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Playground demo key · api.reefapi.com
post/geo-postal/v1/postal_lookup1 credit

country + postal code → region metadata for ~100 countries (GeoNames postal directory) with country-specific enrichment (EU→NUTS3, TR→mahalle, IN→offices).

Working example
Parameters

ISO-3166 alpha-2 country code (e.g. DE, FR, TR, IN, US). Greece accepts GR or EL.

Postal code to resolve. Spaces/dashes are ignored, case-insensitive (e.g. '10115', '75001', 'SW1A1AA').

request preview
curl -X POST https://api.reefapi.com/geo-postal/v1/postal_lookup \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"country":"FR","postal_code":"75001"}'

Hit Send to run this endpoint live.