The playground

Try any of 919 endpoints — live.

Pick an endpoint, load a working example, tweak the params, and send — no signup to try. Results render the way the data deserves; raw JSON, headers & code are one tab away.

Playground demo key · api.reefapi.com
post/geo-postal/v1/batch2 credits

Resolve up to 50 mixed lookups in one call (cheap local queries).

Working example
Parameters

Up to 50 lookup items. Each is an object with an `action` (eu_regions|tr_regions|in_postal|admin_boundary|postal_lookup) plus that action's params. Items resolve independently — one bad item never fails the batch.

request preview
curl -X POST https://api.reefapi.com/geo-postal/v1/batch \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"items":"[{\"action\":\"eu_regions\",\"lat\":48.8566,\"lon\":2.3522},{\"action\":\"postal_lookup\",\"country\":\"TR\",\"postal_code\":\"34710\"}]"}'

Hit Send to run this endpoint live.