Country.io Data API
Country.io exposes six static JSON files under https://country.io. Each file is a flat object keyed by ISO 3166-1 alpha-2 country code and maps to a single reference value: country name, capital city, continent code, ISO3 code, dialing prefix, or currency code. The endpoints are open and unauthenticated.
Documentation
Specifications
Other Resources
OpenAPI
#Capitals
#Countries
#Currencies
#ISO 3166
#Open Data
#Phone Codes
#Reference Data