> For the complete documentation index, see [llms.txt](https://api.qvalia.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api.qvalia.io/quick-start.md).

# Quick Start

{% hint style="warning" %}
**You must first sign up for a Qvalia account, and contact Sales or Support to get access and API setup!**
{% endhint %}

### Get your API keys

Your API requests are authenticated using API keys. Any request that doesn't include an API key will return an `401` error.

**You will get your API key from Qvalia support, or the onboarding team!**

### Review the API Documentation

{% content-ref url="/pages/PHqCxQlGl0DgM5ZRIwr9" %}
[APIs](/api-documentation/apis.md)
{% endcontent-ref %}

### Make your first request

To make your first request, send an authenticated request to the `/invoices` endpoint. This will create an `invoice`.

### Create outgoing invoice

<mark style="color:green;">`POST`</mark> [`https://api.qvalia.com/transaction/{accountRegNo}/invoices/outgoing`](https://api.qvalia.com/transaction/{accountRegNo}/invoices/outgoing)

Creates a new outgoing invoice that will be sent over the Peppol network

#### Request Body

See: [https://app.gitbook.com/o/-McAY8WYeIvMOpDL\_Y9w/s/S4MbRBCDJsKGrYU4ahuP/\~/changes/2/sample-data/api-sample-data/invoice#json](/sample-data/api-sample-data/invoice.md#json)

{% tabs %}
{% tab title="200 Invoice successfully created" %}

```javascript
{
  "status": "success",
  "data": {
    "message": "invoice 12335675 sent",
    "order_id": ""
  }
}
```

{% endtab %}

{% tab title="401 Permission denied" %}

{% endtab %}
{% endtabs %}

Take a look at how you might call this method using our official libraries, or via `curl`:

{% tabs %}
{% tab title="curl" %}

```
curl --location --globoff 'https://api.qvalia.com/transaction/{accountRegNo}/invoices/outgoing' \
--data '{
  "Invoice": {}
}'
```

{% endtab %}

{% tab title="Node" %}

```javascript
const body = {
  Invoice: {...}
};

var requestOptions = {
  method: 'POST',
  body
};

await fetch('https://api.qvalia.com/transaction/{accountRegNo}/invoices/outgoing', requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

url = "https://api.qvalia.com/transaction/{accountRegNo}/invoices/outgoing"

body = "{
  \"Invoice\": {}
}"
headers = {}

response = requests.request("POST", url, headers=headers, data=body)

print(response.text)

```

{% endtab %}
{% endtabs %}


---

# Agent Instructions
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## 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, and the optional `goal` query parameter:

```
GET https://api.qvalia.io/quick-start.md?ask=<question>&goal=<endgoal>
```

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`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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