Server data from the Official MCP Registry
Korean market data for agents: tradeable-basis kimchi premium, history/percentiles, translated news.
About
Korean market data for agents: tradeable-basis kimchi premium, history/percentiles, translated news.
Security Report
Valid MCP server (2 strong, 4 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
3 files analyzed · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: K_DATA_PRIVATE_KEY
Environment variable: K_DATA_MAX_SPEND_USD
Environment variable: K_DATA_BASE_URL
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-juh5ng-k-data-mcp": {
"env": {
"K_DATA_BASE_URL": "your-k-data-base-url-here",
"K_DATA_PRIVATE_KEY": "your-k-data-private-key-here",
"K_DATA_MAX_SPEND_USD": "your-k-data-max-spend-usd-here"
},
"args": [
"-y",
"k-data-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
k-data-mcp
MCP server for Korean market data, metered per call in USDC over x402. No account, no API key, no signup — the server pays each request from a wallet you supply.
What you get
- Kimchi premium on a tradeable basis. Everyone quotes the premium against the official USD/KRW rate, but Korean capital controls mean the KRW exit leg actually goes through USDT — so that number is not something you can trade on. This returns both, and they routinely disagree in sign: official can read −0.27% while the realizable basis is +0.19%.
- Premium history and percentile context. A continuously recorded archive answers "is this premium unusual right now?" — percentile, mean, stdev, z-score over 1h–90d. No free source publishes this, and it cannot be reconstructed after the fact.
- Korean headlines translated to English, from Yonhap, Maeil Business and Hankyung. Korean myriad units (억 / 조) are expanded deterministically before translation, so "989억달러" comes back as $98.9 billion rather than the 10×-off answer language models produce unaided.
- Upbit KRW quotes and market summaries, USD/KRW.
Install
npx k-data-mcp
Claude Desktop / Claude Code
{
"mcpServers": {
"k-data": {
"command": "npx",
"args": ["-y", "k-data-mcp"],
"env": {
"K_DATA_PRIVATE_KEY": "0xYOUR_DEDICATED_WALLET_KEY",
"K_DATA_MAX_SPEND_USD": "1"
}
}
}
}
Wallet setup
Each tool call spends real USDC, so the server will not start without a key and a budget.
- Create a dedicated wallet — not your main one. The key sits in a config file and every call spends from it.
- Fund it with the USDC you're willing to spend on Base. No ETH needed: x402 settles with an off-chain EIP-3009 signature and the facilitator pays the gas.
- Set
K_DATA_MAX_SPEND_USD. The server refuses any call that would push cumulative spend past it.
| Variable | Required | Default | Meaning |
|---|---|---|---|
K_DATA_PRIVATE_KEY | yes | — | Private key of the paying wallet (USDC on Base) |
K_DATA_MAX_SPEND_USD | no | 1 | Hard cap on cumulative spend for the session |
K_DATA_BASE_URL | no | hosted service | Point at a different K-Data deployment |
Tools
list_endpoints is free — call it first to see current prices and decide what's worth buying.
| Tool | Price | Returns |
|---|---|---|
list_endpoints | free | Catalog, current prices, wallet address, remaining budget |
kimchi_premium | $0.03 | Dual-basis premium (official + USDT) for up to 10 coins |
kimchi_premium_stats | $0.12 | Percentile, mean, stdev, z-score of the premium over 1h–90d |
kimchi_premium_history | $0.08 | Premium time series, both bases |
korea_market_snapshot | $0.08 | One-call briefing: premium + markets + FX + translated headlines |
news_headlines_en | $0.05 | Korean headlines with English translations |
crypto_krw_markets | $0.01 | All Upbit KRW markets — volume leaders, gainers, losers |
news_headlines | $0.01 | Korean headlines, untranslated |
crypto_krw_ticker | $0.005 | One Upbit KRW quote |
fx_usdkrw | $0.005 | USD/KRW rate |
Prices are read from the provider's catalog at startup, so this table reflects whatever the service currently charges.
How payment works
Every paid endpoint answers an unpaid request with HTTP 402 and a PAYMENT-REQUIRED header describing the price, asset and recipient. This server signs an EIP-3009 authorization for that exact amount and retries; the facilitator settles it on Base. Nothing is held on account — you pay per call, and stop paying when you stop calling.
License
MIT
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