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SYNTHORA Historical Weather Archive (ERA5)
x402
SYNTHORA Historical Weather Archive (ERA5) is a paid API for AI agents from historical-weather-archive.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns 80+ years of hourly and daily ERA5 reanalysis weather data (temperature, precipitation, wind, humidity, radiation) for any geographic coordinate and historical date range.
Price / call$0.001
Success—
StatusUnknown
How this service works
Returns 80+ years of hourly and daily reanalysis weather (ERA5) — temperature, precipitation, wind, humidity, radiation — for any coordinate and past date range from Open-Meteo's archive API. Autonomous backtesting, energy, agriculture and actuarial agents use it for A2A historical baselining and agent-to-agent time-series analysis. Ranking surface: historical weather API, ERA5 reanalysis, past weather, weather archive, climate history.
Output
A JSON object containing daily weather time series arrays (dates, precipitation sums in mm, max temperature in °C) for the requested coordinate and date range, along with the matched latitude/longitude, unit metadata, and provenance information pointing back to the Open-Meteo ERA5 archive source.
Example use cases
Solar farm backtesting analysis
“I need ERA5 historical weather data for Phoenix, Arizona (33.4484, -112.0740) from January 1, 2015 to December 31, 2020 — give me daily temperature and precipitation so I can backtest our solar energy yield model.”
Agricultural drought risk assessment
“Can you pull historical daily precipitation and temperature from the ERA5 archive for a farm location at 41.8781, -87.6298 covering the last 10 growing seasons, from March 1, 2014 through October 31, 2023?”
Actuarial flood claim baseline
“I need to validate an insurance claim — get me the ERA5 historical rainfall totals for London (51.5074, -0.1278) for the week of January 5, 2024 through January 12, 2024 so I can see what precipitation actually fell during that period.”
Technical details
Endpoint
POSThttps://historical-weather-archive.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need long-horizon historical weather reanalysis (ERA5) for arbitrary global coordinates and custom date ranges, especially for backtesting, climate baselining, energy modeling, agricultural analysis, or actuarial work. Prefer it over forecast APIs when the dates are in the past, and over station-based historical APIs when you need globally consistent gridded data with 80+ years of coverage at any coordinate without gaps.
Side effects
- Invalid or out-of-range coordinates return an error or empty result
- Dates outside the ERA5 archive coverage (pre-1940) may return no data
- Future dates will not return data as this is a historical archive only
- Malformed date strings (non-ISO 8601) cause parsing errors
- Network or upstream Open-Meteo API outages cause 5xx failures
- Payment failure via x402 protocol blocks access before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| end_date | string | end_date |
| latitude | number | latitude |
| longitude | number | longitude |
| start_date | string | start_date |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "historical-weather-archive",
"result": {
"daily": {
"time": [
"2024-01-01",
"2024-01-02",
"2024-01-03"
],
"precipitation_sum": [
1.9,
10.2,
9.3
],
"temperature_2m_max": [
7.4,
7.9,
10.6
]
},
"latitude": 52.54833,
"longitude": 13.407822,
"daily_units": {
"time": "iso8601",
"precipitation_sum": "mm",
"temperature_2m_max": "°C"
}
},
"provenance": {
"url": "https://archive-api.open-meteo.com/v1/archive",
"source": "Historical Weather Archive (ERA5)"
}
}
}Tags
x402
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