Scrape any Shopify store's variants (price, SKU, stock) without an API key

#webscraping #ecommerce #javascript #api

The public feed most people forget

Every Shopify store exposes its catalogue at /{store}/products.json — the same feed the storefront's own JavaScript uses. No API key, no app install, no OAuth. You just need to treat it like the fragile public endpoint it is.

One row per variant, not per product

Price, SKU and stock live on the variant, so a shirt in five sizes is five rows. The Shopify Variant Scraper returns:

{
  "store": "allbirds.com",
  "productTitle": "Wool Runner Go",
  "variantTitle": "US 10 / Natural Black",
  "sku": "WRG-NB-10",
  "price": 140,
  "compareAtPrice": 160,
  "discountPercent": 12.5,
  "isOnSale": true,
  "available": true,
  "option1": "US 10",
  "option2": "Natural Black",
  "vendor": "Allbirds",
  "productType": "Shoes",
  "tags": ["sale"],
  "images": ["https://cdn.shopify.com/..."],
  "variantUid": "allbirds.com:123456:789012",
  "productHash": "b41c9d2e77f0a183"
}

productHash is a change-detection key: diff two scheduled runs to see exactly which variants changed price or stock.

Filters that cut the bill

The input lets you narrow before rows are written, so filters reduce both the dataset and the number of billed variants:

{
  "stores": ["allbirds.com", "kith.com"],
  "collections": ["sale"],
  "onSaleOnly": true,
  "maxProductsPerStore": 100,
  "maxVariantsTotal": 2000
}

Handle the failure modes

The public feed is not always friendly, and the Actor reports each case as an error row instead of failing the run:

404 → the store is not Shopify (or the feed is disabled) → UNSUPPORTED_SOURCE.
429 → the store rate-limited you → RATE_LIMITED.
Empty → feed exists but the catalogue is private → EMPTY_RESULT.

That means a mixed list of 500 domains gives you data for the real Shopify stores and a clear reason for every miss.

Try it

Shopify Variant Scraper: Price, SKU & Stock — no API key, one row per variant.

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