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atomno-mcp/mcp-fns-calc

MCP-сервер налоговых расчётов РФ: НДС, УСН, взносы ИП, НДФЛ, патент и пени — без интернета. Плюс проверки статусов. Russian tax calculator MCP.

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Our verdict

Not reviewed yet

We have not reviewed atomno-mcp/mcp-fns-calc yet

No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.

How we review records

From the listing

About atomno-mcp/mcp-fns-calc

MCP server for Russian tax calculations: VAT, simplified tax system, individual entrepreneur contributions, personal income tax, patent, and penalties. Operates offline and includes status checks. Written in Python.

Best for

Developers building Russian tax calculation tools within MCP-based workflows.

Use cases

  • Calculate VAT and simplified tax amounts in a local MCP workflow
  • Compute individual entrepreneur contributions and penalties
  • Check tax statuses without an internet connection

Notes

1 stars on GitHub. Last updated 2026-09-02. Licensed MIT.

Pros

  • Offline operation removes external service dependency
  • Covers multiple Russian tax types in a single tool
  • Simple MCP server integration for Python-based automation

Cons

  • Very small project with limited community support (1 star)
  • Scoped only to Russian tax rules, not adaptable to other jurisdictions
  • Status check functionality is sparsely documented

Key facts

What we have checked

Not checked yet. Dated facts such as prices, releases and repository activity appear here once we have confirmed them from a source.

How to use

How to set it up

As the listing publishes it. We have not run this install.

Install

uvx atomno-mcp-fns-calc            # запустить без установки

Tools exposed

  • MCP_FNS_CALC_TOKEN
  • MCP_FNS_CALC_API_BASE
  • MCP_FNS_CALC_TIMEOUT
  • calc_vat
  • calc_usn
  • calc_insurance_ip
  • calc_ndfl
  • calc_patent
  • calc_penalty
  • get_rates
  • check_selfemployed
  • check_ip_status
  • check_disqualified
  • check_account_block
  • check_tax_arrears

Clients the listing names (not checked here)

Claude Desktop, Cursor

Install

Add atomno-mcp/mcp-fns-calc to your client

Not verified yet

Our lab has not run this server yet. "Config checked" on a client means the recipe matches that client's documented config format; it does not mean we ran it.

Claude Code

Config checked

Run in your terminal (runs on your computer)

claude mcp add --transport stdio atomno-mcp-mcp-fns-calc -- uvx atomno-mcp-fns-calc@0.1.7

Version 0.1.7 · From the Official MCP registry, read · Format checked against Claude Code's config docs

Claude Desktop

Config checked

Add to claude_desktop_config.json (runs on your computer)

{
  "mcpServers": {
    "atomno-mcp-mcp-fns-calc": {
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc@0.1.7"
      ]
    }
  }
}

Version 0.1.7 · From the Official MCP registry, read · Format checked against Claude Desktop's config docs

Cursor

Config checked

Add to .cursor/mcp.json (runs on your computer)

{
  "mcpServers": {
    "atomno-mcp-mcp-fns-calc": {
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc@0.1.7"
      ]
    }
  }
}

Version 0.1.7 · From the Official MCP registry, read · Format checked against Cursor's config docs

VS Code

Config checked

Add to .vscode/mcp.json (runs on your computer)

{
  "servers": {
    "atomno-mcp-mcp-fns-calc": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc@0.1.7"
      ]
    }
  }
}

Version 0.1.7 · From the Official MCP registry, read · Format checked against VS Code's config docs

Codex

Config checked

Add to ~/.codex/config.toml (runs on your computer)

[mcp_servers.atomno-mcp-mcp-fns-calc]
command = "uvx"
args = ["atomno-mcp-fns-calc@0.1.7"]

Version 0.1.7 · From the Official MCP registry, read · Format checked against Codex's config docs

  • ChatGPT: ChatGPT connects only to remote servers that need no API key.

Recipes come from the server's entry in the official MCP registry. Check the package name before you run it, and keep keys out of shared files.

Works with

What atomno-mcp/mcp-fns-calc connects to

5 clients, each with how we know and when we checked.

Works withTypeHow we knowChecked
Claude CodeClientInstall recipe matches the client's documented formatRuns locally, version 0.1.7Config checkedClaude Code docs
Claude DesktopClientInstall recipe matches the client's documented formatRuns locally, version 0.1.7Config checkedClaude Desktop docs
CursorClientInstall recipe matches the client's documented formatRuns locally, version 0.1.7Config checkedCursor docs
VS CodeClientInstall recipe matches the client's documented formatRuns locally, version 0.1.7Config checkedVS Code docs
CodexClientInstall recipe matches the client's documented formatRuns locally, version 0.1.7Config checkedCodex docs

Sources

Where this comes from

No sources recorded yet. Each source we check is listed here with the date we checked it.

A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.

Changelog

What changed

No changes recorded yet. Releases, price changes and deprecations appear here, with their dates, once we track them for this record.

Pairs with

Other entries in the index that connect to this one. Click through to see the chain.

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