# Vies Eu (npm · @pipeworx/mcp-vies-eu)

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

- Trust score: 84/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 77/100, [markdown](https://verifymcp.io/servers/pipeworx-io-vies-eu/vies-eu-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-vies-eu/vies-eu-mcp)
- npm · `@pipeworx/mcp-vies-eu`: 84/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu.md), [page](https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-vies-eu`
- Version: `0.2.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-vies-eu).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 7 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 300 tokens (~150/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Vies Eu MCP server?

Vies Eu runs locally as an npm package, launched with npx -y @pipeworx/mcp-vies-eu. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add pipeworx-io-vies-eu -- npx -y @pipeworx/mcp-vies-eu
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-vies-eu": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-vies-eu"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-vies-eu": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-vies-eu"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-vies-eu -- npx -y @pipeworx/mcp-vies-eu
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-vies-eu": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-vies-eu"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-vies-eu --command npx --arg -y --arg @pipeworx/mcp-vies-eu
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-vies-eu:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-vies-eu"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-vies-eu": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-vies-eu"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-vies-eu -t stdio -c npx -a -y @pipeworx/mcp-vies-eu
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-vies-eu": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-vies-eu"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-03 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 81)

First indexed and scored.

## MCP tools (2)

### `check_vat` (~183 tokens)

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".

Input parameters:

- `countryCode` (string, required): 2-letter EU member-state code = the VAT prefix, e.g. "DE", "FR", "IT". Greece is "EL" (not "GR").
- `vatNumber` (string, required): The VAT number WITHOUT the country prefix, e.g. "811569869". If you include the prefix (e.g. "DE811569869") it is stripped automatically.

### `service_status` (~62 tokens)

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.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu#diagnostics

## Score history

- 2026-11-05: 84
- 2026-11-04: 84
- 2026-11-03: 84
- 2026-11-02: 83
- 2026-11-01: 83
- 2026-10-31: 82
- 2026-10-30: 82
- 2026-10-29: 81

## Common questions

### What is the Vies Eu MCP server?

Vies Eu is an MCP server listed in the public MCP registry as io.github.pipeworx-io/vies-eu. EU VIES VAT-number validation MCP (European Commission). This page covers its npm package (@pipeworx/mcp-vies-eu).

### Is the Vies Eu MCP server safe to use?

Vies Eu scores 84 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Vies Eu MCP server expose?

Vies Eu exposes 2 tools: check_vat, service_status. Their descriptions and schemas cost roughly 245 tokens of context every time the server is loaded.

### Is the Vies Eu MCP server still maintained?

Vies Eu is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Vies Eu MCP server under?

Vies Eu declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the Vies Eu MCP server?

VerifyMCP ran 16 checks on Vies Eu, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-vies-eu
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-vies-eu
- Repository: https://github.com/pipeworx-io/mcp-vies-eu
- Website: https://pipeworx.io/packs/vies-eu
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-vies-eu/pipeworx-mcp-vies-eu