Reseller True-Profit & Fee Calculator

io.github.tylerscomic-labv1.0.0更新於 Oct 2, 2026

True net profit and breakeven price for eBay, Etsy, Poshmark, Mercari, Depop, Whatnot, TikTok Shop.

已驗證Streamable HTTP可網頁執行FinanceBusiness & Commerce

概覽

AI 產生的概覽

為在七個美國平台上轉售商品的賣家計算真實淨利、平台費用明細與損益兩平價格。

功能
逐項列出 eBay、Etsy、Poshmark、Mercari、Depop、Whatnot 與 TikTok Shop 的平台費用，再扣除運費、商品成本與耗材，得出淨利、利潤率與投資報酬率。工具包括 calculate_net_profit、compare_platforms（同一商品在七個平台上排名比較）、依目標利潤計算最低售價的 find_breakeven_price，以及顯示所用費率表與其生效日期的 get_fee_schedule。可傳入自訂費率百分比或固定費用，以因應帳號專屬或已變動的費用。
適用情境
適合在為轉售庫存定價或選品時，想了解扣除平台費用後一筆銷售實際能賺多少；也適合比較同一商品在哪個平台利潤最高，或設定仍能達到目標利潤的最低標價。
執行需求
遠端 streamable HTTP 端點；README 說明其託管於 MCPize，免費額度為每天 10 次呼叫，需要 MCPize 的 API 金鑰。也可用 Node.js 在本機執行（npm install、node server.js，監聽 8080 埠，MCP 路徑為 /mcp）。
安裝前請注意
README 說明不含銷售稅與所得稅，且費率經常變動，因此結果帶有生效日期，應至官方費率頁面核實。託管端點需要 MCPize 的 API 金鑰，免費額度每天僅 10 次呼叫。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 Reseller True-Profit & Fee Calculator，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "reseller-fees-mcp": {
      "type": "http",
      "url": "https://reseller-fees-mcp.mcpize.run/mcp"
    }
  }
}

README

Reseller True-Profit & Fee Calculator

True net profit for resellers across eBay, Etsy, Poshmark, Mercari, Depop, Whatnot and TikTok Shop. Every fee itemised from current 2026 schedules, plus platform comparison and the minimum price that hits your target profit.

What did that sale actually make you?

Sale price is not profit. Each marketplace stacks different fees, and they changed a lot in 2026. This itemises every one, then subtracts shipping, what you paid for the item and supplies.

Platforms and fees covered (US, as of 2026-10-01)

  • eBay: final value fee by category tier (standard, sports cards, handbags, watches, athletic shoes), per-order fee, Promoted Listings.
  • Etsy: listing fee, 6.5% transaction, payment processing, Offsite Ads (15% or 12%).
  • Poshmark: flat fee under $15, 20% above.
  • Mercari: 10% selling fee.
  • Depop: no US selling fee, payment processing, boosted listings.
  • Whatnot: category commission plus payment processing.
  • TikTok Shop: referral fee (8% for most categories since Aug 2026), per-order fee, affiliate commission.

Tools

  • calculate_net_profit: every fee line, net profit, margin, ROI, what you keep.
  • compare_platforms: the same item on all seven, ranked by net profit.
  • find_breakeven_price: the lowest list price that reaches your target profit.
  • get_fee_schedule: the schedule used, with the date and official page to verify.

Fees change often. Every result carries its as-of date, and you can pass custom_fee_pct or custom_flat_fee to adjust for anything that has changed or applies to your account. Sales tax and income tax are not included.

Use it

Hosted on MCPize with a free tier (10 calls a day). Remote MCP endpoint (streamable HTTP, API key from MCPize):

https://reseller-fees-mcp.mcpize.run/mcp

Or run it yourself:

bash
npm installnode server.js   # listens on :8080, MCP at /mcp

MIT licensed.

來源：README.md，提交 c5d6125

工具

0
工具後設資料尚未被收錄。

版本歷史

1
  1. v1.0.0最新Oct 2, 2026