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Cross-Marketplace Comparison

Compare product pricing across Amazon marketplaces to find arbitrage opportunities

Agellic can match products across Amazon marketplaces using universal product identifiers (UPC/EAN codes). This lets you compare pricing between countries without manually searching for the foreign listing.

There are two ways to compare across marketplaces, depending on the size of your request.

Quick Code Lookup

For a single product or a small batch, the agent resolves the product code and returns the foreign listing inline. This is fast and works within the normal chat flow.

Example queries:

  • "What's the US equivalent of this Canadian ASIN: B09V3KXJPB?"
  • "Find this product on the UK marketplace"
  • "Look up UPC 673419375863 on Germany"
  • "Check if B08N5WRWNW exists on amazon.co.jp"

The agent looks up the product's UPC/EAN, searches for it on the target marketplace, and returns the match with pricing data.

Bulk Cross-Border Resolution

For larger sets (typically 50+ ASINs), the agent runs a background job that resolves every product to the target marketplace, fetches pricing on both sides, and presents a comparison.

Example queries:

  • "Resolve my watchlist from US to Canada"
  • "Compare these 150 ASINs between US and UK"
  • "Find the Canadian prices for all products in my Electronics list"

Bulk resolution runs as a background job. You will be notified when it completes, and you can keep chatting in the meantime.

Typical Workflow

  1. Build a shortlist. Start with a finder search or an existing product list on your source marketplace.
  2. Resolve to the target marketplace. Ask the agent to compare your shortlist against another marketplace. For small lists this happens inline. For larger lists it runs as a background job.
  3. Analyze the results. Ask the agent to highlight the best opportunities: "Which products have a price gap over 30%?" or "Rank by price differential."
  4. Save your finds. Save promising products to a new list for ongoing monitoring: "Save the products with a 20%+ price gap to a list called UK Arbitrage."

Start with 20-50 focused candidates rather than resolving hundreds. Validate the opportunity first, then expand.

Common Marketplace Pairs

Some pairs tend to have more pricing discrepancies than others:

  • US and Canada - Geographic proximity, different pricing dynamics
  • US and UK - Large markets with frequent price differences
  • US and Germany - Europe's largest Amazon marketplace
  • UK and Germany - Intra-European opportunities

Limitations

  • Product matching depends on UPC/EAN codes. Not every product has a universal code in Keepa's data. Amazon private-label items are often missing codes. The agent reports which products could not be matched.
  • Not every product is listed everywhere. A product on amazon.com may not exist on amazon.co.uk.
  • Prices are in local currency. The agent uses approximate exchange rates for comparison. Always verify current rates before making sourcing decisions.
  • Token cost scales with list size. Bulk resolution costs up to 12 tokens per ASIN. See the Keepa Tokens guide for details.
  • Keepa price data may be hours old. Confirm prices on Amazon before making purchasing decisions.