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Summary
Validate EU VAT numbers via the European Commission VIES (VAT Information Exchange System) REST API. Confirms that a VAT number is registered for intra-Community trade and returns the trader name and address when the member state exposes them.
Try asking
Example prompts for VIES VAT Validation
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → VIES VAT Validation, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
VIES VAT Validation + ChatGPT
Validate EU VAT numbers via the European Commission VIES (VAT Information Exchange System) REST API. Confirms that a VAT number is registered for intra-Community trade and returns the trader name and address when the member state exposes them.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
(none — public API)
Step 1 — Get credentials
Use for B2B invoice compliance: before issuing an intra-EU invoice without VAT, confirm the buyer's VAT number is valid via this adapter.
Country codes: ISO 3166-1 alpha-2, plus EL for Greece and XI for Northern Ireland. Common codes: DE, AT, FR, IT, ES, NL, BE, PL, DK, SE, FI, IE, PT, CZ, HU, RO.
Format: VAT number must NOT include the country code prefix (e.g. for DE123456789 pass countryCode='DE' and vatNumber='123456789').
Response: valid: true/false, plus name and address when provided by the member state. Some countries (DE, ES) do not return name/address for privacy reasons — in that case only valid is authoritative.
…(continued in the in-app connector instructions)
Step 2 — Install the adapter
git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d
Step 3 — Add the connector in ChatGPT
ChatGPT supports MCP servers via the Connectors feature (Plus / Pro / Team / Enterprise plans). The free tier does not support custom connectors.
- Open ChatGPT → Settings → Connectors (or click the 🔧 icon in the composer → Manage connectors).
- Click "Add custom connector".
- Fill in:
- Name:
VIES VAT Validation - MCP server URL:
https://cloud.anythingmcp.com/mcp - Authentication: Bearer token → paste your MCP API key (from AnythingMCP → Profile → MCP API Keys → New Key)
- Name:
- Click Connect to authorize.
Available tools
| Tool | What it does |
|---|---|
vies_check_vat | Check whether an EU VAT number is valid and, when available, return the registered trader name and address |
FAQ
Does ChatGPT free tier work with custom MCP connectors? No — Plus, Pro, Team or Enterprise required.
Next steps
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