Wild APIs
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Building a real estate tool

A working stack, not a category dump: core data, location, enrichment. Every listing below carries its own spec sheet.
7 APIs across 3 roles
01

Core data

Parcels, amenities and neighbourhood features
Overpass APIFree
Query OpenStreetMap by tag, area and bounding box: shops, trails, water points, any mapped feature.
None · JSON
1k–10k/day
Foursquare PlacesFreemium
Search and details for venues worldwide: categories, addresses, hours, ratings, tips and photos.
API key · JSON
100–1k/day
02

Location

Address to coordinate and back
Mapbox GeocodingFreemium
Forward, reverse and batch geocoding of addresses, streets and places for display on Mapbox maps
API key · JSON
1k–10k/day
NominatimFree
Free OpenStreetMap geocoding and reverse geocoding, no key required, rate-limited to about 1 request/sec.
None · JSON
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03

Enrichment

Environmental signals buyers ask about
OpenAQFreemium
Aggregated PM2.5, NO2, O3 and other pollutant readings from ground monitoring stations worldwide.
API key · JSON
10k+/day
NOAA Climate Data OnlineFree
Historical station observations and daily-to-yearly climate summaries from NOAA's archive, by station or area.
API key · JSON
10k+/day
NASA FIRMSFree
Satellite active-fire hotspots from MODIS, VIIRS and Landsat by bounding box and date, near real-time.
API key · CSV
10k+/day
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