Aether Layer: EU VAT number validation (VIES)

Connect Remote server

claude mcp add --transport http eu-vat-validate https://aether-layer.com/api/mcp?src=mcpreg --header "X-Api-Key: <X_API_KEY>"

{
  "mcpServers": {
    "eu-vat-validate": {
      "url": "https://aether-layer.com/api/mcp?src=mcpreg",
      "headers": {
        "X-Api-Key": "<X_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "eu-vat-validate": {
      "type": "http",
      "url": "https://aether-layer.com/api/mcp?src=mcpreg",
      "headers": {
        "X-Api-Key": "<X_API_KEY>"
      }
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://aether-layer.com/api/mcp?src=mcpreg

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 2 found in our last check

• validate_vat

  Validate an EU VAT number (27 member states + XI Northern Ireland). Normalizes the input, checks the national format and checksum locally, then queries VIES (European Commission) live with limited retries. status: valid | invalid (local checksum/format failed, or VIES answered v…

• agent_readiness_check

  Deterministically grade an MCP tool catalog or a third-party x402 endpoint. Provide exactly one of: mcp_url (public https MCP server; initialize + tools/list), x402_url (public https resource; the gateway requests it WITHOUT an X-PAYMENT header and reads the 402), or tools (a JS…

Headers

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