Hi Fleet team, is that the rest api the only way to create team?

You can also create teams using a

yaml

file and

fleetctl apply

: https://fleetdm.com/docs/using-fleet/configuration-files#teams

and is Authorization the only required param of header when creating team by api?

Yes. Note that teams is a Premium feature though, so it won't work if you don't have a Fleet Premium license key applied.

may i know how to apply the license key?

You can buy Fleet Premium for a small number of hosts directly on https://fleetdm.com/pricing, or for a larger number of hosts by speaking to our sales team. Then you configure the license key in your server configuration: https://fleetdm.com/docs/deploying/configuration#license-key