Which port to open in the firewall to use Commvault API?

  • 10 March 2023
  • 3 replies

Userlevel 2
Badge +6


An external application wants to use the Commvault API.

There is a firewall between the machine where the external application resides and the Commserve host.

I would like to know which ports, protocol, direction to open between the Commserve & VM containing the external applications.

I cannot find the information in the Commvault documentation.

Many thanks 

3 replies

Userlevel 2
Badge +7

You should be able to call the API service via port 443.


Userlevel 2
Badge +6


Thanks for your feedback but I can only see port 81 in the above link:

“You must enter the port number used by the Web Server computer.

For example:



Userlevel 4
Badge +10

Hello @brucquat 

As NVFD411 says, we only require 443 for API access to work.

You can test the connection by the following URL:


You should receive a response similar to:

WebService is Running! Monday, 13 March 2023, 11:38:14 AM