openapi: 3.0.3
info:
  title: Calendarific Holiday Countries Languages API
  description: 'Worldwide public holidays REST API covering 230+ countries.

    Calendarific provides accurate holiday data including national, local,

    religious, and observance holidays. Useful for ecommerce, scheduling,

    HR systems, travel planning, and global operations.

    '
  version: '2.0'
  contact:
    name: Calendarific Support
    email: info@calendarific.com
    url: https://calendarific.com/
  termsOfService: https://calendarific.com/terms
  license:
    name: Commercial
    url: https://calendarific.com/pricing
servers:
- url: https://calendarific.com/api/v2
  description: Production
security:
- apiKey: []
tags:
- name: Languages
  description: List supported languages and their ISO codes.
paths:
  /languages:
    get:
      tags:
      - Languages
      summary: List Languages
      description: 'Returns the full list of languages supported by Calendarific

        with their two-letter ISO639 codes.

        '
      operationId: listLanguages
      parameters:
      - name: api_key
        in: query
        required: true
        description: Calendarific API key.
        schema:
          type: string
      responses:
        '200':
          description: List of supported languages.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LanguagesResponse'
        '401':
          description: Missing or invalid API key.
        '429':
          description: Rate limit exceeded.
components:
  schemas:
    Meta:
      type: object
      properties:
        code:
          type: integer
          description: HTTP-style status code echoed in the body.
          example: 200
      required:
      - code
    LanguagesResponse:
      type: object
      properties:
        meta:
          $ref: '#/components/schemas/Meta'
        response:
          type: object
          properties:
            languages:
              type: array
              items:
                $ref: '#/components/schemas/Language'
    Language:
      type: object
      properties:
        name:
          type: string
          example: English
        iso-639:
          type: string
          example: en
  securitySchemes:
    apiKey:
      type: apiKey
      in: query
      name: api_key
      description: API key passed as a URL query parameter.