> ## Documentation Index
> Fetch the complete documentation index at: https://docs.poly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

<AgentInstructions>

## Submitting Feedback

If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:

POST https://docs.poly.ai/feedback

```json
{
  "path": "/integrations/deepl",
  "feedback": "Description of the issue"
}
```

Only submit feedback when you have something specific and actionable to report.

</AgentInstructions>

# DeepL

> Enable real-time translation during calls with DeepL integration.

Connect your PolyAI agent to [DeepL](https://www.deepl.com/) for real-time translation during conversations. Support callers in multiple languages with accurate, contextual translations.

<Note>This is a managed integration. Contact your PolyAI account manager to enable DeepL for your project.</Note>

## Capabilities

* **Real-time translation**: Translate text between supported languages during calls
* **Content localization**: Provide information in the caller's preferred language
* **Multi-language support**: Access DeepL's extensive language coverage

## Supported languages

DeepL supports translation between numerous languages including:

* English (UK/US)
* German
* French
* Spanish
* Italian
* Dutch
* Polish
* Portuguese
* Russian
* Japanese
* Chinese
* And many more

See the [DeepL Supported Languages](https://www.deepl.com/docs-api/translate-text) for the complete list.

## Getting started

### Prerequisites

* A DeepL API account (Free or Pro)
* DeepL API authentication key
* PolyAI project access

### Step 1: Create a DeepL API account

1. Go to [DeepL API](https://www.deepl.com/pro-api)
2. Sign up for a DeepL API Free or Pro plan
3. Complete account verification

### Step 2: Obtain your API key

1. Log in to your [DeepL Account](https://www.deepl.com/account)
2. Navigate to the **API Keys** section
3. Copy your authentication key

### Step 3: Provide credentials to PolyAI

Share your DeepL API key with your PolyAI account manager. It will be stored securely.

## Use cases

### Dynamic content translation

Translate Knowledge responses or system messages into the caller's language on-the-fly.

### Multi-market support

Support callers in multiple languages using a single set of Knowledge topics with translated responses.

### Cross-language handoffs

Prepare translated notes for human agents when transferring non-English speaking callers.

## Limitations

* **API quotas**: Free tier has character limits; monitor usage for high-volume deployments
* **Voice synthesis**: Translated text requires compatible TTS voices for natural delivery
* **Context preservation**: Complex domain-specific terminology may require custom glossaries

## Best practices

1. **Pre-translate common phrases**: For frequently used responses, pre-translate to reduce latency
2. **Use glossaries**: Define translations for brand names, product terms, and industry jargon
3. **Test thoroughly**: Verify translations in all target languages before deployment

## Support

For integration assistance, contact your PolyAI account manager.

For DeepL-specific questions, see the [DeepL API Documentation](https://www.deepl.com/docs-api).

## Related pages

<CardGroup cols={2}>
  <Card title="Integrations overview" href="/integrations/introduction" icon="plug">
    Browse all available integrations.
  </Card>

  <Card title="Managed services" href="/integrations/managed-services" icon="handshake">
    Other managed integrations requiring account manager setup.
  </Card>
</CardGroup>