openapi: 3.1.0
info:
  title: DeepL Translation Documents Translate API
  description: The DeepL API exposes machine translation, document translation, glossary management, write/improve, and usage endpoints. Both Pro and Free tiers are available, hosted on different base URLs.
  version: '2'
  contact:
    name: DeepL Developers
    url: https://developers.deepl.com/
servers:
- url: https://api.deepl.com/v2
  description: DeepL Pro
- url: https://api-free.deepl.com/v2
  description: DeepL Free
security:
- authKey: []
tags:
- name: Translate
paths:
  /translate:
    post:
      summary: Translate text
      operationId: translateText
      tags:
      - Translate
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                text:
                  type: array
                  items:
                    type: string
                source_lang:
                  type: string
                target_lang:
                  type: string
                formality:
                  type: string
                  enum:
                  - default
                  - more
                  - less
                  - prefer_more
                  - prefer_less
                glossary_id:
                  type: string
              required:
              - text
              - target_lang
      responses:
        '200':
          description: Translated texts and detected source language.
components:
  securitySchemes:
    authKey:
      type: apiKey
      in: header
      name: Authorization
      description: DeepL-Auth-Key <key>