MCP Servers

Giltiq MCP Server

Validates EU VAT IDs using VIES and Germany's BZSt with automatic failover and legally binding qualified confirmations per §18e UStG, ensuring reliability even when VIES is down.

README

@giltiq/mcp

MCP server for EU VAT validation with multi-source reliability (VIES + Germany's BZSt), automatic failover, and legally binding qualified confirmations per §18e UStG. Works when VIES is down. No other MCP server provides this.

Install

npx @giltiq/mcp

Configure

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "giltiq": {
      "command": "npx",
      "args": ["-y", "@giltiq/mcp"],
      "env": {
        "GILTIQ_API_KEY": "gq_live_your_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "giltiq": {
      "command": "npx",
      "args": ["-y", "@giltiq/mcp"],
      "env": {
        "GILTIQ_API_KEY": "gq_live_your_key_here"
      }
    }
  }
}

Windsurf

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "giltiq": {
      "command": "npx",
      "args": ["-y", "@giltiq/mcp"],
      "env": {
        "GILTIQ_API_KEY": "gq_live_your_key_here"
      }
    }
  }
}

No API key? The server works without one in anonymous mode (10 free validations, VIES only). Set GILTIQ_API_KEY to unlock 100 calls/month, qualified confirmations, and usage tracking.

Tools

Tool	Description
`validate_vat_id`	Validate an EU VAT ID against VIES + BZSt with automatic failover and cached fallback. Returns company data and source freshness.
`qualified_confirmation`	Request a legally binding BZSt qualified confirmation per §18e UStG for audit-proof cross-border VAT exemption. Returns match results and a `receipt_id` for audit retrieval.
`get_qualified_confirmation`	Retrieve a past qualified confirmation receipt by `receipt_id`. Use for §18e UStG audit evidence.
`list_qualified_confirmations`	List qualified confirmation receipts you've issued, newest first. Filter by `target_vat_id` to find past audits of a specific customer.
`check_api_status`	Check real-time availability and latency of VIES and BZSt upstream sources.
`get_usage`	Get current API usage: calls used, monthly limit, tier, and reset date.

Environment Variables

Variable	Required	Description
`GILTIQ_API_KEY`	No	API key for authenticated access. Without it, runs in anonymous mode (10 lifetime calls). Get one free at giltiq.de.
`GILTIQ_API_URL`	No	Override the API base URL (default: `https://api.giltiq.de`).

License

MIT

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