PluginBench
MCP Server

mcp-fns-calc MCP Server

io.github.atomno-mcp/mcp-fns-calc

RepositoryRegistry

What is the mcp-fns-calc MCP server?

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

How to install mcp-fns-calc

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • MCP_FNS_CALC_TOKEN
    secret

    API key (Pro tier) for live fiscal-status checks and fresh rates. Calculators work without it.

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp-fns-calc": {
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "env": {
        "MCP_FNS_CALC_TOKEN": "<YOUR_MCP_FNS_CALC_TOKEN>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp-fns-calc": {
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "env": {
        "MCP_FNS_CALC_TOKEN": "<YOUR_MCP_FNS_CALC_TOKEN>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "mcp-fns-calc": {
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "env": {
        "MCP_FNS_CALC_TOKEN": "<YOUR_MCP_FNS_CALC_TOKEN>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "mcp-fns-calc": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "atomno-mcp-fns-calc"
      ],
      "env": {
        "MCP_FNS_CALC_TOKEN": "<YOUR_MCP_FNS_CALC_TOKEN>"
      }
    }
  }
}
Claude Code
claude mcp add mcp-fns-calc --env MCP_FNS_CALC_TOKEN=<YOUR_MCP_FNS_CALC_TOKEN> -- uvx atomno-mcp-fns-calc

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