Product data for repricing & pricing tools

If you build a repricer or a dynamic-pricing engine, your algorithm is only as good as the price feed underneath it — and your customers churn the moment that feed is stale or wrong. ShopAPIS is the upstream data layer: it returns the live competitor price, buy_box_seller, buy_box_price, seller and availability for any SKU across 70+ marketplaces in 30+ countries, normalized and timestamped, so your repricing logic acts on what is true right now instead of yesterday’s snapshot.

A repricer is a decision engine that is worthless without a fresh, accurate competitor price and Buy Box signal — so the data feed, not the algorithm, is the part that wins or loses customers.

What a repricer needs from the feed

• The competing price — every active offer’s price, plus was_price to distinguish a promotion from a permanent cut.
• Buy Box state — buy_box_seller and buy_box_price, because on Amazon and similar marketplaces winning the Buy Box, not just being cheapest, is the goal.
• Availability — a competitor who is out of stock is not a competitor; availability lets the engine ignore them and hold margin.
• A timestamp — fetched_at so your engine knows the data’s age and can refuse to act on stale input.

All of this comes from price monitoring, the solution built to stream exactly this object on a cadence you set.

Why pricing tools embed an API instead of scraping

Repricer vendors that scrape directly inherit a maintenance treadmill: per-marketplace parsers, proxy rotation, and CAPTCHA solving against targets where block rates commonly exceed 50% and layouts change without notice — bots already account for 42% of web traffic, most of it malicious, per Akamai . Every hour your scraper is down is an hour your customers are repricing blind. ShopAPIS absorbs that operational risk and returns one normalized schema across all marketplaces, so your engineering effort goes into pricing logic — the thing you actually sell — instead of anti-bot defense. You consume one feed; your customers see consistently fresh prices.

Example: a Buy Box-aware repricing input

Your engine asks for the current state of a SKU and gets everything it needs to decide:

{
  "asin": "B09XYZ1234",
  "marketplace": "amazon",
  "country": "US",
  "currency": "USD",
  "buy_box_price": 64.99,
  "buy_box_seller": "FastShipCo",
  "your_offer": { "seller": "YourStore", "price": 67.99, "has_buy_box": false },
  "competing_offers": [
    { "seller": "FastShipCo", "price": 64.99, "availability": "in_stock" },
    { "seller": "BudgetBin", "price": 63.50, "availability": "out_of_stock" }
  ],
  "fetched_at": "2026-06-05T08:30:05Z"
}

Your engine sees it is 3 dollars over the Buy Box, that the cheaper seller is out of stock, and that beating 64.99 wins the box without chasing a phantom 63.50 — a precise reprice from one call.

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