Most carriers connect to Clarus the same way — see Courier & Carrier Integrations for the general process and Create a Carrier for the setup steps.
A few carriers need particular credentials or extra configuration. Where that’s the case, you’ll find a dedicated guide here.
Available guides
DHL credentials
How to obtain the DHL SiteID, Password, and Account Number needed to integrate DHL.
Need a carrier that isn’t listed? Your account manager or the Clarus integrations team can advise on what’s required.