Skip to content
mcp/harbor
Grok

vatnode mcp for Grok

io.github.vatnode/vatnode-mcp

Official MCP server: EU VAT validation via VIES, plus offline rates and format checks.

client:Grok transport:stdio runtime:npm

Install vatnode mcp in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "vatnode-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "vatnode-mcp"
      ],
      "env": {
        "VATNODE_API_KEY": "<VATNODE_API_KEY>",
        "VATNODE_API_URL": "<VATNODE_API_URL>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

vatnode mcp in other clients

vatnode mcp MCP server