International Classifications MCP

Name: International Classifications MCP
Author: lbruce-wq

by lbruce-wqversion 0.5.2i★ –iRuns in the cloud

Registry nameio.github.lbruce-wq/international-classifications

Install

Overview

Description from the maker (original English)

Deterministic MCP for statistical classifications and survey codelists with provenance.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Docs, sheets & office work

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://classifications.impactengines.ai/mcp

Run this in your terminal

claude mcp add --transport http international-classifications https://classifications.impactengines.ai/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "international-classifications": {
      "url": "https://classifications.impactengines.ai/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://classifications.impactengines.ai/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account lbruce-wq, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 3527 servers in this category
Published to the registry more recently than 46% of the other 3527 servers in this category
Basic checks equal to or better than 100% of the other 3527 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is International Classifications MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.5.2) reached the registry 37 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Agent-Native Calendar

by BuilderIO

Agent-Native Google Calendar - manage events, sync, and public booking

Runs in the cloud★ 7,620MITUpdated 2 months ago

Install

Excel MCP Server

by haris-musa

Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.

Runs on your computer★ 4,276MITUpdated 7 days ago

Install

MCP Server for Excel

by sbroenne

Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

Runs on your computer★ 847MITUpdated 4 days ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

International Classifications MCP

A free, open-source, deterministic MCP server for discovering, explaining, validating and mapping official international statistical classifications.

It is designed for questionnaire development, survey coding, statistical harmonisation and reproducible analysis. No LLM, embedding service or paid AI runs inside the server. The connected AI client interprets the user's task; this service provides versioned official structures, deterministic retrieval and provenance.

Coverage (v0.5.2)

Production safeguards include first-class typed codelist hierarchy nodes, deterministic routing fixtures for every curated codelist, weekly authoritative-link checks, per-tool request IDs and latency logging, and documented OpenAI directory annotation justifications.

The registry includes full machine-readable structures for ISIC Rev.5, CPC 3.0, COICOP 2018, HS 2022, SITC Rev.4, BEC Rev.5 and UN M49; a complete ISCO-08 code/title hierarchy; the official ISIC Rev.4 to Rev.5 correspondence; operational ICSE-18, ICSaW-18 and ISCED structures; detailed ISCED-F and ICCS structures; and clearly labelled reference-only entries for ICD-11 and ICF.

MICS7 is represented only by curated, question-specific response codelists for matching questionnaire answer categories. MICS modules and analytical indicator definitions are intentionally not exposed as classifications; indicator discovery belongs in a development-indicators service. The response layer does not replace UNICEF's current questionnaires or country customisation guidance and never silently combines MICS rounds.

Version 0.5 adds ICC 1.1, ICATUS 2016, COFOG, COPNI, COPP, UNECE Recommendation 20 units and Recommendation 21 package types; detailed ISCED-F and ICCS titles; expanded ICSE/ICSaW and SDMX cores; and separately versioned DHS-8, Washington Group, JMP WASH, WHO vaccination and FAO WCA questionnaire codelists.

Each curated answer list has a stable codelist_id. Call list_codelists, then pass one identifier to search or export. The server refuses to merge unrelated MICS choices into one questionnaire list.

National census and administrative geography codes are intentionally out of scope because they change frequently and lack one authoritative global registry.

Coverage is explicit in list_classifications: full, seed, mapping, reference, or curated. Reference-only and curated families are never presented as complete code lists.

Tools

list_classifications
get_classification
list_codelists
recommend_classifications
search_codes
get_code_definition
browse_hierarchy
validate_codes
map_codes
export_choice_list

Connect

codex mcp add international-classifications --url https://classifications.impactengines.ai/mcp

The root URL provides service status; /mcp is the MCP endpoint.

Local development

python -m pip install -e ".[dev]"

python -m international_classifications_mcp.build_registry pytest classifications-mcp

For HTTP transport:

MCP_TRANSPORT=streamable-http MCP_HOST=0.0.0.0 classifications-mcp

Build philosophy

Official custodians remain authoritative.
Source files are hashed and registry releases are versioned.
Search is programmatic: FTS5, curated concept rules and explicit scoring.
Correspondences preserve one-to-many and changed-definition warnings.
Detailed occupations, industries, diseases and crimes are normally post-coded, not dumped into respondent-facing questionnaires.
Source content remains subject to its custodian's terms; the MIT licence covers this software, not third-party classification content.

See source audit and agent test prompts.

Documentation

Architecture
Source and coverage audit
Deployment
Production operations
OpenAI directory submission evidence
Contributing and security policy

International Classifications MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

International Classifications MCP

Coverage (v0.5.2)

Tools

Connect

Local development

Build philosophy

Documentation