Sandbox environment: prices, stock and coupons are synthetic test data. What this means

Which retailers does Cartroute search?

Cartroute searches 12 US retailers on every query: Amazon, B&H Photo, Best Buy, Costco, Lowe's, Micro Center, Newegg, Sam's Club, Staples, Target, The Home Depot, Walmart. Two of them, Costco and Sam's Club, need a paid membership to buy; agents can exclude them with include_membership=false. Prices refresh every 10 to 30 minutes depending on the retailer.

What are each retailer's shipping, returns and membership rules?

RetailerMembershipFree shipping overReturnsRefreshOffersIn stockCouponsCoverage
Amazon No $35 30 days 10 min 40 35 3 First-party and Fulfilled-by-Amazon offers. Third-party marketplace resellers are excluded by default.
B&H Photo No $49 30 days 30 min 19 17 1 No sales tax outside NY and NJ. Closed Saturdays and Jewish holidays; orders queue rather than fail.
Best Buy No $35 15 days 15 min 43 38 3 New and Open-Box Excellent conditions. My Best Buy Plus pricing is not reflected.
Costco Required Always 90 days 30 min 17 14 1 Membership required to purchase. Bundle contents often differ from the equivalent SKU elsewhere.
Lowe's No $45 90 days 30 min 6 5 1 Online plus local store stock. MyLowes Rewards pricing is not reflected.
Micro Center No Pickup only 30 days 10 min 7 7 1 In-store pickup only for most SKUs. Stock is per-store and moves fast.
Newegg No $25 30 days 10 min 17 14 3 Newegg-shipped items only. Marketplace sellers are filtered out.
Sam's Club Required Always 90 days 30 min 15 14 1 Membership required. Plus members get free shipping; Club members do not.
Staples No $35 14 days 30 min 7 5 2 Business and office assortment. Frequent coupon cadence, short return window.
Target No $35 90 days 15 min 23 21 3 Target.com and same-day Shipt availability where the store carries the item.
The Home Depot No $45 90 days 30 min 8 7 2 Online plus local store stock for the ZIP code supplied in the request.
Walmart No $35 90 days 15 min 32 28 3 Walmart.com first-party inventory plus in-store pickup availability.

Machine-readable: GET /api/v1/retailers (free, no key needed).