# Open API

Helmut4 follows an API-first approach, where the entire UI is built on our API. In instances where you wish to automate or integrate Helmut4 with other third-party systems, our open API proves invaluable, providing an extremely powerful set of functionalities.

The link to our OpenAPI documentation can be accessed [here](http://repo.moovit24.de:8889/?urls.primaryName=Helmut4%20-%20Users)

<figure><img src="/files/sn17XBlcNsMFYrvwZ0Eh" alt=""><figcaption><p>Helmut4 API</p></figcaption></figure>

{% hint style="info" %}
If you have any questions regarding the use of our OpenAPI, please reach out to our support team via the [support portal ](/helmut4-releases/v4.8.0/support/requesting-support.md#moovits-support-portal)for assistance.\
\
Please be aware that the current accessible ***API definition*** is &#x61;***lways referring*** to the ***latest Helmut4 release***.\
<https://docs.helmut.de/helmut4-releases/getting-started/open-api>
{% endhint %}


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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.helmut.de/helmut4-releases/v4.8.0/getting-started/open-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.