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Upbit Kimchi Premium Data
x402
Upbit Kimchi Premium Data is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-11-02).
Returns the kimchi premium (price gap between Korean Upbit and global exchanges) for BTC, ETH, or other specified crypto symbols, including KRW/USD FX rates and USDT-based premium percentages.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.
Output
Returns a JSON object with an `assets` array containing each symbol's Upbit KRW price, global USD price, FX-adjusted premium percentage, and USDT-based premium percentage. Also includes the current USD/KRW rate, the Upbit USDT/KRW implied rate, the data sources used, and a timestamp of when the data was last updated.
Example use cases
Kimchi arbitrage opportunity scanner
“Check the kimchi premium for BTC and ETH right now and tell me if either is above 1.5% — I'm looking for potential arbitrage between Korean and global crypto markets.”
Korean market sentiment gauge
“What's the current kimchi premium for Bitcoin? A high premium usually signals strong Korean retail demand, so I want to track it as a sentiment indicator.”
FX-adjusted crypto price comparison
“Pull the latest Upbit price for ETH in KRW and show me how it compares to the global USD price after adjusting for the current exchange rate.”
Technical details
Endpoint
GEThttps://kr-x402-mvp.kgy5612.workers.dev/api/upbit/kimchi-premium?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time kimchi premium data (Korean crypto market price premium) for BTC, ETH, or other tokens available on Upbit, particularly when building arbitrage scanners, market sentiment dashboards, or cross-exchange price comparison tools. It requires no API key and is paid micro-per-call via x402/USDC on Base, making it ideal for AI agents that need on-demand access without subscription overhead.
Side effects
- Upstream exchange API unavailability (Upbit, Coinbase, Kraken, Bitstamp) may cause stale or missing data
- FX rate provider (open.er-api.com) downtime may affect premium calculations
- Invalid or unsupported symbol in the `symbols` query param may return empty assets array
- Payment failure via x402/USDC on Base will block the request before data is returned
- Worker cold-start or rate-limiting on Cloudflare may cause intermittent latency spikes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"assets": [
{
"symbol": "BTC",
"upbit_krw": 108533000,
"global_usd": 80867.7,
"premium_pct_fx": 1.15,
"premium_pct_usdt": 0.16
},
{
"symbol": "ETH",
"upbit_krw": 3162000,
"global_usd": 2356.1,
"premium_pct_fx": 1.15,
"premium_pct_usdt": 0.15
}
],
"usdkrw": 1326.8,
"sources": [
"https://api.upbit.com",
"https://api.exchange.coinbase.com",
"https://api.kraken.com",
"https://www.bitstamp.net",
"https://open.er-api.com"
],
"updated_at": "2026-10-28T03:00:00Z",
"upbit_usdt_krw": 1340
}
}Tags
x402
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