Can we use Pulumi to enable APIs on GCP?

yes, I believe this resource can handle it https://www.pulumi.com/registry/packages/gcp/api-docs/projects/service/

Yes, but you’ll probably want to set

disableOnDestroy: false

to prevent any errors when running

pulumi destroy

. See the GCP version of the code in this article for an example: https://www.pulumi.com/challenge/startup-in-a-box/