What is DeepL?
DeepL is widely regarded as producing the most natural, human-sounding translations available — especially for European languages like German, French, Spanish, Italian, Polish, and Dutch. Its neural translation engine focuses on quality over breadth, supporting 29 languages with exceptional accuracy.
Quick Start
Create a DeepL account
Go to deepl.com/pro-api and sign up for a free account. You don't need to enter payment details for the free tier.
Select the Free plan
On the API pricing page, choose DeepL API Free. This gives you 500,000 characters per month at no cost.
Get your Authentication Key
After signing up, go to your account summary page. Under Authentication Key for DeepL API, copy your key.
Add the key to NewsLyfe
Open NewsLyfe Settings → Translation → DeepL. Paste your key and save.
api-free.deepl.com) than paid accounts (api.deepl.com). NewsLyfe detects this automatically based on your key — Free keys end in :fx.Advanced Options
Formality setting
DeepL supports a unique formalityparameter for some languages. You can request formal or informal translations (e.g. using "Sie" vs "du" in German). This can be set in NewsLyfe's translation settings when DeepL is active.
Glossaries
DeepL Pro users can create custom glossaries — word pairs that are always translated a specific way. Useful for brand names, technical terms, or proper nouns that should not be translated. Glossaries are managed at deepl.com/account/glossary.
Supported Languages
DeepL supports 29 languages. These include all major European languages:
Pricing & Free Tier
No credit card required. Free tier is separate from the Pro plan.
Pro also adds glossaries, formality controls, and priority access.
Troubleshooting
Authorization Failure
Your API key is invalid or has been regenerated. Check your key in deepl.com/account/summary and update it in NewsLyfe Settings.
Quota Exceeded
The monthly character limit has been reached. Free tier resets on the first of each month. Check your usage at deepl.com/account/usage.
Too Many Requests
You're sending requests too quickly. NewsLyfe automatically throttles requests, but if you're using the API in other places simultaneously, you may hit rate limits. Wait a few seconds and try again.
Wrong Endpoint
Free API keys (ending in :fx) must use the api-free.deepl.com endpoint, not api.deepl.com. NewsLyfe handles this automatically — if you see this error, verify you entered the correct key.
API Key Security
Your DeepL key is stored locally in your device and is only sent directly to DeepL's servers. NewsLyfe does not store or log your API key.