Retrieve language products [BETA]

Returns all DeepL API products, including the API endpoints they expose, and the features they support.

For each feature, the response indicates which languages must support it for the feature to be available — source only (required_on_source), target only (required_on_target), or both. This allows clients to determine feature availability for a language pair by checking the appropriate language’s features array returned by GET /v3/languages.

GET /v3/languages/products

Retrieve Language Products

cURL

curl --request GET \
  --url https://api.deepl.com/v3/languages/products \
  --header 'Authorization: <api-key>'

200

[
  {
    "name": "translate_text",
    "endpoints": [
      "v2/translate"
    ],
    "features": [
      {
        "name": "formality",
        "required_on_target": true
      },
      {
        "name": "custom_instructions",
        "required_on_target": true
      },
      {
        "name": "tag_handling",
        "required_on_source": true,
        "required_on_target": true
      },
      {
        "name": "glossary",
        "required_on_source": true,
        "required_on_target": true
      }
    ]
  },
  {
    "name": "voice",
    "endpoints": [
      "v3/voice/realtime"
    ],
    "features": [
      {
        "name": "glossary",
        "required_on_source": true,
        "required_on_target": true
      }
    ]
  },
  {
    "name": "style_rules",
    "endpoints": [
      "v3/style_rules"
    ],
    "features": []
  }
]

This endpoint is available for testing in BETA. Breaking changes may be pushed with little or no advance notice, and we provide no guarantees of stability.

Authorizations

Authorization · string · header · required

Authentication with Authorization header and DeepL-Auth-Key authentication scheme. Example: DeepL-Auth-Key <api-key>

Response

200

application/json

JSON array where each item represents a DeepL API product.

name · enum<string> · required

The product identifier.

Available options: translate_text, translate_document, glossary, voice, write, style_rules

Example:

"translate_text"

endpoints · string[] · required

API endpoints associated with this product.

Example:

["v2/translate"]

features · object[] · required

Features supported by this product. Each feature indicates which languages must support it for the feature to be available — source, target, or both.

Show child attributes