# K-Data — Korean Sell-Side Research & Market Data (remote · k-data-x402-production.theblack1022.workers.dev)

Korean equity research, analyst revisions, kimchi premium and news via x402.

- Trust score: 65/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-26

## Components

- remote · `k-data-x402-production.theblack1022.workers.dev`: 65/100 (this document), [markdown](https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production.md), [page](https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production)
- npm · `k-data-mcp`: 49/100, [markdown](https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-mcp.md), [page](https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-mcp)

## Channel facts

- Endpoint: `https://k-data-x402-production.theblack1022.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.0`

## 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 2026-09-26.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, 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**: 78/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1461 tokens (~121/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 46/100
  - Stability check failed: schema churn in the 20 days we've observed: 3 tool removals, 0 breaking changes, 0 auth/transport breaks, 0 additions.
- **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 12 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the K-Data — Korean Sell-Side Research & Market Data MCP server?

K-Data — Korean Sell-Side Research & Market Data is a hosted endpoint at https://k-data-x402-production.theblack1022.workers.dev/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 juh5ng-korea-stock-research-mcp 'https://k-data-x402-production.theblack1022.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "juh5ng-korea-stock-research-mcp": {
      "url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "juh5ng-korea-stock-research-mcp": {
      "type": "http",
      "url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.juh5ng-korea-stock-research-mcp]
url = "https://k-data-x402-production.theblack1022.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "juh5ng-korea-stock-research-mcp": {
      "type": "remote",
      "url": "https://k-data-x402-production.theblack1022.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add juh5ng-korea-stock-research-mcp --url 'https://k-data-x402-production.theblack1022.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  juh5ng-korea-stock-research-mcp:
    url: "https://k-data-x402-production.theblack1022.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "juh5ng-korea-stock-research-mcp": {
      "Transport": "http",
      "Url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add juh5ng-korea-stock-research-mcp -t streamable-http -u 'https://k-data-x402-production.theblack1022.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "juh5ng-korea-stock-research-mcp": {
      "type": "http",
      "url": "https://k-data-x402-production.theblack1022.workers.dev/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.

### 2026-09-25 (score 65, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-23 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 32 to 36.

### 2026-09-21 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 26 to 29.

### 2026-09-18 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 16 to 19.

### 2026-09-16 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 9 to 12.

### 2026-09-14 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 2 to 6.

### 2026-09-07 (score 59, 0)

- [security regression] Stability: unverified → fail
- [security regression] A breaking change shipped without a version bump: still 1.1.0
- [security regression] Tool “preview_kimchi_premium” was removed
- [security regression] Tool “preview_research” was removed
- [security regression] Tool “preview_research_coverage” was removed
- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “kimchi_premium_history” rewrote its description, which is the text the model reads
- [functional improvement] Schema quality: 1678 → 1461
- [cosmetic] “kimchi_premium_history” dropped the optional parameter “before”

### 2026-09-06 (score 59)

First indexed and scored.

## MCP tools (12)

### `kimchi_premium` (~137 tokens)

Kimchi premium on two bases: premium_official_pct (official USD/KRW rate — the quoted figure) and premium_usdt_pct (Upbit KRW/USDT rate — the margin actually realizable, since the KRW exit leg goes through USDT rather than banks). The two frequently disagree in sign. Optional ?symbols=BTC,ETH (max 10). Costs $0.03 in USDC per call, settled via x402.

Input parameters:

- `symbols` (string): Comma-separated coin tickers, e.g. BTC,ETH,XRP. Default: BTC,ETH,XRP,SOL,DOGE

### `kimchi_premium_stats` (~177 tokens)

Where the current kimchi premium sits inside its own recent distribution: percentile, mean, stdev, z-score, min/max/median, and a plain-language read. Answers 'is this premium unusual right now?' in one call. Built from a continuous archive that cannot be reconstructed from any free source. Params: ?symbol=BTC &window=1h|6h|24h|7d|30d|90d &basis=usdt|official. Costs $0.12 in USDC per call, settled via x402.

Input parameters:

- `basis` (string): Which premium basis to analyse (default usdt)
- `symbol` (string): Archived tickers: BTC, ETH, XRP, SOL, DOGE, USDT
- `window` (string): Lookback window (default 24h)

### `kimchi_premium_history` (~148 tokens)

Time series of the kimchi premium from the continuous archive, both bases, newest-last. Params: ?symbol=BTC &window=1h|6h|24h|7d|30d|90d &points=500 (max 2000). Archive depth is reported as first_recorded. Costs $0.08 in USDC per call, settled via x402.

Input parameters:

- `points` (integer): Max points returned (default 500, max 2000)
- `symbol` (string): Archived tickers: BTC, ETH, XRP, SOL, DOGE, USDT
- `window` (string): Lookback window (default 24h)

### `research_consensus_ticker` (~155 tokens)

Analyst consensus for one KRX ticker, built from the archived research history: mean/median/min/max target price across brokerages, the spread between them, the rating distribution, and a revision log of every target-price and rating change each house has made. Consensus uses each house's latest view, so a weekly publisher does not outvote a quarterly one. Params: ?window=30d|90d|180d|365d (default 90d). Costs $0.12 in USDC per call, settled via x402.

