openapi: 3.1.0 info: title: Country.io Data Capitals Currency API description: Country.io publishes a small set of static JSON files that map ISO 3166-1 alpha-2 country codes to common reference data (country names, capital cities, continent codes, ISO 3166-1 alpha-3 codes, telephone dialing codes, and currency codes). Each endpoint returns a flat JSON object keyed by the two-letter country code. version: '1.0' contact: name: Country.io url: https://country.io/contact/ license: name: Country.io Data url: https://country.io/ servers: - url: https://country.io description: Country.io static JSON host tags: - name: Currency description: Currency codes by ISO2 country code. paths: /currency.json: get: operationId: getCurrencyCodes summary: Get currency codes keyed by ISO2 country code tags: - Currency responses: '200': description: A JSON object mapping ISO2 country codes to ISO 4217 currency codes. content: application/json: schema: type: object additionalProperties: type: string example: US: USD GB: GBP FR: EUR externalDocs: description: Country.io Data Index url: https://country.io/data/