Pay once · No Friday subscription
See the exact unit count where monthly plan fees cross.
Included in the $9.00 Shelf Kit
Amazon sellers comparing their own current Individual and Professional plan fees at known or planned monthly unit counts before a human reviews Amazon's current terms and chooses a subscription.
Delivery: usually a structured result, workbook, or ZIP depending on the tool.
Friday performs arithmetic only on the Individual per-item fee, Professional monthly fee, monthly sold-unit scenarios, and optional monthly feature values you provide. It reads no Amazon account, selling plan, order, listing, or current fee schedule and verifies no term. Feature values are subjective seller estimates shown separately and never alter the fee-only result. A lower calculated cost is not a plan recommendation or profit forecast. Friday changes no subscription or seller account, files and sends nothing, and does not publish listings. Confirm current Amazon plan terms before acting.
Synthetic sample
{
"fee_only_first_whole_unit_break_even": 41,
"feature_adjusted_first_whole_unit_break_even": 26,
"individual_lower_fee_month_count": 3,
"equal_fee_month_count": 0,
"professional_lower_fee_month_count": 3,
"total_individual_fee_only_cost": 293.04,
"total_professional_fee_only_cost": 239.94,
"total_fee_only_difference_individual_minus_professional": 53.1,
"total_individual_feature_adjusted_cost": 293.04,
"total_professional_feature_adjusted_cost": 149.94,
"total_feature_adjusted_difference_individual_minus_professional": 143.1,
"monthly_comparisons_preview": [
{
"month": "2026-03",
"sold_units": 40,
"individual_fee_only_cost": 39.6,
"professional_fee_only_cost": 39.99,
"fee_only_status": "individual_lower_fee"
},
{
"month": "2026-04",
"sold_units": 41,
"individual_fee_only_cost": 40.59,
"professional_fee_only_cost": 39.99,
"fee_only_status": "professional_lower_fee"
}
],
"publish_status": "draft_needs_review",
"safety": "Fee arithmetic on seller-supplied plan terms and unit scenarios only. Optional feature values stay separate; no plan is recommended or changed."
}
This sample uses synthetic facts. Your output is generated only from the facts you submit.
POST /v1/amazon/selling-plans/individual-professional-break-even
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.