Validate EU, UK, and AU VAT numbers in real-time with AI-powered fraud risk analysis. Built for developers integrating VAT compliance and ViDA e-invoicing workflows into AI agents.
io.github.OjasKord/vat-validator-mcp
https://vat-validator-mcp-production.up.railway.app
HTTP
1 required env var
How models use it and what it is built for.
Validate EU, UK, and AU VAT numbers in real-time with AI-powered fraud risk analysis. Built for developers integrating VAT compliance and ViDA e-invoicing workflows into AI agents.
Hosted endpoint — paste into any MCP client.
Configuration this server reads at startup.
Anthropic API key for AI-powered fraud risk analysis
HMRC Developer Hub client ID for UK VAT validation
HMRC Developer Hub client secret for UK VAT validation
Where to find authoritative docs and source for VAT Validator.
Paste any of these into Agent Studio after connecting VAT Validator.
Common questions about connecting and running VAT Validator.
What VAT regions does this server validate?
The server validates EU VAT numbers, UK VAT numbers (via HMRC), and Australian VAT (ABN). It also supports ViDA e-invoicing compliance checks for EU jurisdictions.
Do I need HMRC credentials to use this server?
HMRC credentials (HMRC_CLIENT_ID and HMRC_CLIENT_SECRET) are optional but required if you want to validate UK VAT numbers against the live HMRC registry. EU and AU validation work without them.
How does the AI-powered fraud risk analysis work?
The server uses Anthropic's API (via ANTHROPIC_API_KEY) to analyze VAT validation results and flag potential fraud patterns. This requires an active Anthropic API key.
Is this server suitable for production e-invoicing workflows?
Yes—the server is designed for ViDA e-invoicing compliance and real-time VAT validation, making it suitable for production invoicing and compliance systems.
What happens if I don't provide an Anthropic API key?
Without ANTHROPIC_API_KEY, basic VAT validation will still work, but AI-powered fraud risk analysis will not be available. Check the documentation for fallback behavior.
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