daumpostcode다음 우편번호 서비스를 별도의 패키지 설치 없이도 네이티브 앱에서 쉽게 사용할 수 있습니다.
PostcodesioRAPI wrapper around postcodes.io - free UK postcode lookup and geocoder
Australian-Postcode-DataHandy for online commerce in Australia, this is a JSON formatted list of places, postcodes and longitude and latitude data
iceaddrPython package to look up information about Icelandic street addresses, postcodes and placenames
postcodeA PHP library to validate and format postcodes