# VIES Smoother Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## VIES Smoother

Validate EU VAT numbers with honest results and 100 free lookups

- Record: https://musedirectory.ai/connector/vies-smoother
- Category: Finance & Bills
- Developer: vantane.com (https://vantane.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 500ms, checked 2026-09-28T07:30:56Z
- Endpoint: https://vantane.com/mcp
- Auth: Needs an access key; Pricing: unknown
- Screening: Screened, no issues found (2026-09-25T03:01:12Z)
- Source: Found in the official MCP Registry (io.github.Lucrumist/vies-smoother) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.Lucrumist%2Fvies-smoother

Connects to the EU VIES VAT validation service to verify VAT numbers for EU member states. Returns a clear valid, invalid, or unavailable result without guessing. Useful for businesses verifying customer tax IDs during checkout or compliance.

Example request: "Check if a customer's German VAT number is valid before processing their order"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use VIES Smoother to help me. It is a free service with an MCP server at https://vantane.com/mcp. It needs an API key from vantane.com; ask me to enter it through your secure credential prompt. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- validate_vat: Validate a single EU VAT number. Costs 1 credit unless upstream is unavailable and there's no cache (then it's free and honest about it). Args: country_code: 2-letter EU member state code (e.g. DE, FR, EL, XI). vat_number: The VAT number without the country prefix. 
- validate_vat_batch: Validate up to 50 EU VAT numbers in one call. 1 credit per item that gets a real answer (unavailable_upstream items are free). Args: items: list of {"country_code": str, "vat_number": str}, max 50. 

Screening checks:
- MCP handshake: pass (Answered in 272ms)
- Domain against threat feeds (Cloudflare security DNS): pass (vantane.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (2 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)