Seller Fees Calculator MCP Server

by narwhalthepong Your server? Claim it

local only

Seller Fees Calculator runs on your own machine — the client starts it, so there is no endpoint to ping. 474 installs a week from npm. Last commit 28 Oct 2026.

Gumroad, Stripe, PayPal and Etsy seller fees, payouts and break-even prices. Local, no API key.

Installs per day peak 18 · avg 1

a month agotoday

474

Installs / week

npm · seller-fees-mcp

Stars

0 open issues

28 Oct 2026

Last commit

4 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check Seller Fees Calculator every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add seller-fees-mcp -- npx -y seller-fees-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "seller-fees-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "seller-fees-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.seller-fees-mcp]
command = "npx"
args = ["-y", "seller-fees-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "seller-fees-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "seller-fees-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "seller-fees-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "seller-fees-mcp"
      ]
    }
  }
}

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Seller Fees Calculator — questions

Answers built from our own checks of this server.

Why is there no uptime for Seller Fees Calculator?

Seller Fees Calculator runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package seller-fees-mcp was installed 474 times last week.

How do I connect Seller Fees Calculator?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls seller-fees-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Seller Fees Calculator?

The npm package seller-fees-mcp was installed 474 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Seller Fees Calculator open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.