Russian tax calculators (VAT, USN, NDFL) and FNS fiscal-status checks via MCP.
Connect Runs on your machine
claude mcp add mcp-fns-calc -e MCP_FNS_CALC_TOKEN=<MCP_FNS_CALC_TOKEN> -- uvx atomno-mcp-fns-calc==0.1.7
{
"mcpServers": {
"mcp-fns-calc": {
"command": "uvx",
"args": [
"atomno-mcp-fns-calc==0.1.7"
],
"env": {
"MCP_FNS_CALC_TOKEN": "<MCP_FNS_CALC_TOKEN>"
}
}
}
}
{
"mcpServers": {
"mcp-fns-calc": {
"command": "uvx",
"args": [
"atomno-mcp-fns-calc==0.1.7"
],
"env": {
"MCP_FNS_CALC_TOKEN": "<MCP_FNS_CALC_TOKEN>"
}
}
}
}
{
"servers": {
"mcp-fns-calc": {
"type": "stdio",
"command": "uvx",
"args": [
"atomno-mcp-fns-calc==0.1.7"
],
"env": {
"MCP_FNS_CALC_TOKEN": "<MCP_FNS_CALC_TOKEN>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
MCP_FNS_CALC_TOKENOptional, secret | API key (Pro tier) for live fiscal-status checks and fresh rates. Calculators work without it. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 2 Sep 2026 |
| Last updated | 2 Sep 2026 |
| Registry name | io.github.atomno-mcp/mcp-fns-calc |
More other servers See all
Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.