Input parameters:

- `ticker` (string, required): 6-digit KRX code, e.g. 005930
- `window` (string): Lookback window (default 90d)

### `research_company_ticker` (~112 tokens)

Every archived Korean brokerage report for one KRX ticker, newest first: target price, rating, brokerage, analyst, the Korean title with its English translation, and a one-line English summary. Params: ?limit=20 (max 50). Costs $0.05 in USDC per call, settled via x402.

Input parameters:

- `limit` (integer): Max reports (default 20, max 50)
- `ticker` (string, required): 6-digit KRX code, e.g. 005930

### `research_latest` (~109 tokens)

Latest Korean brokerage equity research across all covered companies, newest first — company and KRX ticker, target price, rating, brokerage, analyst, and a one-line English summary of each report. Facts and summaries only; the report PDF stays with its publisher and source_url links back to it. Optional ?limit=20 (max 50). Costs $0.02 in USDC per call, settled via x402.

Input parameters:

- `limit` (integer): Max reports (default 20, max 50)

### `news_headlines_en` (~123 tokens)

Latest Korean headlines with English translations attached (title_en), from Yonhap, Maeil Business and Hankyung — deduplicated, newest first. Use this instead of the Korean-only route when the consuming agent does not read Korean. Optional ?category=top|economy|tech|politics and ?limit=20 (max 50). Costs $0.05 in USDC per call, settled via x402.

Input parameters:

- `category` (string): Filter by category
- `limit` (integer): Max items (default 20, max 50)

### `korea_market_snapshot` (~68 tokens)

One-call Korea briefing: dual-basis kimchi premium + top Upbit KRW markets + USD/KRW + latest economy headlines translated to English. Everything needed for a Korea market read in a single paid request. Costs $0.08 in USDC per call, settled via x402.

### `crypto_krw_markets` (~90 tokens)

Snapshot of all Upbit KRW crypto markets: top by 24h traded value, top gainers, top losers. Optional ?limit=30 (max 100) for the volume ranking. Costs $0.01 in USDC per call, settled via x402.

Input parameters:

- `limit` (integer): How many top-volume markets to return (default 30, max 100)

### `news_headlines` (~112 tokens)

Latest Korean headlines from Yonhap, Maeil Business and Hankyung, deduplicated and newest-first. Titles stay in Korean — use /api/news/headlines/en for English. Optional ?category=top|economy|tech|politics and ?limit=30 (max 100). Costs $0.01 in USDC per call, settled via x402.

Input parameters:

- `category` (string): Filter by category
- `limit` (integer): Max items (default 30, max 100)

### `crypto_krw_ticker` (~88 tokens)

Live quote for one Upbit KRW market by ticker symbol (e.g. BTC, ETH, XRP): price, 24h change, 24h high/low, 24h traded value in KRW. Costs $0.005 in USDC per call, settled via x402.

Input parameters:

- `ticker` (string, required): Coin ticker symbol, e.g. BTC

### `fx_usdkrw` (~46 tokens)

Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com). Costs $0.005 in USDC per call, settled via x402.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production#diagnostics

## Score history

- 2026-09-26: 65
- 2026-09-25: 65
- 2026-09-24: 64
- 2026-09-23: 64
- 2026-09-22: 63
- 2026-09-21: 63
- 2026-09-20: 62
- 2026-09-19: 62
- 2026-09-18: 62
- 2026-09-17: 61
- 2026-09-16: 61
- 2026-09-15: 60
- 2026-09-14: 60
- 2026-09-13: 59
- 2026-09-12: 59
- 2026-09-11: 59
- 2026-09-10: 59
- 2026-09-09: 59
- 2026-09-08: 59
- 2026-09-07: 59
- 2026-09-06: 59

## Common questions

### What is the K-Data — Korean Sell-Side Research & Market Data MCP server?

K-Data — Korean Sell-Side Research & Market Data is an MCP server listed in the public MCP registry as io.github.juh5ng/korea-stock-research-mcp. Korean equity research, analyst revisions, kimchi premium and news via x402. This page covers its hosted endpoint (https://k-data-x402-production.theblack1022.workers.dev/mcp).

### Is the K-Data — Korean Sell-Side Research & Market Data MCP server safe to use?

K-Data — Korean Sell-Side Research & Market Data scores 65 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 K-Data — Korean Sell-Side Research & Market Data MCP server expose?

K-Data — Korean Sell-Side Research & Market Data exposes 12 tools: kimchi_premium, kimchi_premium_stats, kimchi_premium_history, research_consensus_ticker, research_company_ticker, and 7 more. Their descriptions and schemas cost roughly 1,365 tokens of context every time the server is loaded.

### Does the K-Data — Korean Sell-Side Research & Market Data MCP server require authentication?

No. We connected to K-Data — Korean Sell-Side Research & Market Data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the K-Data — Korean Sell-Side Research & Market Data MCP server still maintained?

K-Data — Korean Sell-Side Research & Market Data is still listed as active in the MCP registry. We last reached this channel on 26 September 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://k-data-x402-production.theblack1022.workers.dev/mcp
- Repository: https://github.com/juh5ng/k-data-mcp
- Website: https://k-data-x402-production.theblack1022.workers.dev/
- Changelog RSS feed: https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production.xml
- Changelog JSON feed: https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production.json
- HTML version of this page: https://verifymcp.io/servers/juh5ng-korea-stock-research-mcp/k-data-x402-production