Pay once · No Friday subscription
See the zone-weighted subsidy hidden in a shipping template.
Included in the $9.00 Shelf Kit
Sellers, agencies, and agents pressure-testing a rate table before a human edits a marketplace shipping template.
Delivery: usually a structured result, workbook, or ZIP depending on the tool.
Friday performs arithmetic only on the weights, rates, surcharges, packaging cost, buyer charges, fee rate, order mix, and expected order count you supply. It fetches no carrier quote, fee schedule, address, order, customer, template, listing, or account; predicts no demand or delivery date; and does not create, edit, activate, price, or publish a shipping template. It does not publish listings. A human must verify current carrier and marketplace terms before changing a template.
Synthetic sample
{
"weighted_average_cost_per_order_usd": 9.95,
"estimated_monthly_shipping_cost_usd": 995.0,
"estimated_monthly_buyer_charges_usd": 980.0,
"estimated_monthly_marketplace_fees_usd": 117.6,
"estimated_monthly_net_contribution_usd": -132.6,
"estimated_monthly_seller_subsidy_usd": 132.6,
"verdict": "seller_subsidy_estimated",
"zone_preview": [
{
"zone_name": "Near",
"total_cost_per_order_usd": 8.25,
"buyer_shipping_charge_usd": 9.0,
"seller_subsidy_per_order_usd": 0.33,
"break_even_buyer_charge_usd": 9.38
},
{
"zone_name": "Far",
"total_cost_per_order_usd": 12.5,
"buyer_shipping_charge_usd": 11.0,
"seller_subsidy_per_order_usd": 2.82,
"break_even_buyer_charge_usd": 14.2
}
],
"publish_status": "draft_needs_review",
"safety": "Scenario arithmetic over seller-supplied rates only; no live rate, order, address, customer, or template is read, and nothing is changed or published."
}
This sample uses synthetic facts. Your output is generated only from the facts you submit.
POST /v1/shipping/template-cost-estimate
Exact x402 price: $0.25. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.