUrls: ['kyliecosmetics.com'],
    trackerName: 'competitors',
    onlyChanges: true,
});
const { items } = await client.dataset(run.defaultDatasetId).listItems();
for (const item of items) console.log(item.event, item.title, item.price, item.previousPrice);

You can also:

• Export the dataset as JSON, CSV, Excel, XML or HTML from the run page or the API.
• Connect it to Google Sheets, Make, Zapier, n8n, Slack and more through Apify integrations.
• Run it on a Schedule and fetch the latest dataset with the "last run" API endpoint.

FAQ

How do I monitor a competitor's Shopify store for price changes? Add the store's domain, run once to save a baseline, then schedule the Actor (for example daily). Every later run labels each variant price_drop, price_increase, no_change and so on, with previousPrice and changePercent.

Can I use it just to scrape all products from a Shopify store? Yes. The first run outputs every variant of the store as first_seen with prices, SKUs, stock status, images and URLs.

How do I know if a site is a Shopify store? Just add it. If the store has no public Shopify catalog, you get a free error_not_shopify row and it is skipped.

Why is a store reported as error_blocked? Some stores sit behind Cloudflare or other bot protection, are password protected, or rate-limit requests. Switch the proxy to the Residential group and run again. Password-protected stores cannot be read.

Where is the previous-run data stored? How do I reset it? In a named key-value store called shopify-store-tracker in your Apify account, one record per tracker name and store. To start fresh, use a new Tracker name or delete the record.

Can I track several watchlists separately? Yes. Use a different Tracker name for each watchlist (for example per client); their histories never mix.

How often can I run it? As often as you like. Every 6 to 24 hours is typical for competitor monitoring; restock alerts work better with shorter intervals.

Does it get inventory quantities? No. It reports whether each variant is available (available: true/false), not how many units are left.

Limitations

• Only products published to the store's Online Store channel are visible. Draft, hidden, wholesale-only and password-protected products are not returned.
• Prices are in the store's default currency; the currency code is not included in the output.
• Inventory quantities are not available, only in-stock / out-of-stock per variant.
• If a store has more products than Max products per store, only the first N are tracked and removed detection is turned off for that store (products past the cap would otherwise look removed).
• If a store starts blocking halfway through a run, the variants already scanned are kept and saved, and removed detection is skipped for that run.
• Shopify rate-limits its public catalog per IP. With the proxy on (default) the Actor rotates IPs; with it off, it waits and retries, so very large stores (5,000+ products) can take several minutes.
• Works only on Shopify. WooCommerce, BigCommerce, Magento, Amazon and other platforms are not supported.

Legal

Only public product data is collected; no personal data. You are responsible for using the data in line with the store's terms and applicable laws.

Support and feedback

Found a bug, a store that does not work, or missing a field? Open an issue in the Issues tab of this Actor's page. Feature requests and feedback are welcome there too.