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WeatherDatasetNewAdded 2026-11-13

SLF avalanche bulletin and IMIS measurement APIs (WSL Institute for Snow and Avalanche Research)

Switzerland: avalanche bulletins in season and IMIS snow and weather station measurements
Freeauth: noneCC-BY-4.0✓ verified Nov 13, 2026
Free?
FreeFree keyless APIs; bespoke data requests are invoiced separately.
Sign-up?
None neededCall it straight away
Commercial use?
YesCC-BY-4.0, with credit

The fine print

License note
The data service page puts the data under CC BY 4.0 and links the 4.0 deed, with a visible SLF source credit. Bespoke data requests are invoiced separately. Signal Lab links only.
Required attribution
Required by CC BY 4.0: show SLF as the source.
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// Overview

SLF avalanche bulletin and IMIS measurement APIs (WSL Institute for Snow and Avalanche Research)

The Swiss WSL Institute for Snow and Avalanche Research SLF offers keyless APIs for the Swiss avalanche bulletin (CAAML and GeoJSON), warning regions, and IMIS automatic snow and weather station measurements.

Coverage

Switzerland: avalanche bulletins in season and IMIS snow and weather station measurements.

Good for

#weather#switzerland#avalanche#snow#api

Verdict

A Swiss avalanche and snow source, alongside meteoswiss-open-data. Licence: CC-BY-4.0: the SLF data service page says "The data is subject to the licence CC BY 4.0" and "The data that can be obtained through the channels mentioned on this page are free of charge." Special data requests are bespoke work invoiced separately, not a paid tier of these APIs. The page says the interfaces are not sized to serve customers' own systems directly. Rate limits: the page says "It is not permitted to use electronically provided services of the SLF in a form that could impair, overload or damage the infrastructure of the SLF." Signal Lab links only.

// Limits

Free limits & license

PriceFree
Authnone
Free tierFree keyless APIs; bespoke data requests are invoiced separately.
Rate limitNot stated as a number; the SLF forbids use that could impair, overload or damage its infrastructure.
LicenseCC-BY-4.0
License noteThe data service page puts the data under CC BY 4.0 and links the 4.0 deed, with a visible SLF source credit. Bespoke data requests are invoiced separately. Signal Lab links only.
Last verifiedNov 13, 2026

Limits belong to the provider and can change. Always confirm on the evidence page.

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Information and education only. Not financial, investment, legal or tax advice. Listings can be inaccurate, incomplete or out of date and are provided "as is". Free tiers, limits and licenses belong to each provider and can change, so check the provider's own terms before you rely on them. Terms & Disclaimer

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