Aether Layer: EU VAT number validation (VIES) for Cursor

com.aether-layer/eu-vat-validate

Validates EU VAT numbers: local format/checksum for 27 states + XI, then VIES (cached 24 h).

client:Cursor transport:streamable-http tools:2

Install Aether Layer: EU VAT number validation (VIES) in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "eu-vat-validate": {
      "url": "https://aether-layer.com/api/mcp?src=mcpreg"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs