Koskamo

VAT White List MCP

A Model Context Protocol server providing AI assistants with typed access to the Polish VAT White List. It allows users to look up taxpayers by NIP, REGON, or bank account and verify account associations. The server exposes tools for searching by identifier, bulk lookups, and checking bank account associations, with local validation for checksums and support for both sandbox and production environments.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

VAT White List MCP logo, by Smart Mobile HouseCommunity listingLocal stdioSource reviewed; not executedPublished by Smart Mobile House
Vendor documentation

What you can do with it

  • Look up a taxpayer by 10-digit NIP
  • Look up a taxpayer by 9- or 14-digit REGON
  • Find taxpayers associated with a bank account
  • Check an account's association with an active taxpayer

Source and maintenance

Community listingRegistry 0.1.0
mcp-registry: io.github.SmartMobileHouse/vat-whitelist-mcp@0.1.0Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

vat-whitelist-mcp 0.1.0

pypi
vat-whitelist-mcp package definition
{
  "version": "0.1.0",
  "transport": "stdio",
  "identifier": "vat-whitelist-mcp",
  "registryType": "pypi",
  "environmentVariables": [
    {
      "name": "VAT_ENV",
      "format": "string",
      "description": "test (default sandbox) or prod (live data)."
    },
    {
      "name": "VAT_TIMEOUT",
      "format": "number",
      "description": "Positive finite HTTP timeout in seconds (default 30)."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "vat-white-list-mcp": {
      "command": "uvx",
      "args": [
        "vat-whitelist-mcp==0.1.0"
      ],
      "env": {
        "VAT_ENV": "<YOUR_VAT_ENV>",
        "VAT_TIMEOUT": "<YOUR_VAT_TIMEOUT>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "vat-white-list-mcp": {
      "command": "uvx",
      "args": [
        "vat-whitelist-mcp==0.1.0"
      ],
      "env": {
        "VAT_ENV": "<YOUR_VAT_ENV>",
        "VAT_TIMEOUT": "<YOUR_VAT_TIMEOUT>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "vat-white-list-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "vat-whitelist-mcp==0.1.0"
      ],
      "env": {
        "VAT_ENV": "<YOUR_VAT_ENV>",
        "VAT_TIMEOUT": "<YOUR_VAT_TIMEOUT>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "vat-white-list-mcp": {
      "command": "uvx",
      "args": [
        "vat-whitelist-mcp==0.1.0"
      ],
      "env": {
        "VAT_ENV": "<YOUR_VAT_ENV>",
        "VAT_TIMEOUT": "<YOUR_VAT_TIMEOUT>"
      }
    }
  }
}

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