# Whitelisting API Calls for Self-Hosted Delivery Shield

This page lists all the external APIs accessed by Delivery Shield. For seamless operation during self-hosting, Delivery Shield must be able to communicate with these APIs. Customers should consider whitelisting the following APIs to ensure smooth functionality.

### List of the APIs

The following are the list of the APIs that needs to be whitelisted: 

[https://www.virustotal.com/api/v3/analyses/{scanId}](https://www.virustotal.com/api/v3/analyses/%7BscanId%7D)\
<https://www.virustotal.com/api/v3/urls>\
<https://api.osv.dev/v1/querybatch>\
<https://api.osv.dev/v1/vulns>\
<https://api.first.org/data/v1/epss?cve=%s>\
[https://api.openai.com](https://api.openai.com/)\ <br>