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Fliprofit MCP server

Which MCP servers are Fliprofit's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-29

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Whose server it is
  • Registry namecom.fliprofit/fee-calculatorverified in the MCP registry

The registry name sits under fliprofit.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-29
  • Stateanswerschecked 2026-10-29
  • Tools3
  • Server calls itselffliprofit-mcp
  • Server version1.2.0
  • Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 189 ms.

Should an agent connect itConnect it, with care
  • Its tools do calculate what you keep after platform fees and shipping; compare marketplace fees side by side before listing, but not track inventory and sales with monthly profit totals.

Once connected

  • For "calculate what you keep after platform fees and shipping", the likely first call is calculate_fees.
  • For "compare marketplace fees side by side before listing", the likely first call is compare_platforms.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-29
  • INITE MCP score91 of 100answers 100 · does the job 67 · definitions 100 · context 100 · connects 100
  • What an agent can do with it2 of 3 use cases
  • Answered100% of days7 of 7 daily checks
  • Median first answer166 ms
  • Space in an agent's context≈ 1,077 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · calculate what you keep after platform fees and shipping
  • can do · compare marketplace fees side by side before listing
  • cannot · track inventory and sales with monthly profit totals

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-10-29
  • calculate_fees

    Exact US marketplace fees, payout and profit for one sale on one platform (eBay, Poshmark, Mercari, Whatnot, Depop, Etsy, Facebook Marketplace, Amazon, Grailed, Reverb, TCGplayer, TikTok Shop, Vinted). Same numbers as the Fliprofit…

  • compare_platforms

    Ranks all 13 supported US resale platforms by profit for the same sale (each platform's default options). Returns fees, payout, profit and margin per platform, with a link to each fliprofit.com calculator and the side-by-side compare tool.

  • get_fee_changes

    Machine-readable log of real, dated US marketplace fee changes (rate changes, new fees, caps, promotions, ending discounts), each with the platform's own source URL and the date Fliprofit last verified it. Filter by platform, by effective…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "fee-calculator": {
      "type": "http",
      "url": "https://mcp.fliprofit.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http fliprofit https://mcp.fliprofit.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.fliprofit.com/mcp as a custom connector in the settings.

OpenAPI spec

5 paths, read 2026-10-29. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.