Installation 

Install the extension in a TYPO3 14 Composer installation:

composer require "dmitryd/dd-deepl"
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Go to https://www.deepl.com/signup and sign up. Get a free API key.

Configure DeepL in the site configuration:

ddDeepl:
  apiKey: '%env(TYPO3_DEEPL_API_KEY)%'
  timeout: 30
  maximumNumberOfGlossariesPerLanguage: 2
  glossaries:
    de-en: '1a7170f3-edab-4c66-949a-4db3dc6a233f'
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If the environment variable is not set, DeepL is treated as disabled for that site.

Legacy TypoScript configuration is available only as a deprecated opt-in fallback. See Migration before using it.