# Saylor Innovations Kimchi Premium

> Saylor Innovations Kimchi Premium is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Returns the Kimchi premium percentage for a crypto asset — the price gap between Upbit KRW price and the global USD price, adjusted for live USDT/USD rate, with implied KRW/USD and 24h change

## Facts

- Endpoint: GET https://saylorinnovations.com/api/crypto/korea/kimchi-premium?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-kimchi-premium-960c8a57
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MChoN4ILPqYef0_OZkS4Z

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-kimchi-premium-960c8a57
```

Example prompt: What's the current kimchi premium for ETH — show me the Upbit KRW price, the global USD reference, and the implied KRW/USD rate?

## When to prefer this

Use this endpoint when you need the real-time Kimchi premium — the price differential between South Korea's Upbit exchange and global markets — for a specific cryptocurrency. It is the right choice when you need the premium pre-calculated as a percentage with USDT/USD adjustment already applied, implied KRW/USD derived from crypto prices, and 24h change context in a single call. Prefer this over raw exchange APIs when the goal is arbitrage monitoring, Korean market sentiment analysis, or tracking implied FX rates via crypto.

## Known failure modes

- Unsupported coin symbol returns an error or null fields if not listed on Upbit
- Global reference price unavailable causes null global_reference_usd and undefined premium
- USDT/USD rate feed failure results in null usdt_usd_rate and may affect premium calculation
- Network timeout to Upbit or global price source returns an error response
- Missing or invalid base query parameter defaults to BTC silently

## How this service works

Kimchi premium - Upbit KRW price vs global USD price for a coin, with premium percent adjusted for the live USDT/USD rate, implied KRW per USD and 24h change

## Output

A JSON object containing the coin symbol, Upbit KRW spot price, global USD reference price, implied USD price from Upbit, kimchi premium as a percentage, implied KRW/USD rate, Upbit KRW/USDT rate, live USDT/USD conversion rate used, 24h price change percent, 24h KRW volume, the global reference data source name, and the UTC timestamp of the check.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "base": {
       "type": "string",
       "description": "optional coin symbol, default BTC, e.g. ETH, XRP, SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "base",
      "kimchi_premium_pct"
     ],
     "properties": {
      "base": {
       "type": "string",
       "description": "Base asset or base currency"
      },
      "reading": {
       "type": "string"
      },
      "checked_at": {
       "type": [
        "string",
        "null"
       ],
       "description": "Time the check was run (UTC)"
      },
      "usdt_usd_rate": {
       "type": [
        "number",
        "null"
       ],
       "description": "USDT price in US dollars used to convert USDT quotes"
      },
      "change_24h_pct": {
       "type": [
        "number",
        "null"
       ],
       "description": "Change over 24 hours, percent"
      },
      "volume_24h_krw": {
       "type": [
        "number",
        "null"
       ],
       "description": "Volume 24h krw"
      },
      "upbit_krw_price": {
       "type": "number",
       "description": "Upbit krw price"
      },
      "upbit_implied_usd": {
       "type": "number",
       "description": "Upbit implied, in US dollars"
      },
      "kimchi_premium_pct": {
       "type": "number",
       "description": "Kimchi premium, as a percentage"
      },
      "upbit_krw_per_usdt": {
       "type": [
        "number",
        "null"
       ],
       "description": "Upbit krw per usdt"
      },
      "implied_krw_per_usd": {
       "type": [
        "number",
        "null"
       ],
       "description": "Implied krw per, in US dollars"
      },
      "global_reference_usd": {
       "type": "number",
       "description": "Global reference, in US dollars"
      },
      "global_reference_source": {
       "type": [
        "string",
        "null"
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-kimchi-premium-960c8a57/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)