mcp-fns-calc MCP Server

by atomno-mcp Your server? Claim it

local only

mcp-fns-calc runs on your own machine — the client starts it, so there is no endpoint to ping. 502 installs a week from pypi. Last commit 2 Sep 2026.

Russian tax calculators (VAT, USN, NDFL) and FNS fiscal-status checks via MCP.

Installs per day peak 321 · avg 33 · +337% w/w

a month agotoday

502

Installs / week

pypi · atomno-mcp-fns-calc

Stars

0 open issues

2 Sep 2026

Last commit

0 releases in 90 days

MIT

License

Python

Nothing serious here today

Today is the operative word: we check mcp-fns-calc 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 mcp-fns-calc -- uvx atomno-mcp-fns-calc

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

{
  "mcpServers": {
    "mcp-fns-calc": {
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-fns-calc]
command = "uvx"
args = ["atomno-mcp-fns-calc"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-fns-calc": {
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-fns-calc": {
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: MCP_FNS_CALC_TOKEN (API key (Pro tier) for live fiscal-status checks and fresh rates. Calculators work without it.). The author declared them in the registry entry; get the values from the project itself.

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mcp-fns-calc — questions

Answers built from our own checks of this server.

Why is there no uptime for mcp-fns-calc?

mcp-fns-calc 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 pypi package atomno-mcp-fns-calc was installed 502 times last week.

How do I connect mcp-fns-calc?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls atomno-mcp-fns-calc straight from pypi; nothing to host, nothing to sign up for.

How many people use mcp-fns-calc?

The pypi package atomno-mcp-fns-calc was installed 502 times in the last week. Week over week that is +337%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is mcp-fns-calc open source?

Yes — it is published under the MIT licence, written in Python and 1 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.