# Seoul Data (npm · @pipeworx/mcp-seoul-data)

Seoul Open Data MCP — city data for Seoul via the Seoul Open Data Plaza API (openapi.seoul.go.kr).…

- Trust score: 84/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-06

## Components

- remote · `gateway.pipeworx.io`: 70/100, [markdown](https://verifymcp.io/servers/pipeworx-io-seoul-data/seoul-data-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-seoul-data/seoul-data-mcp)
- npm · `@pipeworx/mcp-seoul-data`: 84/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data.md), [page](https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-seoul-data`
- Version: `0.2.1`
- 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 2026-11-06.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-seoul-data).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 648 tokens (~162/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 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 Seoul Data MCP server?

Seoul Data runs locally as an npm package, launched with npx -y @pipeworx/mcp-seoul-data. 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 pipeworx-io-seoul-data -- npx -y @pipeworx/mcp-seoul-data
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-seoul-data": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-seoul-data"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-seoul-data": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-seoul-data"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-seoul-data -- npx -y @pipeworx/mcp-seoul-data
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-seoul-data": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-seoul-data"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-seoul-data --command npx --arg -y --arg @pipeworx/mcp-seoul-data
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-seoul-data:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-seoul-data"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-seoul-data": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-seoul-data"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-seoul-data -t stdio -c npx -a -y @pipeworx/mcp-seoul-data
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-seoul-data": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-seoul-data"
      ]
    }
  }
}
```

## 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.

### 2026-11-06 (score 84, +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.

### 2026-11-05 (score 83, +3)

- [security regression] Tool safety: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional improvement] Stability: unverified → 0.23
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-30 (score 80, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-29 (score 80)

First indexed and scored.

## MCP tools (4)

### `seoul_real_estate` (~262 tokens)

Seoul property/apartment SALE transactions (실거래가) from the official registry. PREFER for "apartment prices in <Seoul district>", "recent Seoul real-estate sales", "what did <building> sell for". Optionally filter by year and district code. Returns building name, neighborhood (dong), sale price (KRW), floor area (m²), floor, and contract date. Common district codes: 11680=Gangnam, 11650=Seocho, 11710=Songpa, 11110=Jongno, 11140=Jung, 11170=Yongsan, 11440=Mapo, 11200=Seongdong, 11560=Yeongdeungpo, 11620=Gwanak, 11590=Dongjak, 11350=Nowon.

Input parameters:

- `district_code` (string): 5-digit Seoul district code, e.g. "11680" (Gangnam) (optional).
- `limit` (number): Max transactions (default 5; sample key caps at 5, real key up to 1000).
- `year` (number): Contract year, e.g. 2026 (optional).

### `seoul_air_quality` (~85 tokens)

Real-time air quality across Seoul districts (자치구) — PM10, PM2.5, ozone, NO2, CO, SO2, the comprehensive air index (CAI), and its grade (좋음/Good … 나쁨/Bad). Use for "air quality in Seoul / <district>", "Seoul PM2.5 right now".

### `seoul_events` (~86 tokens)

Seoul cultural events — exhibitions, concerts, festivals, performances — with title, category, district, date, venue, target audience, and fee. Use for "cultural events in Seoul", "what's on in <Seoul district>".

Input parameters:

- `limit` (number): Max events (default 5; sample key caps at 5, real key up to 1000).

### `seoul_dataset` (~161 tokens)

Generic passthrough to ANY Seoul Open Data Plaza service by its service name (서비스명) — returns the raw rows. Use when a specific Seoul dataset is needed that the named tools don't cover (e.g. "CardSubwayStatsNew" subway ridership, "GetParkingInfo" parking, "tbCycleStationInfo" bike stations, "SPOP_LOCAL_RESD_DONG" population). Browse services at data.seoul.go.kr.

Input parameters:

- `end` (number): End row (default 5; sample key caps at 5).
- `service` (string, required): Seoul Open Data service name, e.g. "GetParkingInfo", "tbCycleStationInfo".
- `start` (number): Start row (1-based, default 1).

## Diagnostics

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

## Score history

- 2026-11-06: 84
- 2026-11-05: 83
- 2026-11-04: 80
- 2026-11-03: 80
- 2026-11-02: 80
- 2026-11-01: 80
- 2026-10-31: 80
- 2026-10-30: 80
- 2026-10-29: 80

## Common questions

### What is the Seoul Data MCP server?

Seoul Data is an MCP server listed in the public MCP registry as io.github.pipeworx-io/seoul-data. Seoul Open Data MCP, city data for Seoul via the Seoul Open Data Plaza API (openapi.seoul.go.kr).… This page covers its npm package (@pipeworx/mcp-seoul-data).

### Is the Seoul Data MCP server safe to use?

Seoul Data scores 84 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 6 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Seoul Data MCP server expose?

Seoul Data exposes 4 tools: seoul_real_estate, seoul_air_quality, seoul_events, seoul_dataset. Their descriptions and schemas cost roughly 594 tokens of context every time the server is loaded.

### Is the Seoul Data MCP server still maintained?

Seoul Data is still listed as active in the MCP registry. We last reached this channel on 6 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Seoul Data MCP server under?

Seoul Data declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the Seoul Data MCP server?

VerifyMCP ran 16 checks on Seoul Data, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-seoul-data
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-seoul-data
- Repository: https://github.com/pipeworx-io/mcp-seoul-data
- Website: https://pipeworx.io/packs/seoul-data
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-seoul-data/pipeworx-mcp-seoul-data