> For the complete documentation index, see [llms.txt](https://docs.cleartax.in/cleartax-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cleartax.in/cleartax-docs/clear-finance-cloud/cfc-api-reference.md).

# CFC 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><code>https://api-sandbox.clear.in</code>
</td><td>13.248.191.113 AND 76.223.59.133</td><td>443</td></tr><tr><td>Storage</td><td><code>https://storage.clear.in</code>
</td><td>15.197.207.70 AND 3.33.240.173</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.clear.in](https://app.clear.in/)
{% 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 (for dry run)</td><td><code>https://api-sandbox.clear.in</code></td><td>13.248.191.113 AND 76.223.59.133</td><td>443</td></tr><tr><td>API</td><td><code>https://api.clear.in</code>
</td><td>13.248.191.113 AND 76.223.59.133</td><td>443</td></tr><tr><td>Storage</td><td><code>https://storage.clear.in</code>
</td><td>15.197.207.70 AND 3.33.240.173</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.clear.in/>
{% 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</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.