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mcp/harbor
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Marketplace Seller Fee Calculator MCP

v2026.2.1

io.github.davidemena-spec/marketplace-fees

Where to sell an item on 12 US marketplaces: eligibility, fees, profit, target price, payout timing.

transport:streamable-http tools:5
Website

Target client

run in your project directory 

claude mcp add --transport http marketplace-fees https://marketplace-fee-calculator-api.huggyworks.workers.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

list_marketplaces Read-only

list marketplaces

calculate_fees

calculate fees

compare_marketplaces

compare marketplaces

find_target_price Read-only

find target price

advise_marketplaces

advise marketplaces

All 5 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.