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Pay once · No Friday subscription

eBay Store Subscription Tier Break-Even Optimizer

See which Store tier costs least at your monthly listing volume.

eBay

Included in the $9.00 Shelf Kit

Agent/API — $0.50
Review-first
Every output stays a draft. No credentials
No seller-account login required. Private delivery
Inputs expire after 24 hours. Clear recourse
Digital-service refund policy.

What you receive

  • Per-tier cost breakdown: subscription, insertion overages, optional FVF
  • Tiers ranked by total monthly cost at your supplied volume
  • Signed monthly saving or extra cost versus your current tier
  • Exact fixed-price break-even listing count per tier, solved per segment
  • Transparent rounding, exclusion, and ranking notes for human review

Who it is for

eBay sellers and agencies deciding whether an upgrade or downgrade of a Store subscription saves money at their listing volume before a human confirms live eBay fee terms.

Delivery: usually a structured result, workbook, or ZIP depending on the tool.

How it stays safe

Friday performs arithmetic only on the subscription fees, zero-insertion-fee allowances, overage insertion fees, final-value-fee percentages, listing volumes, and sales estimate you supply. It reads no eBay account, Store subscription, rate card, or listing count, looks up no live fee, and verifies no field. The totals cover only the supplied components—promoted-listing fees, per-order fees, category exceptions, listing upgrades, and proration are not modeled—so a lowest-cost ranking is arithmetic at your supplied volume, not a recommendation that a subscription change is right for the business. Friday changes no subscription, opens no case, files nothing, does not publish listings, and does not modify a seller account.

Synthetic sample

See the deliverable structure before buying

{
  "tier_count": 4,
  "current_tier_label": "Starter",
  "current_tier_total_monthly_cost": 2317.95,
  "lowest_cost_tier_label": "Premium",
  "lowest_cost_total_monthly_cost": 2099.95,
  "best_monthly_saving_vs_current": 218.0,
  "tier_ranking_preview": [
    {
      "rank": 1,
      "tier_label": "Premium",
      "total_monthly_cost": 2099.95,
      "monthly_saving_vs_current": 218.0,
      "break_even_fixed_price_listings": 474,
      "cheaper_at_supplied_volume": true
    },
    {
      "rank": 2,
      "tier_label": "Basic",
      "total_monthly_cost": 2102.95,
      "monthly_saving_vs_current": 215.0,
      "break_even_fixed_price_listings": 317,
      "cheaper_at_supplied_volume": true
    },
    {
      "rank": 3,
      "tier_label": "Starter",
      "total_monthly_cost": 2317.95,
      "monthly_saving_vs_current": 0.0,
      "break_even_fixed_price_listings": null,
      "cheaper_at_supplied_volume": false
    }
  ],
  "publish_status": "draft_needs_review",
  "safety": "Arithmetic on seller-supplied fees, allowances, and volumes only. A lowest-cost ranking is not a subscription recommendation, no live eBay fee is looked up, and no subscription, listing, or account is changed."
}

This sample uses synthetic facts. Your output is generated only from the facts you submit.

Agent API and x402 details

POST /v1/ebay/store-subscription-tier-break-even

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.

Open the API documentation →

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