# E-Invoicing Belgium API Reference

## 1. API URLs to be used/whitelisted

For API requests, use the below information.

### 1.1 Sandbox (QA, Testing)

<table><thead><tr><th width="150">API Type</th><th width="323.0585821056724">Hostname</th><th width="174">IP</th><th data-type="number">Port</th></tr></thead><tbody><tr><td>API</td><td><p></p><p><a href="https://api-sandbox.eu.cleartax.com">https://api-sandbox.eu.cleartax.com</a>
</p></td><td>166.117.67.50
<br>166.117.217.112</td><td>443</td></tr></tbody></table>

{% hint style="success" %}
**Note**: The above URL is for API requests only. The corresponding frontend web application URL where you can log in and verify the data is <https://app.eu.cleartax.com/>
{% endhint %}

### 1.2. Production Environment

<table><thead><tr><th width="150">API Type</th><th width="320.0585821056724">Hostname</th><th width="180">IP</th><th data-type="number">Port</th></tr></thead><tbody><tr><td>API</td><td>
<a href="https://api-sandbox.eu.cleartax.com">https://api.eu.cleartax.com</a></td><td>166.117.67.50
<br>166.117.217.112</td><td>443</td></tr></tbody></table>

{% hint style="success" %}
**Note**: The above URL is for API requests only. The corresponding frontend web application URL where you can log in and verify the data is <https://app.eu.cleartax.com/>
{% endhint %}

## 2. SSL/TLS Certificate to be downloaded and installed

{% hint style="info" %}
**Note**: This is a multidomain SAN (Subject Alternative Name) certificate, utilized across all products within the Clear ecosystem and is common for both sandbox and production environments.
{% endhint %}

<table><thead><tr><th width="192.33331298828125">For hostname</th><th width="201.33331298828125">Valid up to</th><th data-type="files">Certificate</th></tr></thead><tbody><tr><td>*.clear.in<br>*.cleartax.in<br>*.eu.cleartax.com</td><td>24th February 2027</td><td><a href="/files/9fgUagjEdAPFG0EHtVHp">/files/9fgUagjEdAPFG0EHtVHp</a></td></tr><tr><td>Intermediate</td><td>3rd May 2031</td><td><a href="/files/BZKqjV7415c8QMe4bUFi">/files/BZKqjV7415c8QMe4bUFi</a></td></tr><tr><td>Root</td><td>1st Jan 2038</td><td><a href="/files/kT2vqB8iXQBPVSqlI98B">/files/kT2vqB8iXQBPVSqlI98B</a></td></tr></tbody></table>

**TLS Versions Supported:** TLS 1.2.

For detailed information on how to download the host, intermediate, and root certificate&#x73;**,** you can always refer to [How to get SSL Certificate](/cleartax-docs/general/how-to-get-the-ssl-certificate-of-a-host.md). Alternatively, you can also download the certificates directly from the below links.


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