VAT Validator MCP
Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.
Connect it
Settings → Connectors → Add custom connector
URL: https://vat-validator-mcp-production.up.railway.appSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://vat-validator-mcp-production.up.railway.app{
"mcpServers": {
"vat-validator-mcp": {
"url": "https://vat-validator-mcp-production.up.railway.app"
}
}
}claude mcp add --transport http vat-validator-mcp https://vat-validator-mcp-production.up.railway.app{
"servers": {
"vat-validator-mcp": {
"type": "http",
"url": "https://vat-validator-mcp-production.up.railway.app"
}
}
}{
"mcpServers": {
"vat-validator-mcp": {
"command": "npx",
"args": [
"-y",
"vat-validator-mcp@2.0.30"
],
"env": {
"ANTHROPIC_API_KEY": "<value>",
"HMRC_CLIENT_ID": "<value>",
"HMRC_CLIENT_SECRET": "<value>"
}
}
}
}claude mcp add vat-validator-mcp -- npx -y vat-validator-mcp@2.0.302 tools, verified live
validate_vatValidates a VAT number against live government registries. Call this BEFORE submitting any B2B payment via an agentic payment rail -- at the moment a VAT number appears on a supplier invoice and Stripe MPP, Alipay AI Pay, or Shopify UCP has not yet been called -- and BEFORE submitting any structured invoice under e-invoicing mandates now active or imminent: Belgium B2B (active Jan 2026), France B2
get_vat_ratesRetrieves current VAT rates for a jurisdiction. Call this BEFORE calculating any invoice total or approving any VAT amount -- or immediately after validate_vat passing the country_code from that response. Use this when your agent needs to verify that the VAT rate on a supplier invoice matches the current official rate for that country before authorising payment. Returns current standard and reduce
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