Pricing & quotas
The API has no separate billing. It rides on your WeatherFiles account: the same tier and the same daily download limit apply whether you download from the website, the OpenCPN plugin, or a script. For current prices, see weatherfiles.com/pricing.
What the tier controls
| Free | Pro | |
|---|---|---|
| Models | harm-nl | All 27+ |
| Daily downloads | Limited | Higher / unlimited |
One-shot /v1/grib + slices | Yes | Yes |
| Per-request size cap | Tighter | Looser |
The exact numbers are whatever your plan says on the website — the API doesn't change them.
Check your live figures any time with GET /v1/auth/me: tier, daily_download_limit, daily_downloads_used_today,
and allowed_models.
How metering works
- Listing models and reading metadata is free; downloading GRIB data is what counts against the daily limit.
- A slice download counts the same as a one-shot
/v1/grib. - Downloads are also rate-limited per account (short window) — handle
429withRetry-After(see Errors). - The daily limit resets each day; a model outside your tier returns
403.
To raise limits or unlock all models, upgrade at weatherfiles.com/pricing.