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Korea Company Data

by lichtsalzversion 0.1.2i★ –iComputer or cloud
Registry nameio.github.lichtsalz/korea-data

Install

Overview

Description from the maker (original English)

Korean company identity, registration status and monthly payroll-based employment, in English.

PopNx MCP’s three pillars

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

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: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Other
  • You need to fill in: KCID_API_KEY

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.
  • You fill in yourself: KCID_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • npmNode.js installed (for the npx command)

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://notonlystock.com/korea/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "korea-data": {
      "command": "npx",
      "args": [
        "-y",
        "korea-data-mcp"
      ],
      "env": {
        "KCID_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http korea-data https://notonlystock.com/korea/mcp

Or run it on your computer

claude mcp add korea-data --env KCID_API_KEY=your-value -- npx -y korea-data-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "korea-data": {
      "url": "https://notonlystock.com/korea/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "korea-data": {
      "command": "npx",
      "args": [
        "-y",
        "korea-data-mcp"
      ],
      "env": {
        "KCID_API_KEY": "your-value"
      }
    }
  }
}

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": {
    "korea-data": {
      "type": "http",
      "url": "https://notonlystock.com/korea/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "korea-data": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "korea-data-mcp"
      ],
      "env": {
        "KCID_API_KEY": "your-value"
      }
    }
  }
}

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:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://notonlystock.com/korea/mcp

Menu names can differ slightly by plan and over time.

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

Values you fill in

  • KCID_API_KEY secret required env
    API key from https://notonlystock.com/korea/account — new accounts start with 50 free credits.

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 lichtsalz, 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 Otheri

  • More stars than 0% of the other 32688 servers in this category
  • Published to the registry more recently than 29% of the other 32688 servers in this category
  • Basic checks equal to or better than 100% of the other 32688 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 Korea Company Data 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?

You need to fill in: KCID_API_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.2) reached the registry 2 months 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: Spec Driven Development, Remote Desktop Commander, 御府和田玉 在售作品查询

Alternatives

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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.

Korea Company Data — developer kit

Paused — data available on request. The REST API, the MCP server and sign-up are switched

off for now, so the CLI and MCP server here cannot fetch anything at the moment.

The data is not gone: it can be provided on request. Email

support@notonlystock.com with what you need — which companies

or rail data, which fields, and in what form — or leave a note on the

feedback page.

The data guide and API reference stay up, and existing keys and credits are kept for when the API reopens.

Korean company records in English: identity, registration status, industry, address, and month-by-month employment from government payroll records.

Plus nationwide rail — every subway and commuter-rail stop, route and departure, eleven operators reconciled into one GTFS-shaped dataset.

Three ways in, one API key.

[`korea-data`](cli/)Command line — npx korea-data 124-81-00998 · npx korea-data rail 용산
[`korea-data-mcp`](mcp/)MCP server for agents
[`openapi.yaml`](openapi.yaml)REST API description

Keys are issued at https://dataservice.notonlystock.com/korea/account once the API reopens — 5,000 free credits, no card.

What is in the data

152,367 Korean for-profit corporate headquarters with 10 or more insured employees.

FieldPresent
Employees (Employment Insurance)100%
Address in English100%
Established date100%
Monthly employment series91.9%
Corporate registration number70.5%
Phone69.3%
Listed market · DART code25.5%
Worksite addresses with headcount100% (25.5% have more than one)

Registration numbers are validated against the National Tax Service. Where a value could be read as more than it is, a companion field says what kind of value it is — name_en_class, established_date_source, nps_quality. Which source each field comes from is in the data guide.

Full data guide → · API docs →

What this does not do

No score, no grade, no ranking, no opinion about any company. No sanctions, penalties or litigation history. No personal data. Facts and their sources only.

Stability

The API is v0. Paths, parameters and field names may change without notice until v1. Pin nothing you cannot change.

MIT licensed.

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