# International Classifications MCP (remote · classifications.impactengines.ai)

Deterministic MCP for statistical classifications and survey codelists with provenance.

- Trust score: 64/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-02

## Components

- remote · `classifications.impactengines.ai`: 64/100 (this document), [markdown](https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications.md), [page](https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications)

## Channel facts

- Endpoint: `https://classifications.impactengines.ai/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.5.2`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-10-02.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 729 tokens (~72/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 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 International Classifications MCP server?

International Classifications MCP is a hosted endpoint at https://classifications.impactengines.ai/mcp, so there is nothing to install locally. 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 --transport http lbruce-wq-international-classifications 'https://classifications.impactengines.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "lbruce-wq-international-classifications": {
      "url": "https://classifications.impactengines.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "lbruce-wq-international-classifications": {
      "type": "http",
      "url": "https://classifications.impactengines.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.lbruce-wq-international-classifications]
url = "https://classifications.impactengines.ai/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "lbruce-wq-international-classifications": {
      "type": "remote",
      "url": "https://classifications.impactengines.ai/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add lbruce-wq-international-classifications --url 'https://classifications.impactengines.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  lbruce-wq-international-classifications:
    url: "https://classifications.impactengines.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "lbruce-wq-international-classifications": {
      "Transport": "http",
      "Url": "https://classifications.impactengines.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add lbruce-wq-international-classifications -t streamable-http -u 'https://classifications.impactengines.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "lbruce-wq-international-classifications": {
      "type": "http",
      "url": "https://classifications.impactengines.ai/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-10-02 (score 64, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-01 (score 63)

First indexed and scored.

## MCP tools (10)

### `list_classifications` (~42 tokens)

List classifications

List classification families, versions, custodians, coverage and licensing notes. Start here when the correct standard is unknown.

Input parameters:

- `domain`
- `status`

Output parameters:

- `result` (array)

### `get_classification` (~32 tokens)

Get classification metadata

Get authoritative metadata and coverage for one classification_id returned by list_classifications.

Input parameters:

- `classification_id` (string, required)

Output parameters:

- `acronym` (string)
- `code_count` (integer)
- `coverage` (string)
- `custodian` (string)
- `description` (string)
- `domain` (string)
- `id` (string)
- `licence_note` (string)
- `name` (string)
- `source_url` (string)
- `status` (string)
- `version` (string)

### `list_codelists` (~32 tokens)

List codelists

List independent option lists within a classification before searching or exporting one list.

Input parameters:

- `classification_id` (string, required)

Output parameters:

- `result` (array)

### `recommend_classifications` (~69 tokens)

Recommend classifications

Return a deterministic ranked shortlist of all relevant classification concepts and codelists. Ranking supports user choice; it is not an automatic selection. Include answer options and context.

Input parameters:

- `answer_options`
- `limit` (integer)
- `question_text` (string, required)
- `survey_context`

Output parameters:

- `next_action` (string)
- `recommendations` (array)
- `warnings` (array)

### `search_codes` (~59 tokens)

Search classification codes

Full-text search labels and notes. Results restrict to one option list only when codelist_id is explicitly supplied.

Input parameters:

- `classification_ids`
- `codelist_id`
- `limit` (integer)
- `query` (string, required)

Output parameters:

- `query` (string)
- `results` (array)
- `total` (integer)
- `warnings` (array)

### `get_code_definition` (~45 tokens)

Get code definition

Retrieve one exact code or codelist container, including its node_kind, hierarchy position and explanatory notes.

Input parameters:

- `classification_id` (string, required)
- `code` (string, required)

Output parameters:

- `classification_id` (string)
- `classification_version`
- `code` (string)
- `codelist_id`
- `definition`
- `excludes`
- `includes`
- `label` (string)
- `language` (string)
- `level`
- `node_kind` (string)
- `parent_code`
- `score`
- `source_title`
- `source_url`

### `browse_hierarchy` (~62 tokens)

Browse classification hierarchy

Browse top-level nodes or immediate children. Curated families return node_kind=codelist containers at root; pass that code as parent_code to browse its options.

Input parameters:

- `classification_id` (string, required)
- `limit` (integer)
- `parent_code`

Output parameters:

- `result` (array)

### `validate_codes` (~32 tokens)

Validate classification codes

Validate exact codes against one named classification version.

Input parameters:

- `classification_id` (string, required)
- `codes` (array, required)

Output parameters:

- `classification_id` (string)
- `invalid_count` (integer)
- `results` (array)
- `valid_count` (integer)

### `map_codes` (~61 tokens)

Map codes between versions

Apply official stored correspondences and expose splits, merges, changed meanings and unmapped codes. Never assume one-to-one equivalence.

Input parameters:

- `codes` (array, required)
- `source_classification_id` (string, required)
- `target_classification_id` (string, required)

Output parameters:

- `results` (array)
- `source_classification` (string)
- `sources` (array)
- `target_classification` (string)
- `warnings` (array)

### `export_choice_list` (~71 tokens)

Export a choice list

Return a structured choice list at a selected hierarchy level. MICS exports require one codelist_id and never merge unrelated answer lists.

Input parameters:

- `classification_id` (string, required)
- `codelist_id`
- `format` (string)
- `level`
- `limit` (integer)

Output parameters:

- `classification_id` (string)
- `codelist_id`
- `codelist_title`
- `format` (string)
- `level`
- `option_count` (integer)
- `rows` (array)
- `warning`

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications#diagnostics

## Score history

- 2026-10-02: 64
- 2026-10-01: 63

## Common questions

### What is the International Classifications MCP server?

International Classifications MCP is listed in the public MCP registry as io.github.lbruce-wq/international-classifications. Deterministic MCP for statistical classifications and survey codelists with provenance. This page covers its hosted endpoint (https://classifications.impactengines.ai/mcp).

### Is the International Classifications MCP server safe to use?

International Classifications MCP scores 64 out of 100 on VerifyMCP. 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 International Classifications MCP server expose?

International Classifications MCP exposes 10 tools: list_classifications, get_classification, list_codelists, recommend_classifications, search_codes, and 5 more. Their descriptions and schemas cost roughly 505 tokens of context every time the server is loaded.

### Does the International Classifications MCP server require authentication?

No. We connected to International Classifications MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the International Classifications MCP server still maintained?

International Classifications MCP is still listed as active in the MCP registry. We last reached this channel on 2 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://classifications.impactengines.ai/mcp
- Repository: https://github.com/lbruce-wq/international-classifications-mcp
- Changelog RSS feed: https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications.xml
- Changelog JSON feed: https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications.json
- HTML version of this page: https://verifymcp.io/servers/lbruce-wq-international-classifications/classifications