LocationIQ
Address geocoding, turn-by-turn routing, and POI search (nearby & autocomplete)
OpenRouteService
Address geocoding (fallback)
Nominatim (OpenStreetMap)
Address geocoding (fallback, no key required)
TrailSplits
Elevation lookups, trail POI search, and the Topo/Trail basemap styles
Open-Meteo
Weather forecasts and current conditions
OpenStreetMap
Standard basemap tiles
CyclOSM
Cycling-focused basemap tiles
Esri / ArcGIS Online
Satellite (World Imagery) basemap
CARTO
Dark, Light, and Voyager basemap styles