product-price-research

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last updated:2026-08-10 07:51:26

Product & price research

Look up and compare products, prices, sellers, and reviews across Amazon, eBay, Shopify storefronts, Shop.app, Target, Costco, Zalando, and Walmart — all as normalized JSON from the Crawlora API, with no HTML scraping.

When to use this skill

  • "What does X cost on Amazon / eBay / Target / Walmart?" or "compare prices for X across sellers/retailers."
  • "Find listings for X" / "search this Shopify store" / "what's in this collection?"
  • "Pull reviews / ratings for this product or seller."
  • "Track this product's price / variants / availability."
  • Competitive pricing, catalog, or marketplace-review research.

Setup (one-time)

  • Get a free Crawlora API key (2,000 credits/mo, no card) at https://crawlora.net.
  • export CRAWLORA_API_KEY=sk_your_key_here
  • All requests: x-api-key: $CRAWLORA_API_KEY against https://api.crawlora.net/api/v1. Missing/invalid key → 401.

How it works

Pick the marketplace, then the job:

  1. Search / discover — /amazon/search, /ebay/search, /shopify/products, /shop-app/search, /target/search, /costco/search, /walmart/search, and /zalando/search (this one requires market — a Zalando country storefront code like de, fr, com; list them via /zalando/markets) to find candidate products by keyword.
  2. Detail — fetch a specific product (/amazon/product, /ebay/item, /shopify/products/{handle}, /shop-app/products/{id}, /target/product (tcin), /costco/product/{id}, /walmart/product/{item_id}, /zalando/product (sku+market)) for price, variants, specs.
  3. Sellers — for eBay/Shop.app, resolve the seller/shop (/ebay/seller/..., /shop-app/shops/{handle}) to compare offers.
  4. Reviews — pull product/seller reviews where available (/shop-app/products/{id}/reviews, /ebay/seller/.../feedback, /target/reviews, /costco/product/{id}/reviews, /walmart/product/{item_id}/reviews).
  5. Compare the JSON fields (price, currency, rating, seller) and answer.

Full endpoint list, methods, and params: reference/endpoints.md.

Calling the API

# Search a marketplace (GET, key=value params):
scripts/crawlora.sh /amazon/search k="standing desk" | jq '.'
scripts/crawlora.sh /ebay/search q="mechanical keyboard" | jq '.'
scripts/crawlora.sh /shop-app/search query="running shoes" | jq '.'
scripts/crawlora.sh /target/search q="standing desk" | jq '.'
scripts/crawlora.sh /walmart/search q="standing desk" | jq '.'
scripts/crawlora.sh /zalando/search q="running shoes" market=de | jq '.'

# Product detail:
scripts/crawlora.sh /amazon/product asin=B0XXXXXXX | jq '{title,price}'

Raw curl fallback:

curl -fsS -H "x-api-key: $CRAWLORA_API_KEY" \
  "https://api.crawlora.net/api/v1/amazon/search?k=laptop" | jq '.'

Endpoint reference

See reference/endpoints.md for every Amazon, eBay, Shopify, Shop.app, Target, Costco, Zalando, and Walmart endpoint this skill uses (method, path, params, description).

Examples

  • Cross-marketplace price compare: search /amazon/search and /ebay/search for the same query, collect price from each, and present the spread.
  • Seller due diligence: /ebay/seller/{seller} + /ebay/seller/{seller}/feedback to summarize a seller's rating and recent feedback before buying.
  • Shopify catalog audit: /shopify/products (paginate) to list a store's catalog with prices, then flag items above/below a threshold.

Notes & limits

  • Credits / pay-on-success: billed only on 2xx; free tier 2,000 credits/mo. Key at https://crawlora.net.
  • Public data only — public product/listing pages; respect each marketplace's terms.
  • Security: key lives in CRAWLORA_API_KEY only — never hardcode, query-param, or commit it.
  • Results are paginated — pass page (and count where supported) to walk listings.
  • Zalando always needs market (no default storefront) — resolve valid codes via /zalando/markets if unsure.
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