DeepL Translator offers a free tier with 500,000 translated characters each month.

Connect DeepL to Lango

• Access the Lango admin panel, click the "Add Provider" button and select the DeepL provider

• Paste your DeepL API Key into the provided field

• Ensure you select the correct plan (API Free or API Pro)

• Set your preferred formality option

• Click Save

• Once saved, the key will be encrypted, and you will no longer be able to see it

Open

Lango will verify your configuration. If successful, the provider will be set as active.

Troubleshooting

If you encounter issues, consider the following common causes:

• Invalid or expired API Key: You have entered an invalid authentication key

• Incorrect Plan: You have selected an invalid Plan (e.g., having a Free plan but selecting the API Pro option).

• Free quota exceeded: You have exceeded the free characters limit available in the free plan.

Need help? Open a ticket