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Vextorium Weather Forecast API
x402
Vextorium Weather Forecast API is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-11).
Returns current weather conditions and up to 9-day daily forecasts (temperature, precipitation, wind, cloud cover, humidity, pressure, sky state) for any latitude/longitude on Earth, sourced from MET Norway.
Price / call$0.004
Success—
StatusUnknown
How this service works
Weather forecast for any place on Earth from the Norwegian Meteorological Institute: current conditions and daily max/min temperature, precipitation, wind, cloud cover, humidity, pressure and sky state for up to 9 days.
Output
A JSON object with the coordinates queried, a 'now' block containing current temperature (°C), sky state, wind speed (km/h), wind direction, humidity (%), pressure (hPa), and cloud cover (%), plus a 'days' array with one entry per requested day containing date, max/min temperature, precipitation (mm), max wind speed, and sky state. Also includes the data source (MET Norway, CC BY 4.0) and last-updated timestamp.
Example use cases
Outdoor event planning weather check
“I'm planning an outdoor event in Rome next week — can you pull the 7-day forecast for latitude 41.9, longitude 12.5? I need daily highs and lows, chance of rain, and wind speed so I can decide on the venue setup.”
Real-time field conditions for logistics
“What are the current wind speed, temperature, and sky conditions right now at latitude 51.5, longitude -0.12? Our delivery team needs to know before heading out.”
Travel packing forecast lookup
“I'm flying to Tokyo in 3 days — give me the 3-day weather forecast for latitude 35.68, longitude 139.69, including daily rain totals, temperatures, and whether it'll be cloudy or clear.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/weather?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need reliable, globally-covering weather forecasts sourced from MET Norway's authoritative data, especially for agentic workflows that already use x402 micropayment infrastructure. It's ideal for precise lat/lon queries anywhere on Earth, not just major cities, and returns structured JSON well-suited for downstream automation. Prefer it over general-purpose weather APIs when you need consistent daily forecast granularity for up to 9 days with minimal per-call cost.
Side effects
- Missing required lat or lon fields returns a validation error
- Coordinates outside valid ranges (-90 to 90 lat, -180 to 180 lon) may return an error or empty data
- Days value outside 1-9 range may be rejected or clamped to default (3)
- Upstream MET Norway data unavailability may cause a 502 or empty response
- Payment failure (insufficient USDC balance) returns a 402 Payment Required before the forecast is served
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"lat": 40.42,
"lon": -3.7,
"now": {
"sky": "heavy rain",
"wind_kmh": 17,
"humidity_pct": 96.2,
"pressure_hpa": 1024.5,
"temperature_c": 16.4,
"wind_direction": 30.9,
"cloud_cover_pct": 98.4
},
"days": [
{
"sky": "partly cloudy",
"date": "2026-10-02",
"max_c": 16.7,
"min_c": 16.2,
"rain_mm": 1.4,
"max_wind_kmh": 17
},
{
"sky": "overcast",
"date": "2026-10-03",
"max_c": 20.9,
"min_c": 15.7,
"rain_mm": 8,
"max_wind_kmh": 11
}
],
"source": "MET Norway (Norwegian Meteorological Institute), CC BY 4.0",
"updated": "2026-10-02T19:18:06Z"
}
}Tags
x402
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