Stadia Maps API
Provides hosted map tiles (raster and vector), geocoding/reverse geocoding, turn-by-turn routing, and isochrone analysis built on OpenStreetMap and Valhalla.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Supports domain restrictions on API keys which reduces misuse risk. Key is passed as query param by default — prefer header injection in server-side agents.
⚡ Reliability
Best When
You need a privacy-friendly, GDPR-compliant, affordable alternative to Google Maps or Mapbox for tile serving, geocoding, and routing in a single provider.
Avoid When
You need commercial-grade POI data coverage, real-time traffic routing, or enterprise SLAs with dedicated support contracts.
Use Cases
- • Render styled vector map tiles in a web or mobile app without hosting your own tile server
- • Geocode addresses to coordinates and calculate driving/walking routes between multiple stops for logistics automation
- • Generate isochrone polygons (reachability zones) around a point to filter candidate locations within a travel-time threshold
- • Reverse geocode GPS tracks from field devices to associate coordinates with named streets and cities
- • Serve map backgrounds for data visualization dashboards without paying Google Maps per-tile fees
Not For
- • Real-time traffic data or live incident overlays (Stadia does not provide live traffic feeds)
- • Street View or photorealistic 3D map imagery
- • Indoor mapping or venue-level navigation
Interface
Authentication
API key passed as a query parameter or HTTP header. Domain restrictions can be configured per key in the dashboard to prevent unauthorized use.
Pricing
Free tier is suitable for development and low-traffic production apps. No credit card required to start.
Agent Metadata
Known Gotchas
- ⚠ Routing requests use POST with a Valhalla-format JSON body which differs structurally from typical REST APIs — agents must build the costing model object correctly
- ⚠ Tile endpoint URLs include a style name (e.g., alidade_smooth) and agents must choose a valid style or receive a 404
- ⚠ Geocoding results are Pelias-format JSON; agents expecting a simpler address object must parse the nested `properties` block
- ⚠ Free-tier daily geocoding quota resets at midnight UTC — batch jobs spanning midnight may unexpectedly hit quota mid-run
- ⚠ The OpenAPI spec covers geocoding/routing but not tile endpoints, so agent code generators may produce incomplete clients
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.