Retrieve instant, accurate information for any country in the world in lightweight JSON format. { "name": "United States of America", "topLevelDomain": [ ".us" ], "alpha2Code": "US", "alpha3Code": "USA", "callingCodes": [ "1" ], "capital": "Washington, D.C.", "altSpellings": [ "US", "USA", "United States of America" ], "region": "Americas", "subregion": "Northern America", "population": 323947000,