About DeepL API
DeepL offers a translation API that developers call from their own software. It is the developer side of DeepL's translation products.
What it does
The API translates text sent from an application and returns the result. Extra controls help teams keep terminology and tone consistent. Glossaries store preferred translations for specific terms, and style rule lists guide the wording of the output. Higher plans add speech-to-text and speech-to-speech options.
Key features
- Translate text from your own application
- Glossaries for consistent terms
- Style rule lists for tone and wording
- Audit logs and usage analytics
- Speech-to-text and speech-to-speech hours on higher plans
Who it's for
Developers adding translation to a website, app or support system, and localisation teams that want a consistent workflow. Growing teams with high volume will look closely at the paid tiers.
Pricing and good to know
The developer plan lets you test the API for free with a one-time credit of one million characters and one API key. The Growth plan is listed at $26 per month billed annually, plus usage charges. Enterprise plans are priced by quote. The web translator is not included in the API plans, and a fair usage policy applies.
Highlights
- Translate text from your own application
- Glossaries that keep specific terms consistent
- Style rule lists for tone and wording
- Audit logs and usage analytics for teams
- Speech-to-text and speech-to-speech hours on higher plans
