The ask, in one paragraph
Give active Premium subscribers a Point Forecast API key that returns real (unmodified) data, rate-limited to 500 requests per day, restricted to a small number of saved locations (2–3 is plenty), under a strict personal, non-commercial licence. Keep ECMWF excluded and keep every commercial use on the Professional plan, exactly as now. If free-with-Premium is a step too far, price it as a modest add-on — most of us would pay it without blinking.
Who is asking
Home users. Specifically the fast-growing overlap between Windy Premium subscribers and home-automation users (Home Assistant alone has well over a million active installations). We are not businesses. We want the forecast for one location — our own house — machine-readable, a handful of times a day.
A concrete, real example (mine): a heat pump that cools a stone-floored house through its underfloor heating. The control system reads tomorrow's maximum temperature to decide whether to pre-chill the floors overnight (cheap electricity, high heat-pump efficiency), and tomorrow's dew point to decide how cold the floors may safely go without condensation. That is eight API calls a day. It is currently impossible to do this with Windy at any price a household can justify.
Why the current options don't serve this need
Premium includes no API access at all.
The Trial key intentionally returns "randomly shuffled and slightly modified data" — unusable, by design, for any real automation.
Professional (€990/year, 10,000 req/day, unlimited models) is built and priced for businesses. A household needing 8 requests/day for one lat/lon is not its market, and never will be.
This gap is not new. The community has asked repeatedly over many years — see for instance:
Basic API access with premium account
API access for Windy Premium?
API Trial suitable for home use?
Pricing for personal use
API possibilities for Home Assistant integration
Why this is good for Windy, not just for us
It sells Premium subscriptions. Today, a home-automation user gets nothing from Premium that their automation can use — so they wire up Open-Meteo.com or met.no, which give hourly temperature, humidity and dew point free, without keys. A Personal API makes Premium the obvious subscription for every Home Assistant user who already loves Windy's app. That is new recurring revenue from people you currently turn away.
It cannot cannibalise Professional. Personal licence, hard rate cap, 2–3 fixed locations, no ECMWF, no redistribution, key tied to an active Premium subscription. No business can run on that; every safeguard Professional's price defends is intact.
The infrastructure cost is already being paid. Trial keys are allowed 500 requests/day today — the servers already do this work, then scramble the result. Serving the true numbers to a paying subscriber costs the same compute as serving the corrupted ones to a free key.
Goodwill, in a community that has asked politely for years. The threads above span half a decade. Meeting a long-standing, reasonable request from paying subscribers is the cheapest marketing available.
Suggested shape (open to any variant)
Aspect-------Suggestion
Eligibility:-----Active Premium subscription
Data:---------Real, unmodified point-forecast data
Rate limit:-----500 requests/day (fewer would honestly suffice)
Locations:-----2–3 saved lat/lon pairs per key
Models:-------Standard set (iconEu, gfs, arome, …); ECMWF stays Professional-and-above
Licence:------Personal, non-commercial, no redistribution
Price:---------Included with Premium, or a small add-on (€xx/yr)
Any of these numbers can move. The essential points are only two: real data and a price a household can justify.