Add a SQL Server instance to DBPulse and get it reporting.
You need a DBPulse account and network access from the machine that will run the DBPulse agent to your SQL Server instance (port 1433 by default, or your instance's port).

Open Manage Servers under Administration in the sidebar (or choose + Add server on the Fleet screen). Under Register a new server, type a name for the server — for example Production SQL Server — and choose + Register.

The server then appears in the list below the form with its agent version and last-seen time. Each server also has Rotate key and Remove buttons.
The DBPulse agent reads metrics from SQL Server's system views. A dedicated login with only the permissions it needs is good practice:
msdb. If those screens are empty, grant the login read access to msdb as well.Install and start the DBPulse agent on a machine that can reach the instance, and point it at the server you registered. Use the server's key from DBPulse when the agent asks for it. If you ever need to replace the key, use Rotate key on the Manage Servers screen and update the agent.
Open Fleet. A healthy connection shows the server as Online with a recent last-seen time (seconds ago) and the agent version. If it does not appear: