# io.github.DeJo90/nace-mcp (npm · nace-mcp)

Browse, search and fuzzy-match NACE Rev. 2.1 economic activity classification codes.

- Trust score: 70/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `nace-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp.md), [page](https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp)

## Channel facts

- Registry: `npm`
- Package: `nace-mcp`
- Version: `1.0.1`
- 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 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 164 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 80/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 264 tokens (~66/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add dejo90-nace-mcp -- npx -y nace-mcp
```

### Codex

```bash
codex mcp add dejo90-nace-mcp -- npx -y nace-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dejo90-nace-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "nace-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dejo90-nace-mcp --command npx --arg -y --arg nace-mcp
```

### Hermes

```yaml
mcp_servers:
  dejo90-nace-mcp:
    command: "npx"
    args: ["-y", "nace-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "dejo90-nace-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "nace-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 69, +48)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 21, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-31 (score 28, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-29 (score 46, +20)

- [functional regression] Dependency health: partial → unverified
- [functional improvement] Tool coverage: unverified → 100

### 2026-07-28 (score 26, −20)

- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Dependency health: unverified → partial
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (4)

### `nace_get` (~69 tokens)

Returns full details for a single NACE Rev. 2.1 code: code, label, level (section/division/group/class), and parent code.

Input parameters:

- `code` (string, required): NACE code — e.g. 'A', '01', '01.1', '01.11'

### `nace_browse` (~61 tokens)

Returns direct children of a NACE code (code + label only). Omit parent_code to get all 22 top-level sections. Max 50 results.

Input parameters:

- `parent_code` (string): Parent NACE code. Omit to list top-level sections.

### `nace_search` (~59 tokens)

Case-insensitive substring search across all 1,047 NACE Rev. 2.1 activity labels. Returns up to 10 matches with code, label, and level.

Input parameters:

- `query` (string, required): Substring to search for in activity labels

### `nace_suggest` (~75 tokens)

Fuzzy-match a free-text activity description to NACE Rev. 2.1 codes. Tokenizes the input, scores by matched terms, and returns the top 5 candidates with a reason. Ideal for AI agents classifying business activities.

Input parameters:

- `activity_description` (string, required): Free-text description of the economic activity to classify

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 69
- 2026-08-01: 21
- 2026-07-31: 28
- 2026-07-29: 46
- 2026-07-28: 26
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/nace-mcp
- Socket report: https://socket.dev/npm/package/nace-mcp
- Repository: https://github.com/DeJo90/nace-mcp
- Changelog RSS feed: https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/dejo90-nace-mcp/nace-mcp