Open-Meteo ET0 and irrigation weather API
How it is run today: Vendor API (pass-through)
Open-Meteo is an HTTP JSON weather forecast and historical API. It includes ag-relevant variables: ET0, soil moisture and temperature, VPD, precip, radiation, and others, stitching national model output (including NOAA GFS/HRRR and ECMWF IFS via their aggregation).
Pass-through today is yes — an easy commodity wrap. Direct NOAA or ECMWF raw feeds are also possible but a harder developer experience.
Raw forecast JSON is commodity. Differentiation is farm-field AOI defaults, ET0 / irrigation helpers, soil layers baked into one API, an SLA, and bundling with field context — not owning the NWP science.
To deliver: an HTTPS proxy plus caching; a commercial Open-Meteo plan if needed (their docs describe a customer- prefix / apikey). GPU: none. Open-Meteo’s usage licence distinguishes non-commercial, commercial, and self-hosted — use commercial or self-host for paid B2B. The customer supplies lat/lon (or a field polygon centroid), variables, and a horizon.
We do not own the weather models. We do not already run a branded irrigation API on top of this.
Upstream
Also in the catalog : Open-Meteo.
Reach out
If this is the job you need, say so. We will not claim we already host it. We will say whether we pass through, stand it up, or cannot do it honestly.