Korea Data Suite

Name: Korea Data Suite
Author: choiyounggi

by choiyounggiversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.choiyounggi/korea-data-mcp

Install

Overview

Description from the maker (original English)

Korean public holidays, business-day math, and MOLIT real-estate transactions as MCP tools.

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
UsageiVery new↓ 18/wk · ★ –

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 on your computer
Transport: stdio
Category: Other
You need to fill in: KDS_API_KEY

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: KDS_API_KEY, KDS_API_BASE

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

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

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

{
  "mcpServers": {
    "korea-data": {
      "command": "uvx",
      "args": [
        "korea-data-mcp"
      ],
      "env": {
        "KDS_API_KEY": "your-value",
        "KDS_API_BASE": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add korea-data --env KDS_API_KEY=your-value --env KDS_API_BASE=your-value -- uvx 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": {
      "command": "uvx",
      "args": [
        "korea-data-mcp"
      ],
      "env": {
        "KDS_API_KEY": "your-value",
        "KDS_API_BASE": "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": "stdio",
      "command": "uvx",
      "args": [
        "korea-data-mcp"
      ],
      "env": {
        "KDS_API_KEY": "your-value",
        "KDS_API_BASE": "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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Values you fill in

KDS_API_KEY secret required env
Your Korea Data Suite API key (subscribe on the RapidAPI listing).
KDS_API_BASE env
API origin (default https://api.korea-data.cloud).

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account choiyounggi, 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 18513 servers in this category
Published to the registry more recently than 17% of the other 18513 servers in this category
Basic checks equal to or better than 100% of the other 18513 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 Data Suite 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: KDS_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Cape Winelands Visit Planner

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 Data Suite

English | 한국어

Clean, developer-friendly REST APIs for Korean public data. Korean government open data is powerful but hard to consume — Korean-only docs, XML responses, legacy auth. This suite normalizes it into simple JSON APIs.

▶ [Try it on RapidAPI](https://rapidapi.com/dch0202/api/korea-real-estate-holidays) — free tier, no setup. Hosted and auto-updated; same code as this repo. For AI agents, it's on the MCP Registry — uvx korea-data-mcp.

APIs

API	Status	Description
Holidays & Business Days	✅ v1	Korean public holidays (incl. substitute & temporary holidays) and business-day calculations
Real Estate Transactions	✅ v1	Normalized MOLIT real transaction prices (apartment/officetel/land, sale & rent) — nationwide (261 sigungu)
Address Toolkit	🚧 planned	Road/lot address conversion, romanization
Business Registration	🚧 planned	BRN validation & enrichment

Get started

Hosted (recommended) — a maintained instance with a free tier and no setup:

→ [Subscribe on RapidAPI](https://rapidapi.com/dch0202/api/korea-real-estate-holidays), grab your key, and call any endpoint. RapidAPI injects the key for you — copy a ready-made snippet from its Code Snippets panel.

	RapidAPI (hosted)	Self-host
Setup	API key in seconds	data.go.kr key + server + cron
Data refresh	automatic (we run the sync)	you manage the scheduler
Cost	free tier, then paid	free (your own infra)

Both run the exact same code (this repo). Pick RapidAPI if you'd rather not operate data pipelines; self-host if you want full control.

Self-host

uv sync

uv run uvicorn app.main:app --port 8642 curl "http://127.0.0.1:8642/v1/health"

Holidays & Business Days API

# All holidays in a year (or a month)

curl "http://127.0.0.1:8642/v1/holidays?year=2026" -H "X-API-Key: "

Is a given date a holiday / business day?

curl "http://127.0.0.1:8642/v1/holidays/check?date=2026-03-02" -H "X-API-Key: "

Add N business days (skips weekends & holidays)

curl "http://127.0.0.1:8642/v1/business-days/add?date=2026-12-31&days=1" -H "X-API-Key: "

Count business days in a range (inclusive)

curl "http://127.0.0.1:8642/v1/business-days/count?start=2026-09-21&end=2026-09-27" -H "X-API-Key: "

Covers official public holidays, substitute holidays (대체공휴일), temporary holidays (임시공휴일), and election days — the cases most global holiday APIs get wrong for Korea.

Real Estate Transactions API

Normalized MOLIT (Ministry of Land) real transaction prices — apartment, officetel, and land; sale, jeonse, and monthly-rent — as clean English JSON with cursor pagination.

