Is there an equivalent to Terraformer for Pulumi, to import all resources at once?

I’m not familiar with Terraformer, but the

pulumi import

command can take a json file containing multiple resources. https://www.pulumi.com/docs/reference/cli/pulumi_import/

But then you still need to manually build the JSON file. Terraformer is a tool for Terraform that scrape all resources from the cloud provider and builds matching TF files and state. So you can import an entire project with a single command.