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Ditching the GUI: Mastering vCenter Licensing via Command Line
We’ve all been there: staring at that persistent orange banner in the vSphere Client, reminding us that our evaluation period is ticking away. While the point-and-click method works for a single instance, real pros know that automation is the only way to scale.
If you’re looking to bypass the HTML5 interface and handle your licenses like a DevOps ninja, this guide is for you. Why Go CLI?
Efficiency is king. Whether you’re deploying a fresh SDDC or rotating keys across dozens of environments, manual entry is prone to human error. Using the command line—specifically VMware PowerCLI—allows you to bake licensing directly into your post-deployment scripts. The Secret Sauce: PowerCLI Commands
To manage licenses from the terminal, you’ll first need to establish a session with your vCenter server. powershell
# Connect to your vCenter Connect-VIServer -Server "://yourdomain.com" -User "administrator@vsphere.local" -Password "YourSecurePassword" Use code with caution. Copied to clipboard 1. Adding the Key to the Inventory
Before you can assign a license, it must exist in the vCenter license manager's inventory. You can do this by tapping into the LicenseManager view: powershell
$licKey = "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX" $licMgr = Get-View LicenseManager $licMgr.AddLicense($licKey, $null) Use code with caution. Copied to clipboard 2. Assigning the License to the Asset
Adding the key isn't enough; you have to tell vCenter to actually use it. This requires the UpdateAssignedLicense method. powershell
$licAssMgr = Get-View $licMgr.LicenseAssignmentManager $licAssMgr.UpdateAssignedLicense($global:DefaultVIServer.InstanceUuid, $licKey, $global:DefaultVIServer.Name) Use code with caution. Copied to clipboard Checking Your Work
Want to verify that everything stuck? Use these quick snippets to audit your status: View all keys: $licMgr.Licenses
Check specific host status: Get-VMHost | Select Name, LicenseKey Pro Tip: Automate at Scale vcenter license key command line
If you have a list of keys, you can wrap these commands in a foreach loop to license an entire fleet of ESXi hosts and vCenter instances in seconds. No more orange banners, no more manual clicking.
Ready to level up your vSphere automation? Check out the official VMware PowerCLI documentation for more advanced management methods.
To manage VMware vCenter license keys through the command line, you primarily use VMware PowerCLI, which is a powerful PowerShell-based interface. While you can also use Ansible or the ESXi shell for host-specific tasks, PowerCLI is the standard for managing vCenter-level assets. 1. Update vCenter License Key (PowerCLI)
To update or assign a license key to your vCenter Server instance, you must interact with the LicenseManager through the vCenter extension data. powershell
# 1. Connect to your vCenter Server $vCenter = Connect-VIServer -Server "vcenter.domain.com" -User "administrator@vsphere.local" -Password "YourPassword" # 2. Get the License Manager view $LM = Get-View ($vCenter.ExtensionData.Content.LicenseManager) # 3. Add the license key to the vCenter inventory $licenseKey = "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX" $LM.AddLicense($licenseKey, $null) # 4. Assign the license to the vCenter instance $LAM = Get-View ($LM.LicenseAssignmentManager) $LAM.UpdateAssignedLicense($vCenter.InstanceUuid, $licenseKey, $null) Use code with caution. Copied to clipboard
Verification: You can check the current vCenter license by running (Get-View $vCenter.ExtensionData.Content.About).InstanceUuid to confirm it matches the assigned ID. 2. Set License Key for ESXi Hosts (PowerCLI)
If you are managing licenses for individual ESXi hosts via vCenter, use the Set-VMHost cmdlet. For a Single Host: powershell
Set-VMHost -VMHost "esxi-01.domain.com" -LicenseKey "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX" Use code with caution. Copied to clipboard For all Hosts in a Cluster: powershell
Get-Cluster "ClusterName" | Get-VMHost | Set-VMHost -LicenseKey "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX" Use code with caution. Copied to clipboard 3. Managing Licenses via Ansible
For automation, the community.vmware.vcenter_license module allows you to add or remove keys.
- name: Add a new vCenter license key community.vmware.vcenter_license: hostname: " vcenter_hostname " username: " vcenter_username " password: " vcenter_password " license: "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX" state: present delegate_to: localhost Use code with caution. Copied to clipboard 4. ESXi Shell (Standalone Hosts Only) Ditching the GUI: Mastering vCenter Licensing via Command
For a standalone ESXi host not managed by vCenter, you can use the vim-cmd utility directly via SSH.
Command: vim-cmd vimsvc/license --set=XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Summary of Common Commands Command/Snippet Add Key to Inventory $LM.AddLicense("KEY", $null) Assign to vCenter $LAM.UpdateAssignedLicense($UUID, "KEY", $null) Assign to ESXi Set-VMHost -LicenseKey "KEY" Reset to Eval Mode Set-VMHost -LicenseKey "00000-00000-00000-00000-00000" Assign to Standalone ESXi vim-cmd vimsvc/license --set=KEY Set the License Key for a Host on vCenter Server
If you're trying to retrieve the license key itself (not just manage the license), typically you'd do this from the VMware portal or the vSphere Client.
For scripts and automation tasks, consider using APIs like the vCenter REST or SOAP APIs.
Best for: Managing a single standalone ESXi host, emergency maintenance, or scripted kickstart installations.
You must enable SSH on the ESXi host to use this method.
VMware PowerCLI, a PowerShell module, is the most robust command-line interface for vCenter license management. It provides direct access to vCenter’s licensing APIs.
Common PowerCLI commands for license management:
Add a license key to vCenter’s inventory:
Connect-VIServer vcenter.example.com
New-VMwareLicense -Key "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX"
Assign a license to a specific ESXi host:
Get-VMHost -Name esxi01.example.com | Set-VMHost -LicenseKey "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX"
View current license assignments:
Get-VMHost | Select Name, LicenseKey
Remove or replace a license:
Remove-VMwareLicense -LicenseKey "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX"
PowerCLI also supports vCenter Server Appliance (VCSA) license management, though vCenter’s own license is typically applied during deployment and rarely changed.
vim-cmd vimsvc/license --set 00000-00000-00000-00000-00000
Note: If successful, the command returns the new license type (e.g., "vSphere 7 Enterprise Plus").
vicfg CommandsvCLI is the classic command-line suite. Install it on a jump box, then use vicfg-cfgbackup not for licensing directly, but the vmware-cmd equivalents. However, for licensing, the nested license commands are better.
List license details via vCLI:
vifs --server vcenter.example.com --username administrator@vsphere.local --list /vmfs/volumes/
(Not directly useful – prefer PowerCLI)
To list all license keys installed on vCenter:
Get-VMLicense
This returns Key, Name (e.g., vSphere 7 Enterprise Plus), and Total (number of available CPU licenses).
Remove-VMLicense -LicenseKey "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX"
If a license expires and blocks new operations: Add a license key to vCenter’s inventory: Connect-VIServer
Get-VMLicense | Where-Object $_.Expiration -lt (Get-Date) | Remove-VMLicense -Confirm:$false
Disclaimer: This site does not store any files on its server. All contents are provided by non-affiliated third parties.