English Français العربية

VAT Validator MCP

Official registry Security

Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http vat-validator-mcp 'https://vat-validator-mcp-production.up.railway.app'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "vat-validator-mcp": {
            "type": "http",
            "url": "https://vat-validator-mcp-production.up.railway.app"
        }
    }
}
NPM package vat-validator-mcp
Claude Code 
claude mcp add vat-validator-mcp -e 'ANTHROPIC_API_KEY=<your anthropic_api_key>' -e 'HMRC_CLIENT_ID=<your hmrc_client_id>' -e 'HMRC_CLIENT_SECRET=<your hmrc_client_secret>' -- npx -y vat-validator-mcp@2.0.30
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "vat-validator-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "vat-validator-mcp@2.0.30"
            ],
            "env": {
                "ANTHROPIC_API_KEY": "<your anthropic_api_key>",
                "HMRC_CLIENT_ID": "<your hmrc_client_id>",
                "HMRC_CLIENT_SECRET": "<your hmrc_client_secret>"
            }
        }
    }
}

Environment variables

  • ANTHROPIC_API_KEY required secret Anthropic API key for AI-powered fraud risk analysis
  • HMRC_CLIENT_ID secret HMRC Developer Hub client ID for UK VAT validation
  • HMRC_CLIENT_SECRET secret HMRC Developer Hub client secret for UK VAT validation

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. VAT Validator MCP
  2. What This Solves
  3. Tools
  4. Add to Your Agent
  5. Pricing
  6. Search Terms

VAT Validator MCP

AI-powered VAT fraud detection and live VAT number validation for AI agents.

Validates EU, UK, and AU VAT numbers against authoritative live sources and uses AI pattern analysis to detect invoice fraud before payment is authorised. Built for compliance agents, invoice processing workflows, and supplier onboarding pipelines.

What This Solves

VAT fraud costs EU businesses €50bn annually. The most common attack vectors — missing trader fraud, carousel fraud, deregistered entity re-use — share one common signal: a VAT number that looks valid but isn't registered to the entity on the invoice.

Claude and other LLMs cannot reliably check live VAT registration status from training data. This tool calls the authoritative sources directly:

  • EU VIES — all 27 member states, real-time
  • UK HMRC VAT API v2 — OAuth2, authoritative
  • AU ABR — Australian Business Register

Tools

ToolFree TierUse When
validate_vat50/monthBefore approving any EU, UK, or AU supplier invoice -- auto-detects jurisdiction, validates, and runs AI fraud analysis in one call
get_vat_rates50/monthBefore calculating cross-border invoice totals

Add to Your Agent

Claude Code — add to .mcp.json: { "mcpServers": { "vat-validator": { "type": "sse", "url": "https://vat-validator-mcp-production.up.railway.app/sse"; } } }

LangChain: from langchain_mcp import MCPClient client = MCPClient( "https://vat-validator-mcp-production.up.railway.app/sse"; )

OpenAI Agents SDK: from agents.mcp import MCPServerSse mcp_server = MCPServerSse( params={ "url": "https://vat-validator-mcp-production.up.railway.app/sse"; } )

Pricing

TierCallsPrice
Free50/monthNo card required
Pay-as-you-goUnlimited$0.010/query, billed monthly
Bundle 500500 calls, never expire$8
Bundle 20002000 calls, never expire$28

Upgrade: https://kordagencies.com

Search Terms

VAT number validation · EU VAT check · VIES lookup · HMRC VAT verification · VAT fraud detection · invoice VAT compliance · missing trader fraud · carousel fraud detection · cross-border invoice check · supplier VAT screening · VAT registration verification · EU invoice compliance · AU ABR lookup · UK VAT API · invoice fraud detection API · supplier VAT fraud risk · accounts payable compliance agent · VAT invoice audit · AI invoice compliance · MCP VAT validation

Frequently asked questions

What is VAT Validator MCP?

Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.

How do I install VAT Validator MCP?

It runs as a remote server. In Claude Code: claude mcp add --transport http vat-validator-mcp 'https://vat-validator-mcp-production.up.railway.app'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does VAT Validator MCP need an API key?

Yes. It expects ANTHROPIC_API_KEY, HMRC_CLIENT_ID, HMRC_CLIENT_SECRET, which you set in its configuration.

Is VAT Validator MCP open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains VAT Validator MCP?

It is published by OjasKord. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.