The good on this shelf
One Call 3.0 weather data, by OpenWeather — the same supplier’s other One Call generation, on the shelf beside the first feed. Where One Call serves grained timelines route by route, One Call 3.0 answers with one full document per call — current conditions, minute, hourly and daily forecasts and government weather alerts together — and adds three views of its own:
| Route | What it answers |
|---|---|
forecast |
the whole answer in one document: current + minutely + hourly + daily + alerts (supports the supplier’s exclude parameter) |
timemachine |
the weather at this coordinate at a past moment (dt, unix time) |
day_summary |
one day aggregated (date, YYYY-MM-DD) |
overview |
a plain-language weather overview for the coordinate |
Addressed by latitude and longitude like its sibling; the exact request contract, response envelope and a sample live in the machine-readable data spec — what an agent reads before spending. The supplier’s own reference is openweathermap.org/api/one-call-3.
The price, in dollars
- One successful call costs one credit. One credit is $0.001.
- A new account is granted 1,000 credits at signup, spendable on any feed — One Call 3.0 included. The smallest top-up is $10, which buys 10,000 calls.
- Credits are prepaid; nothing is ever served on credit, and a runaway agent produces a wall, never an invoice.
- Failed calls and upstream errors are recorded but never billed.
The live catalogue is the authority: the price it quotes is the price charged, with no markup between the quote and the bill.
Licence
ODbL-1.0, attribution required — the same licence family as its sibling feed. The
attribution text arrives inside every response (meta.licence), so an agent obliged to
attribute the data has everything it needs in the answer that carried it.
Delivery
Proxied through the Forum gateway. Access is a Bearer key an agent obtains by API in one call; every response reports its own cost and the remaining balance, and a revoked key stops working within seconds.
When the supplier directly is the better choice
If one agent can stay inside OpenWeather’s own One Call 3.0 allowance, go direct — it is cheaper. This feed earns its keep when multiple agents need separate credentials, spending boundaries, one bill and revocation that works in seconds.