Open-Meteo Forecast API
Open-Meteo
Free
Weather forecasts and current atmospheric conditions for Calm planning and geo context.
Acknowledgements
Arctelia uses a mix of public APIs, government services, nonprofit data, and locally stored reference datasets to power planning, environmental context, and place discovery.
This page is generated from the repository's provider registry so new data integrations can be documented in one place and cited consistently.
Environmental
Open-Meteo Climate API
Open-Meteo
Free
Seasonal climate normals used for planning windows beyond short-term forecasts.
Open-Meteo Marine API
Open-Meteo
Free
Sea-surface temperature context for marine and coastal sessions.
NOAA CO-OPS Tides & Currents
National Oceanic and Atmospheric Administration
FreeGovernment
Tide predictions and coastal water timing used in Scout and Calm guidance.
USGS National Water Information System
United States Geological Survey
FreeGovernment
River flow, water temperature, and gage-height observations for freshwater conditions.
USGS Statistics Service
United States Geological Survey
FreeGovernment
Historical flow normals used for seasonal planning and comparisons.
USGS 3DEP Elevation Point Query Service
United States Geological Survey
FreeGovernment
Elevation samples used for terrain-aware guidance and route context.
NOAA nowCOAST / BlueTopo Bathymetry
National Oceanic and Atmospheric Administration
FreeGovernment
Bathymetry tiles and derived contours used for coastal and marine map overlays.
eBird API
Cornell Lab of Ornithology
API KeyNonprofit
Bird frequency and notable sightings used in habitat and birding context.
iNaturalist Observations API
iNaturalist / California Academy of Sciences / National Geographic Society
FreeNonprofit
Species observations used for ecological and place-based natural history context.
FEMA National Flood Hazard Layer
Federal Emergency Management Agency
FreeGovernment
Flood-zone overlays used in site and risk context.
EPA Smart Location Database
United States Environmental Protection Agency
FreeGovernment
Walkability and urban-form metrics used in urban and architectural context.
US Census Bureau ACS 5-Year Estimates
United States Census Bureau
API KeyGovernment
Demographic context used for neighborhood and place interpretation.
OpenStreetMap Overpass API
OpenStreetMap contributors / Overpass
FreeNonprofit
Nearby building context and map features used in site interpretation.
Walk Score API
Walk Score
API Key
Walk, transit, and bike scores used for urban mobility context.
TomTom Traffic Flow API
TomTom
API Key
Road congestion and flow context used for urban timing and route conditions.
Places
Foursquare Places API
Foursquare
API Key
Place search and venue context used in Slate suggestions and geo guidance.
Google Places API (New)
API Key
Nearby and text place search used in location discovery and suggestions.
Recreation.gov RIDB API
Recreation.gov / U.S. federal recreation partners
API KeyGovernment
Recreation areas and facilities used in outdoor location suggestions.
Reference
Wikivoyage MediaWiki API
Wikimedia Foundation
FreeNonprofit
Destination and local place context used in travel and location guidance.
Wikidata SPARQL Query Service
Wikimedia Foundation
FreeNonprofit
Structured place and entity lookup used in location search.
Local Dataset
UNESCO World Heritage dataset (local copy)
UNESCO
Local CopyNonprofit
Locally stored world heritage records used in search and place suggestions.
If you spot a missing source or a citation that should be more specific, contact the team or open an issue against the registry in lib/data/dataAcknowledgements.ts.