countries.json

Sample data:

[
  {
    "iso": "AD",
    "name": "ANDORRA",
    "printable_name": "Andorra",
    "iso3": "AND",
    "numcode": "20",
    "phonecode": "+376",
    .........
  }
]

zip_codes.json

Contains ZIP codes for Slovakia and Czech republic

[
  {
    "zip_id": "1",
    "zip_value": "97632",
    "zip_country": "SK"
  },
  .......
]