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1gateway Korean Weather Forecast
x402
1gateway Korean Weather Forecast is a paid API for AI agents from 1gateway.dev, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-10).
Returns the official Korea Meteorological Administration (KMA) village-level weather forecast for any point in South Korea for the next ~5 days, including hourly temperature, precipitation, wind, sky, and daily min/max.
Price / call$0.0045
Success—
StatusUnknown
How this service works
1gateway is a pay-per-call API gateway for AI agents and developers: data APIs normalized to clean English JSON, paid per request with USDC on Base via x402 — no signup, no API key. Current coverage: Korean data (real estate trades, weather forecasts, holidays); more APIs and countries are coming.
Output
Returns a JSON object with: a location object (lat, lon, KMA grid coordinates), an issuedAt timestamp, timezone, attribution, cache info, an hourly array (each entry has time, resolution, temperatureC, sky, precipitationType, precipitationProbabilityPct, precipitation1h, snowfall1h, humidityPct, windSpeedMs, windDirectionDeg, windEastwardMs, windNorthwardMs, waveHeightM, windCategory), and a daily array (date, minTempC, maxTempC, maxPopPct).
Example use cases
Outdoor event planning in Seoul
“I'm organizing an outdoor concert in Seoul this weekend — can you pull the official Korean weather forecast for Yeouido (37.5261, 126.9269) and tell me if rain is expected and what temperatures to plan for?”
Travel packing advice for Busan trip
“I'm flying to Busan (35.1796, 129.0756) in 3 days — can you get the official KMA forecast so I know whether to pack an umbrella and a heavy jacket?”
Agricultural frost risk monitoring
“Can you check the Korean weather forecast for Icheon, Gyeonggi-do at lat 37.2789, lon 127.4427 and tell me if there's any risk of freezing temperatures or snow in the next 5 days that could affect crops?”
Technical details
Endpoint
GEThttps://1gateway.dev/v1/weather/forecast?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need official, authoritative Korean government weather data (KMA) for any point in South Korea — especially for applications requiring accurate, hyper-local forecasts on a 5 km grid with precipitation type, snow amounts, and wind details. Prefer this over generic global weather APIs when South Korea coverage accuracy and official sourcing are important, or when the user specifically needs KMA data.
Side effects
- Coordinates outside KMA domain (lat <32 or >44, lon <123 or >133) return HTTP 400 and are not charged
- KMA API temporarily unavailable may return a 5xx error
- Stale or cached data if KMA has not issued a new forecast recently
- Floating-point precision issues in lat/lon may snap to a different 5km grid cell than intended
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"daily": [
{
"date": "2026-10-09",
"maxTempC": 23,
"minTempC": 14
}
],
"hourly": [
{
"sky": "clear",
"time": "2026-10-09T12:00:00+09:00",
"temperatureC": 21,
"precipitationType": "none",
"precipitationProbabilityPct": 0
}
],
"issuedAt": "2026-10-09T11:00:00+09:00",
"location": {
"lat": 37.5665,
"lon": 126.978,
"gridNx": 60,
"gridNy": 127
}
}
}Tags
x402
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