Pay once · No Friday subscription
See whether closing a supplied Buy Box gap still clears your margin floor.
Included in the $9.00 Shelf Kit
Walmart Marketplace sellers, agencies, and pricing analysts deciding which observed Buy Box losses are economically reviewable before a human verifies live pricing and changes anything.
Delivery: usually a structured result, workbook, or ZIP depending on the tool.
Friday performs arithmetic only on the seller and Buy Box item/shipping prices, status, recent units, fee rate, costs, and contribution floor you supply. It reads no Walmart account, API, report, price, offer, order, or customer record and verifies no field. A match-affordable result means only that the observed delivered-price gap fits above your supplied floor under this cost model; it is not a repricing recommendation or a promise of a Buy Box win. Contribution is not net income. Friday does not publish listings and never changes an item price, shipping charge, repricer, inventory, offer, or listing. A human must verify the live offer, every cost, current Walmart terms, and omitted factors before acting.
Synthetic sample
{
"total_records": 2,
"lost_count": 2,
"match_affordable_count": 1,
"floor_blocked_count": 1,
"total_observed_gap": 5.0,
"total_maximum_safe_concession": 4.77,
"plan_preview": [
{
"priority_rank": 1,
"sku": "NW-BOTTLE-24",
"seller_total_delivered_price": 32.0,
"buy_box_total_delivered_price": 30.0,
"delivered_price_gap": 2.0,
"current_contribution_per_unit": 12.3,
"minimum_safe_total_delivered_price": 27.23,
"maximum_safe_total_concession": 4.77,
"contribution_after_matching_buy_box": 10.5,
"headroom_after_match": 2.5,
"affordable_gap_percent": 100.0,
"economic_status": "match_affordable"
},
{
"priority_rank": 2,
"sku": "NW-MUG-12",
"seller_total_delivered_price": 20.0,
"buy_box_total_delivered_price": 17.0,
"delivered_price_gap": 3.0,
"current_contribution_per_unit": 3.5,
"minimum_safe_total_delivered_price": 20.59,
"maximum_safe_total_concession": 0.0,
"contribution_after_matching_buy_box": 0.95,
"headroom_after_match": -3.05,
"affordable_gap_percent": 0.0,
"economic_status": "floor_blocks_concession"
}
],
"publish_status": "draft_needs_review",
"safety": "Review-only arithmetic from seller-supplied price and cost fields\u2014not a live Walmart account read, repricing instruction, or Buy Box promise."
}
This sample uses synthetic facts. Your output is generated only from the facts you submit.
POST /v1/walmart/buy-box-margin-gap-plan
Exact x402 price: $0.50. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.