io.github.davidemena-spec由 GitHub 帳號 davidemena-spec 發布v2026.2.1更新於 Nov 14, 2026
Where to sell an item on 12 US marketplaces: eligibility, fees, profit, target price, payout timing.
發布方自己的服務：Calculator Tools MCP
計算 12 個美國電商平台的賣家費用、淨收入、利潤與目標價格，並建議商品該在哪個平台上架。
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。
把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。
閱讀 https://sourceweft.com/mcp/io.github.davidemena-spec%2Fmarketplace-fees/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。把它新增到你客戶端的 mcpServers 設定中。
{
"mcpServers": {
"marketplace-seller-fee-calculator": {
"type": "http",
"url": "https://marketplace-fee-calculator-api.huggyworks.workers.dev/mcp"
}
}
}List marketplaces
List the supported US marketplaces with their valid categories, options, whether package dimensions are needed, the official fee pages used as sources and the date each was verified. Call this first to find valid category and option values.
無需輸入參數。
Calculate fees and profit
Calculate the seller fees, net payout, profit, margin and ROI for selling one item at a given price on one US marketplace, itemized fee by fee from the marketplace's official fee schedule. For Amazon FBA and Walmart WFS, include package dimensions to add fulfillment fees.
detailoptionspackagecategoryitem_costsale_price必填marketplace必填other_costsshipping_costfulfillment_dateshipping_chargedestimated_sales_taxCompare marketplaces
Rank every supported US marketplace (or a chosen subset) by the profit the seller keeps when selling one item at the same price. Returns the best marketplace, each marketplace's fees, payout and margin, and any marketplaces skipped or rejected with the reason.
detailpackageitem_costoverridessale_price必填other_costsmarketplacesshipping_costfulfillment_dateshipping_chargedestimated_sales_taxFind the price needed for a profit goal
Find the lowest list price on each US marketplace that reaches a goal: a profit in USD, a profit margin percent, or an ROI percent. Results are sorted from cheapest required price; marketplaces where the goal can't be reached are listed with the reason.
detailtarget必填packageitem_costoverridesother_costsmarketplacesshipping_costfulfillment_dateshipping_chargedestimated_sales_taxAdvise where to list an item
Answer "where should I sell this?" for one item. For each US marketplace: whether it accepts the item under its published policies (prohibited and restricted items, condition rules, approval-only categories), the fees and profit at the expected price, the lowest price that meets an optional profit goal, and when the seller gets paid. Every rule cites the official page. Returns picks (highest profit, best margin, fastest payout), ranked marketplaces, ones needing approval, and excluded ones with reasons. Doesn't model demand or the price buyers will pay.
goaldetailpackagesort_bycondition必填item_costitem_type必填overridesattributesother_costsmarketplacesshipping_cost另有 5 個已滿足適用檢查項的 83%
該評分衡量此收錄條目的完整程度，依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價，也不表示伺服器安全或目前可用：可連通性是帶日期的檢查結果，評分也不包含安裝量或使用者評價。
請宣告包含 README 的 GitHub 儲存庫，或在 OAuth 受保護資源後設資料中提供 resource_documentation。
託管服務按其提供方的條款使用，因此這裡不要求授權條款。此檢查項不計入百分比。
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