# Real transaction prices (apartment sales in Gangnam-gu)

curl "http://127.0.0.1:8642/v1/realestate/transactions?region=11680&property_type=apartment&trade_type=sale" -H "X-API-Key: "

Filter by date range + paginate with the returned cursor

curl "http://127.0.0.1:8642/v1/realestate/transactions?region=11680&date_from=2026-01-01&limit=50&cursor= " -H "X-API-Key: "

Region codes (LAWD 5-digit)

curl "http://127.0.0.1:8642/v1/realestate/regions" -H "X-API-Key: "

Daily sync ingests the current + previous month; use the backfill CLI for history:

uv run python scripts/backfill.py --from 2025-01 --to 2025-12 --regions 11680,11650

Configuration

Environment variables (prefix KDS_, .env supported):

Variable	Default	Description
`KDS_DEV_MODE`	`false`	Skip API-key auth (local dev)
`KDS_API_KEYS`	—	Comma-separated accepted API keys
`KDS_PROXY_SECRETS`	—	Comma-separated marketplace proxy secrets
`KDS_DB_PATH`	`data/kds.db`	SQLite path
`KDS_DATA_GO_KR_KEY`	—	data.go.kr service key (optional; enables holiday + real-estate sync)
`KDS_ENABLE_SCHEDULER`	`true`	Holiday (weekly) + real-estate (daily) sync scheduler
`KDS_RE_REGIONS`	all 261 nationwide sigungu	Comma LAWD codes to sync (subset override)
`KDS_RE_DATASETS`	all	Comma dataset keys (apt_trade, apt_rent, offi_trade, offi_rent, land_trade)

Data sources & attribution

Holiday data: KASI Special Day Information (한국천문연구원 특일정보), via Korea Public Data Portal (data.go.kr) — KOGL Type 1. Ships with bundled seed data (2025–2027); refreshed weekly when a service key is configured.
Real transaction data: MOLIT 실거래가 공개시스템 (국토교통부), via Korea Public Data Portal (data.go.kr) — KOGL Type 1.

Run as a daemon (macOS)

# Install & start (auto-restart on crash, start at login)

./scripts/install-daemon.sh

With Cloudflare Tunnel (after one-time `cloudflared tunnel login/create`)

./scripts/install-daemon.sh --with-tunnel

Logs

tail -f ~/Library/Logs/kds/api.out.log

Uninstall

launchctl bootout "gui/$(id -u)" ~/Library/LaunchAgents/com.choiyounggi.kds-api.plist rm ~/Library/LaunchAgents/com.choiyounggi.kds-api.plist

To keep the machine awake for serving, disable system sleep (sudo pmset -a sleep 0) or use a dedicated always-on machine. See deploy/cloudflared.example.yml for exposing the API via Cloudflare Tunnel without opening ports.

Handling concurrent traffic

The read path and the write path are separated so traffic scales independently:

SQLite in WAL mode (set once at init) + busy_timeout — readers never block the daily writer and vice-versa, and multiple read workers can run concurrently.
API process is read-only, multi-worker. scripts/run.sh runs uvicorn with --workers ${KDS_WORKERS:-2} and KDS_ENABLE_SCHEDULER=false. Each worker is a separate process (separate GIL); WAL lets them all read at once. Raise KDS_WORKERS to scale reads with cores.
The daily ingest runs as its own process (com.choiyounggi.kds-sync, 04:00) via scripts/sync.py — never inside the API server, so a multi-thousand-row batch never competes with request handling for the GIL.
Edge caching (optional): responses carry Cache-Control: no-store for security. The real-estate data is public and changes at most daily — if origin load grows, serve it with a short Cache-Control: public, max-age=... and let the CDN absorb reads.

Security checklist before exposing externally

The app is hardened at the code layer (API-key auth fail-closed, parameterized SQL, strict input validation, security headers on every response including 5xx, docs/schema off by default, sanitized errors). The following are edge/deploy responsibilities that must be in place before opening the tunnel:

Never set `KDS_DEV_MODE=true` in production — it disables all auth. The app logs a warning at startup if it is on.
Cloudflare rate limiting + WAF on the tunnel hostname — the app has no app-layer rate limit by design (edge responsibility).
HSTS + TLS are terminated at the Cloudflare edge; confirm HSTS is enabled there (the origin serves plain HTTP on 127.0.0.1 only).
Keep KDS_ENABLE_DOCS unset (or false) in production; set true only to serve /docs /openapi.json at the origin.

SEO marketing site (programmatic)

A static, SEO-optimized marketing site is generated from the live DB by scripts/gen_site.py. For every region that has real transaction data it emits a Korean landing page (the query users actually type — "강남구 아파트 실거래가 API" — backed by real MOLIT stats, a working curl example, and a signup CTA), plus a holidays pillar page, a home page, sitemap.xml, and robots.txt.

