OVH
Domexus provide an integration with OVH APIs to manage to your domains.
Get Access
You will need to explicit give access from the OVH portal to start using it in Domexus.
You can connect your OVH account selecting it in the registrars page in Domexus.
After that you will be redirected to OVH in order to grant access to your account as shown below:
Make sure to set Validity to "Unlimited" in order to let Domexus keep access to it!
Now you are ready!
Go to Domexus and start monitoring your domains!