K-Data — Korean Sell-Side Research & Market Data
REMOTE · K-DATA-X402-PRODUCTION.THEBLACK1022.WORKERS.DEV · 2 COMPONENTS · SCANNED SEP 26
Korean equity research, analyst revisions, kimchi premium and news via x402.
Available components
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. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- 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. See how to fix → View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management46
- Stability check failed: schema churn in the 20 days we've observed: 3 tool removals, 0 breaking changes, 0 auth/transport breaks, 0 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
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.
remote · k-data-x402-production.theblack1022.workers.dev
claude mcp add --transport http juh5ng-korea-stock-research-mcp 'https://k-data-x402-production.theblack1022.workers.dev/mcp'
{
"mcpServers": {
"juh5ng-korea-stock-research-mcp": {
"url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
}
}
} {
"servers": {
"juh5ng-korea-stock-research-mcp": {
"type": "http",
"url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
}
}
} [mcp_servers.juh5ng-korea-stock-research-mcp] url = "https://k-data-x402-production.theblack1022.workers.dev/mcp"
{
"$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 mcp add juh5ng-korea-stock-research-mcp --url 'https://k-data-x402-production.theblack1022.workers.dev/mcp' --transport streamable-http
mcp_servers:
juh5ng-korea-stock-research-mcp:
url: "https://k-data-x402-production.theblack1022.workers.dev/mcp" {
"McpServers": {
"juh5ng-korea-stock-research-mcp": {
"Transport": "http",
"Url": "https://k-data-x402-production.theblack1022.workers.dev/mcp"
}
}
} assistant mcp add juh5ng-korea-stock-research-mcp -t streamable-http -u 'https://k-data-x402-production.theblack1022.workers.dev/mcp'
{
"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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 23 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 32 to 36.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 26 to 29.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 16 to 19.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 9 to 12.
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 2 to 6.
- 7 Sept 26 0
- Stability: unverified → fail ▼ security
- A breaking change shipped without a version bump: still 1.1.0 ▼ security
- Tool “preview_kimchi_premium” was removed ▼ security
- Tool “preview_research” was removed ▼ security
- 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 security
- Schema quality: 1678 → 1461 ▲ functional
- “kimchi_premium_history” dropped the optional parameter “before” cosmetic
- 6 Sept 26 59
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 26 Sept 2026 · Probed https://k-data-x402-production.theblack1022.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=theblack1022.workers.dev | CN=WE1,O=Google Trust Services,C=US | 1 Aug 2026 | 30 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | 6a270db5fa7b729713239d9ff9b014ec |
| SANs: theblack1022.workers.dev, *.theblack1022.workers.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of k-data-x402-production.theblack1022.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://k-data-x402-production.theblack1022.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://k-data-x402-production.theblack1022.workers.dev/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
crypto_krw_markets ~90
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | How many top-volume markets to return (default 30, max 100) |
No output schema declared.
No examples provided.
crypto_krw_ticker ~88
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.
| Name | Type | Req | Description |
|---|---|---|---|
| ticker | string | yes | Coin ticker symbol, e.g. BTC |
No output schema declared.
No examples provided.
fx_usdkrw ~46
Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com). Costs $0.005 in USDC per call, settled via x402.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
kimchi_premium ~137
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.
| Name | Type | Req | Description |
|---|---|---|---|
| symbols | string | – | Comma-separated coin tickers, e.g. BTC,ETH,XRP. Default: BTC,ETH,XRP,SOL,DOGE |
No output schema declared.
No examples provided.
kimchi_premium_history ~148
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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) |
No output schema declared.
No examples provided.
kimchi_premium_stats ~177
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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) |
No output schema declared.
No examples provided.
korea_market_snapshot ~68
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
news_headlines ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Filter by category |
| limit | integer | – | Max items (default 30, max 100) |
No output schema declared.
No examples provided.
news_headlines_en ~123
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.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Filter by category |
| limit | integer | – | Max items (default 20, max 50) |
No output schema declared.
No examples provided.
research_company_ticker ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max reports (default 20, max 50) |
| ticker | string | yes | 6-digit KRX code, e.g. 005930 |
No output schema declared.
No examples provided.
research_consensus_ticker ~155
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.
| Name | Type | Req | Description |
|---|---|---|---|
| ticker | string | yes | 6-digit KRX code, e.g. 005930 |
| window | string | – | Lookback window (default 90d) |
No output schema declared.
No examples provided.
research_latest ~109
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max reports (default 20, max 50) |
No output schema declared.
No examples provided.
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.