Quality gate (important): a region is only published if it has at least MIN_SALE_ROWS (30) apartment-sale rows. Regions without enough data are skipped — this deliberately avoids thin/doorway pages, which search engines penalize.

# generate into site/dist (reads data/kds.db)

uv run python scripts/gen_site.py --out site/dist

Config is env-driven so the same generator works for any domain (put these in deploy/site.env, gitignored — copy deploy/site.env.example):

Env	Meaning
`KDS_SITE_URL`	canonical/sitemap base, e.g. `https://korea-data.cloud`
`KDS_API_ORIGIN`	origin shown in the on-page `curl` examples, e.g. `https://api.korea-data.cloud`
`KDS_CTA_URL`	signup call-to-action (RapidAPI / Zyla / Postman listing)
`KDS_SITE_DIR`	output dir the app serves (default `site/dist`)

Serving — the API app serves it

The FastAPI app serves site/dist at all non-API paths (app.mount("/")), while /v1/* stays the JSON API. The two get different response headers: the API keeps its locked-down default-src 'none' CSP + no-store; the site gets an HTML-renderable CSP (script-src 'none', inline styles allowed) + public cache. Files are read from disk per request, so regenerating the site goes live with no app restart — only a code change needs a restart.

The site is served on the same host as the API (api.korea-data.cloud) — the API lives under /v1, the site everywhere else — so no new tunnel hostname or DNS is needed. One-time on the serving host:

cp deploy/site.env.example deploy/site.env    # KDS_SITE_URL == KDS_API_ORIGIN == https://api.korea-data.cloud

uv run python scripts/gen_site.py --out site/dist # generate once

restart the API app so this integration (new code) takes effect — the site is

then live at https://api.korea-data.cloud/ , /holidays/ , /realestate/... .

Submit https://api.korea-data.cloud/sitemap.xml once in Google Search Console.

Want the site on a bare korea-data.cloud / www later? Add an ingress rule

pointing that hostname at the same http://127.0.0.1:8642, route its DNS, and

switch KDS_SITE_URL to it. Not required — the api host works for SEO today.

First run needs history: the daily sync only ingests the current month. To give

pages real depth, backfill once —

uv run python scripts/backfill.py --from 2025-07 --to 2026-06 --regions --datasets apt_trade,apt_rent.

Automate (macOS daemon)

deploy/com.choiyounggi.kds-site.plist regenerates the site daily at 04:30 (right after the 04:00 sync) via scripts/publish_site.sh. Because the app serves from disk, the refreshed pages are live immediately — no restart, no external deploy:

cp deploy/com.choiyounggi.kds-site.plist ~/Library/LaunchAgents/

launchctl bootstrap "gui/$(id -u)" ~/Library/LaunchAgents/com.choiyounggi.kds-site.plist tail -f ~/Library/Logs/kds/site.out.log

Uptime note: since the site is served by the local app (not a CDN), its SEO

availability tracks the machine — keep it awake for serving (pmset, as the API

already requires). If always-on hosting is wanted later, the same site/dist can

be pushed to Cloudflare Pages instead.

MCP server (AI-agent access)

The API is also packaged as a standalone Model Context Protocol server — packages/korea-data-mcp/ — so AI agents (Claude Desktop/Code, Cursor, …) can discover and call the endpoints directly. It is its own minimal package (deps: mcp, httpx) and is what gets published to PyPI / listed in the MCP Registry.

Quick add (before PyPI, straight from this repo — users bring their own key):

claude mcp add korea-data-suite --env KDS_API_KEY=<key> \

-- uvx --from "git+https://github.com/choiyounggi/korea-data-suite#subdirectory=packages/korea-data-mcp" korea-data-mcp

See packages/korea-data-mcp/README.md for tools, client config, and uvx korea-data-mcp (once on PyPI).

Korea Data Suite

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Cape Winelands Visit Planner

README from the maker

Korea Data Suite

APIs

Get started

Self-host

Holidays & Business Days API

Is a given date a holiday / business day?

Add N business days (skips weekends & holidays)

Count business days in a range (inclusive)

Real Estate Transactions API

Filter by date range + paginate with the returned cursor

Region codes (LAWD 5-digit)

Configuration

Data sources & attribution

Run as a daemon (macOS)

With Cloudflare Tunnel (after one-time cloudflared tunnel login/create)

Logs

Uninstall

Handling concurrent traffic

Security checklist before exposing externally

SEO marketing site (programmatic)

Serving — the API app serves it

restart the API app so this integration (new code) takes effect — the site is

then live at https://api.korea-data.cloud/ , /holidays/ , /realestate/... .

Automate (macOS daemon)

MCP server (AI-agent access)

License

With Cloudflare Tunnel (after one-time `cloudflared tunnel login/create`)