# DeepSearch SK Hynix Dual-Listed Stock Price API

> DeepSearch SK Hynix Dual-Listed Stock Price API is a paid API for AI agents from x402.deepsearch.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns the KRX price, US ADR price, and USD/KRW exchange rate for SK Hynix (000660/SKHY) on a given date or the latest close

## Facts

- Endpoint: GET https://x402.deepsearch.com/v1/context/skhynix-dual
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/deepsearch-sk-hynix-dual-listed-stock-price-api-4145c0b6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DBaiwe7xNg8dtmTQ-aunU

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 deepsearch-sk-hynix-dual-listed-stock-price-api-4145c0b6
```

Example prompt: What was SK Hynix's closing price on both the Korean exchange (KRX) and the US ADR market on July 14, 2026, and what was the USD/KRW rate that day?

## When to prefer this

Choose this endpoint when you specifically need SK Hynix dual-listing data — both the KRX price in KRW and the US ADR price in USD in a single call, along with the live FX rate. It is purpose-built for 000660/SKHY cross-market analysis with no subscription required, billed at $0.1 USDC per query. Prefer this over generic stock APIs when you need Korean market data with USD/KRW conversion bundled together for a semiconductor sector leader.

## Known failure modes

- Date not yet available (future date or before market open) — returns error or empty data
- Date predates the available history window (beyond 3 years for price data)
- Weekend or Korean market holiday — KRX price may be unavailable
- ADR not yet listed on the requested date — listedDate field may indicate unavailability
- Invalid date format (not YYYY-MM-DD) — schema validation error
- Payment failure on Base Mainnet — 402 response, no data returned

## How this service works

Up to 10 years of financials + 3 years of daily price history for all 2,000+ KRX stocks. Pay-per-query with USDC on Base Mainnet — no subscription.

## Output

Returns a JSON object with: the KRX closing price in KRW (ticker 000660), the US ADR closing price in USD (ticker SKHY) with its listed date, the USD/KRW FX rate sourced from frankfurter.app, the mode (historical or latest), and the date the data corresponds to.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "date": {
       "type": "string",
       "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
       "description": "YYYY-MM-DD. Omit for the latest close."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fx": {
   "asOf": "2026-07-14",
   "source": "frankfurter.app",
   "usdKrw": 1495.49
  },
  "adr": {
   "date": "2026-07-14",
   "ticker": "SKHY",
   "closeUSD": 193.92,
   "listedDate": "2026-07-13"
  },
  "krx": {
   "date": "2026-07-14",
   "ticker": "000660",
   "closeKRW": 2123000
  },
  "mode": "historical",
  "requestedDate": "2026-07-14"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/deepsearch-sk-hynix-dual-listed-stock-price-api-4145c0b6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.deepsearch.com](https://www.zero.xyz/host/x402.deepsearch.com/llms.txt)