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Coordinates OR postal code → EU/EFTA/candidate statistical regions: country, NUTS 0-3 hierarchy, LAU commune (GISCO NUTS-2024 + LAU-2024 + TERCET pc2025).
WGS84 latitude of the point to resolve (decimal degrees). (-90–90)
WGS84 longitude of the point to resolve (decimal degrees). (-180–180)
Postal code to resolve. Spaces/dashes are ignored, case-insensitive (e.g. '10115', '75001', 'SW1A1AA').
ISO-3166 alpha-2 country code (e.g. DE, FR, TR, IN, US). Greece accepts GR or EL.
If true, include the (simplified) boundary polygon as GeoJSON. Default false — geometries are large; lookups never depend on this.
curl -X POST https://api.reefapi.com/geo-postal/v1/eu_regions \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"lat":"52.52","lon":"13.405"}'Hit Send to run this endpoint live.