Reseller True-Profit & Fee Calculator
RemoteAbout Reseller True-Profit & Fee Calculator
Reseller True-Profit & Fee Calculator is an MCP server for resellers who need to estimate net proceeds across seven US marketplaces. It itemizes fees, compares platform outcomes, and calculates prices needed to reach a target profit.
Key features
- 01Net profit, margin, and ROI calculation
- 02Itemized marketplace fee breakdowns
- 03Comparison across seven platforms
- 04Breakeven price for a target profit
- 05Dated fee schedules and custom fee adjustments
Use cases
- 01Estimate proceeds after fees, shipping, and item costs
- 02Compare where to list the same item
- 03Set a listing price to meet a profit target
MCP support
Provides tools for profit calculation, platform comparison, breakeven pricing, and fee schedule lookup to MCP clients.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://reseller-fees-mcp.mcpize.run/mcpclaude mcp add --transport http tylerscomic-lab-reseller-fees https://reseller-fees-mcp.mcpize.run/mcp{"mcpServers":{"tylerscomic-lab-reseller-fees":{"type":"http","url":"https://reseller-fees-mcp.mcpize.run/mcp"}}}Open in Cursor{"servers":{"tylerscomic-lab-reseller-fees":{"type":"http","url":"https://reseller-fees-mcp.mcpize.run/mcp"}}}Open in VS Code{"mcpServers":{"tylerscomic-lab-reseller-fees":{"type":"http","url":"https://reseller-fees-mcp.mcpize.run/mcp"}}}{"mcpServers":{"tylerscomic-lab-reseller-fees":{"serverUrl":"https://reseller-fees-mcp.mcpize.run/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEReseller 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:
npm install
node server.js # listens on :8080, MCP at /mcp
MIT licensed.
Comments
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