openapi: 3.0.3
info:
  title: ExchangeRate Account Currencies API
  description: 'ExchangeRate-API provides real-time and historical currency exchange rates for 165 currencies across 200 countries. Operating since 2010, the service delivers reliable currency conversion data via simple HTTP GET requests. Authentication is supported via API key embedded in the URL path or via Bearer token header. A free tier is available with 1,500 monthly requests and daily updates; paid plans offer hourly or 5-minute update frequencies and higher quotas. Historical data is available back to 1990.

    '
  version: '6'
  termsOfService: https://www.exchangerate-api.com/terms
  contact:
    name: ExchangeRate-API Support
    email: support@exchangerate-api.com
  x-api-id: exchangerate:exchangerate-api
  x-provider-name: ExchangeRate-API
servers:
- url: https://v6.exchangerate-api.com/v6
  description: ExchangeRate-API v6 endpoint (API key in URL path)
- url: https://v6.exchangerate-api.com/v6
  description: ExchangeRate-API v6 endpoint (Bearer token auth — omit key from path)
security:
- BearerAuth: []
tags:
- name: Currencies
  description: Supported currency codes and metadata
paths:
  /{apiKey}/codes:
    get:
      operationId: getSupportedCodes
      summary: Get all supported currency codes
      description: 'Returns a list of all 165 supported currencies with their ISO 4217 codes and full names.

        '
      tags:
      - Currencies
      security:
      - {}
      parameters:
      - $ref: '#/components/parameters/apiKey'
      responses:
        '200':
          description: Successful response with supported currency codes
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SupportedCodesResponse'
              example:
                result: success
                documentation: https://www.exchangerate-api.com/docs
                terms_of_use: https://www.exchangerate-api.com/terms
                supported_codes:
                - - AED
                  - UAE Dirham
                - - AFN
                  - Afghan Afghani
                - - ARS
                  - Argentine Peso
                - - AUD
                  - Australian Dollar
                - - EUR
                  - Euro
                - - GBP
                  - Pound Sterling
                - - USD
                  - US Dollar
        '403':
          description: Authentication error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    SupportedCodesResponse:
      allOf:
      - $ref: '#/components/schemas/BaseMetadata'
      - type: object
        required:
        - result
        - supported_codes
        properties:
          supported_codes:
            type: array
            description: 'Array of [currencyCode, currencyName] pairs for all supported currencies

              '
            items:
              type: array
              minItems: 2
              maxItems: 2
              items:
                type: string
            example:
            - - AED
              - UAE Dirham
            - - USD
              - US Dollar
            - - EUR
              - Euro
    ErrorResponse:
      type: object
      required:
      - result
      - error-type
      properties:
        result:
          $ref: '#/components/schemas/ResultError'
        error-type:
          type: string
          description: Machine-readable error code
          enum:
          - unsupported-code
          - malformed-request
          - invalid-key
          - inactive-account
          - quota-reached
          example: invalid-key
    BaseMetadata:
      type: object
      description: Common metadata fields returned in all successful responses
      properties:
        result:
          $ref: '#/components/schemas/ResultSuccess'
        documentation:
          type: string
          format: uri
          description: Link to the API documentation
          example: https://www.exchangerate-api.com/docs
        terms_of_use:
          type: string
          format: uri
          description: Link to the terms of use
          example: https://www.exchangerate-api.com/terms
    ResultError:
      type: string
      enum:
      - error
      description: Indicates the request failed
    ResultSuccess:
      type: string
      enum:
      - success
      description: Indicates the request was successful
  parameters:
    apiKey:
      name: apiKey
      in: path
      required: true
      description: Your personal API key obtained from the ExchangeRate-API dashboard
      schema:
        type: string
        example: YOUR-API-KEY
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'Pass API key as a Bearer token in the Authorization header (e.g. Authorization: Bearer YOUR-API-KEY). When using this method, omit the API key from the URL path. The path-key endpoints do not use a security scheme in the OpenAPI sense; the {apiKey} path parameter serves as the credential.

        '
externalDocs:
  description: ExchangeRate-API Documentation
  url: https://www.exchangerate-api.com/docs/overview