> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.fygaro.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Domains and IP addresses


## Ensure Your Integration Can Always Communicate with Fygaro

To guarantee uninterrupted and secure communication between your system and Fygaro, it’s essential to properly configure network access and security settings.

### 1. Whitelist Fygaro Domains

Your integration must be able to reach Fygaro's domain names at all times. If your system uses firewalls, proxies, or DNS filtering, ensure the following domains are whitelisted:

```
fygaro.com
api.fygaro.com
```

This allows your integration to access our API, documentation, and other core services.

### 2. Verify IP Addresses for Secure API Communication

For added security, especially if your integration verifies incoming connections, ensure it's communicating with **api.fygaro.com** through the following IP addresses:

```
52.20.198.156
54.209.188.174
```

If your application restricts incoming or outgoing traffic by IP, these addresses must be added to your allowlist.

### 3. Webhook Security

If your system receives webhooks from Fygaro, verify that those incoming events are sent from a valid Fygaro IP address (listed above). This ensures the payloads are coming from us and not from an unauthorized source.

We recommend implementing signature validation in addition to IP-based filtering for an extra layer of protection.