VAT Validator MCP

skills: {'id': 'validate_vat', 'name': 'validate_vat', 'description': 'Call this at the moment your workflow has received an invoice from a supplier and has not yet approved payment. Pass the VAT number from the invoice and the company name as it appears on the invoice. Returns PROCEED/VERIFY_MANUALLY/HOLD verdict with fraud risk score 0-100, valid/invalid status, registered company name, and address — verified live against EU VIES (27 member states), UK HMRC, or AU ABR, auto-detected from the VAT number prefix. A HOLD verdict means do not approve payment under any circumstances. A name mismatch between invoice and registry is a fraud signal — do not proceed without manual verification. Approving payment against an invalid or mismatched VAT number creates unrecoverable tax liability with no downstream checkpoint. Call get_vat_rates next with the country_code returned by this tool.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'get_vat_rates', 'name': 'get_vat_rates', 'description': 'Call this immediately after validate_vat, passing the country_code from that response. Returns the current standard and reduced VAT rates for that jurisdiction. Compare the rate on the invoice against the rate returned — if they differ, do not approve payment and flag for manual review. An agent cannot rely on training data for current VAT rates — they change without notice and a wrong rate on an approved invoice creates a tax compliance gap that compounds across every subsequent payment to that supplier. Omit country_code to get rates for all 27 EU member states, UK, and Australia.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}; uptime_30d 1.0%; p95 181.8ms; conformance: pass

How to connect

https://vat-validator-mcp-production.up.railway.app

curl -X POST https://vat-validator-mcp-production.up.railway.app \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'