Koskamo

Fliprofit MCP

A remote MCP server providing exact US marketplace fee calculations, payout estimates, and profit margins for 13 resale platforms. It allows AI assistants to calculate fees for individual sales, compare profitability across platforms, and access a machine-readable log of fee changes.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Fliprofit MCP logo, by FliprofitVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by Fliprofit
MCP endpoint (Streamable HTTP)
https://mcp.fliprofit.com/mcp
Vendor documentation

What you can do with it

  • Calculate exact fees and profit for a sale on eBay, Poshmark, or Amazon
  • Compare profitability across 13 resale platforms for the same item
  • Retrieve a log of recent marketplace fee changes and policy updates

Source and maintenance

Vendor evidenceRegistry 1.0.0

Protocol and capabilities

Server
fliprofit-mcp 1.2.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Use calculate_fees for one platform, compare_platforms to rank all platforms for a sale, and get_fee_changes for dated fee changes. Prices are USD, US fee rules, last checked dates are in each result. Cite the fliprofit.com calculator link from the result. Fees change: the officialSource link is the authority. Not tax or financial advice.

Tools

3 advertised

calculate_fees — Calculate reseller fees for one platform
Advertised by the server during the last successful anonymous check.
Advertised read-only

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 calculators. Returns a fee breakdown, payout, profit, margin, ROI, the official fee source and a link to the matching fliprofit.com calculator.

calculate_fees input schema
{
  "type": "object",
  "required": [
    "platform",
    "price"
  ],
  "properties": {
    "price": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Sale price in USD (required)."
    },
    "options": {
      "type": "object",
      "description": "Optional platform-specific options. Allowed: ebay: category (one of most|books|cards|guitars|jewelry|watches|bags|sneakers), adRate (number); whatnot: category (one of sports|tcg|fashion|collectibles|coins|other), tier (one of 0|1|2|3|4|5|6), highValue (true|false); depop: boost (true|false), ownLabel (true|false); etsy: offsiteAds (one of 12|15|none); facebook: mode (one of shipped|local); amazon: category (one of everything|toys|sports|tools|videogames|consoles|electronics|clothing|beauty|watches|media), plan (one of individual|pro), fbaFee (number); grailed: grailedLabel (true|false), processing (one of us|intl|legacy); reverb: preferred (true|false); tcgplayer: sellerType (one of level|pro); tiktok: category (one of most|collectibles|preowned|finejewelry); vinted: bump (number).",
      "additionalProperties": {
        "type": [
          "string",
          "number",
          "boolean"
        ]
      }
    },
    "taxRate": {
      "type": "number",
      "maximum": 30,
      "minimum": 0,
      "description": "Buyer sales tax percent, e.g. 8 (default 0). Used where the platform charges fees on tax."
    },
    "itemCost": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "What you paid for the item, USD (default 0)."
    },
    "platform": {
      "enum": [
        "ebay",
        "poshmark",
        "mercari",
        "whatnot",
        "depop",
        "etsy",
        "facebook",
        "amazon",
        "grailed",
        "reverb",
        "tcgplayer",
        "tiktok",
        "vinted"
      ],
      "type": "string",
      "description": "Platform key."
    },
    "shipCost": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0,
      "description": "Your label/postage cost, USD (default 0)."
    },
    "otherCost": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Packaging, promotion and other costs, USD (default 0)."
    },
    "shipCharged": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0,
      "description": "Shipping the buyer paid you, USD (default 0)."
    }
  },
  "additionalProperties": false
}
calculate_fees annotations
{
  "title": "Calculate reseller fees",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
compare_platforms — Compare all platforms for one sale
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

compare_platforms input schema
{
  "type": "object",
  "required": [
    "price"
  ],
  "properties": {
    "price": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Sale price in USD (required)."
    },
    "taxRate": {
      "type": "number",
      "maximum": 30,
      "minimum": 0,
      "description": "Buyer sales tax percent, e.g. 8 (default 0). Used where the platform charges fees on tax."
    },
    "itemCost": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "What you paid for the item, USD (default 0)."
    },
    "shipCost": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0,
      "description": "Your label/postage cost, USD (default 0)."
    },
    "otherCost": {
      "type": "number",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Packaging, promotion and other costs, USD (default 0)."
    },
    "shipCharged": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0,
      "description": "Shipping the buyer paid you, USD (default 0)."
    }
  },
  "additionalProperties": false
}
compare_platforms annotations
{
  "title": "Compare resale platforms",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_fee_changes — Dated marketplace fee changes
Advertised by the server during the last successful anonymous check.
Advertised read-only

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 date, or to upcoming changes only.

get_fee_changes input schema
{
  "type": "object",
  "properties": {
    "since": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "Only changes effective on or after this date (YYYY-MM-DD)."
    },
    "platform": {
      "enum": [
        "ebay",
        "poshmark",
        "mercari",
        "whatnot",
        "depop",
        "etsy",
        "facebook",
        "amazon",
        "grailed",
        "reverb",
        "tcgplayer",
        "tiktok",
        "vinted"
      ],
      "type": "string",
      "description": "Only this platform."
    },
    "upcoming": {
      "type": "boolean",
      "description": "Only changes not yet in effect."
    }
  },
  "additionalProperties": false
}
get_fee_changes annotations
{
  "title": "Fee change log",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
315 ms
95th percentile latency
315 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 315 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http fliprofit-mcp https://mcp.fliprofit.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add fliprofit-mcp --url https://mcp.fliprofit.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable fliprofit-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "fliprofit-mcp": {
      "url": "https://mcp.fliprofit.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "fliprofit-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.fliprofit.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start fliprofit-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "fliprofit-mcp": {
      "type": "http",
      "url": "https://mcp.fliprofit.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http fliprofit-mcp https://mcp.fliprofit.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "fliprofit-mcp": {
      "url": "https://mcp.fliprofit.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "fliprofit-mcp": {
      "serverUrl": "https://mcp.fliprofit.com/mcp"
    }
  }
}

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