# Korean Apartment Transaction Trend Data (kr-apt/trend)

> Korean Apartment Transaction Trend Data (kr-apt/trend) is a paid API for AI agents from x402.pokt-agent.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Returns monthly apartment transaction trend statistics (count, median price, median price per m²) for a specified Korean region and optionally filtered by apartment complex name.

## Facts

- Endpoint: GET https://x402.pokt-agent.com/kr-apt/trend?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/korean-apartment-transaction-trend-data-kr-apt-trend-704c2384
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7QAZIxM9eMg-xXbW269Tn

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 korean-apartment-transaction-trend-data-kr-apt-trend-704c2384
```

Example prompt: Show me the monthly apartment transaction trends for 강남구 over the last 6 months — I want to see how many deals closed each month and what the median price per square meter was.

## When to prefer this

Choose this endpoint when you need structured, time-series apartment transaction data for a specific Korean administrative region — especially when you need median pricing and volume trends month-by-month without requiring an account or API key. It is ideal for real estate analytics, investment research, and market monitoring in South Korea, payable per-call in USDC with no subscription overhead.

## Known failure modes

- Missing required 'region' query parameter returns a 400 error
- Invalid or unrecognized region name may return empty rows array
- Months parameter out of supported range may return partial data
- Payment not completed via x402/USDC on Base results in 402 Payment Required response
- Network or provider downtime returns 5xx error

## How this service works

Pay-per-call Korean company due diligence, company ID crosswalk, sanctions screening with Korean name variants, Upbit/Bithumb risk events, HWP to Markdown, business status, business-day calendar, address normalisation, law, rates, filings and more. No account or API key: pay each call in USDC on Base via x402.

## Output

A JSON array of monthly rows, each containing the month (YYYY-MM), transaction count, median price in KRW, and median price per m² in KRW, scoped to the queried region and optional apartment name filter.

## 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": [
      "region"
     ],
     "properties": {
      "apt": {
       "type": "string"
      },
      "months": {
       "type": "string"
      },
      "region": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "rows": [
   {
    "count": 312,
    "month": "2026-09",
    "median_price_krw": 2650000000,
    "median_per_m2_krw": 31000000
   }
  ],
  "region": "강남구"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/korean-apartment-transaction-trend-data-kr-apt-trend-704c2384/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.pokt-agent.com](https://www.zero.xyz/host/x402.pokt-agent.com/llms.txt)