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mcp-vies-eu

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mcp-vies-eu

EU VIES VAT-number validation MCP (European Commission).

Part of Pipeworx — an MCP gateway connecting AI agents to 1476+ live data sources.

Tools

Tool

Description

check_vat

Validate an EU VAT number against VIES. Returns whether the number is a valid/registered EU VAT registration, plus the registered name and address when the member state publishes them (many states return "---" or empty even for valid numbers). A false result means not registered/invalid. If the national service is temporarily down, userError is MS_UNAVAILABLE/MS_MAX_CONCURRENT_REQ etc. — treat that as "could not check", not "invalid".

service_status

List all EU member states and whether each national VAT-checking service is currently Available or Unavailable, plus overall VIES (VoW) availability. Use this before/after a failed check_vat to tell a temporary national outage apart from a genuinely invalid VAT number.

Related MCP server: goodvat

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "vies-eu": {
      "url": "https://gateway.pipeworx.io/vies-eu/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/vies-eu/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1476+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

ask_pipeworx({ question: "your question about Vies Eu data" })

The gateway picks the right tool and fills the arguments automatically.

More

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

Resources

Related MCP Connectors

Related MCP Servers

  • goodvat

    goodvat
    A
    license
    B
    quality
    C
    maintenance
    Enables AI assistants to answer tax compliance questions (VAT, sales tax, GST) and validate EU VAT numbers in real time via the VIES registry.
    2
    16 npm
    MIT

  • vies-smoother

    Lucrumist
    A
    license
    Not graded
    quality
    C
    maintenance
    SLA'd EU VAT number validation for AI agents via VIES, with caching and circuit-breaking to handle flaky upstream, returning valid/invalid/unavailable responses.
    MIT

  • honest-vies-mcp

    bartosz-kuc
    A
    license
    A
    quality
    B
    maintenance
    Local MCP server for validating EU VAT numbers using the official VIES API. Enables AI to check VAT validity and optionally retrieve consultation numbers for legal proof.
    2
    MIT