# DeepL API

{% hint style="info" %}
DeepL offers free API access that allows you to translate up to 500,000 characters per month for free.\
If you need more than that, you can purchase a DeepL API Pro subscription and it costs $5.49 / month + Usage based price
{% endhint %}

* Visit <https://www.deepl.com/pro#developer>

<figure><img src="/files/crj6q0qirYiaCyBZAwow" alt=""><figcaption></figcaption></figure>

* Complete the subscription process.
* After you have subscribed, go to your Account <https://www.deepl.com/account/summary> and under the tab with the same name you will find your API key.

<figure><img src="/files/ONjZ5p5719tBhR9KfqL2" alt=""><figcaption></figcaption></figure>

* Copy the API key, then in the VNTranslator go to Service Settings and enter your key.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.vntranslator.com/user-guide/machine-translation/deepl-api.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.