You can use the Cloud API to add an existing SSH key to your account or generate a new SSH key pair.

Add an existing SSH key to your account

To add an existing SSH key to your account:

1. Generate an API key if you don’t have one already.

2. Create a file named ssh-key.json that contains the necessary payload. For example:

   {
     "name": "my-new-key",
     "public_key": "ssh-ed25519 KEY COMMENT"
   }
   

3. Run the following command:

   curl -u API-KEY: https://cloud.lambdalabs.com/api/v1/ssh-keys -d @ssh-key.json -H "Content-Type: application/json" | jq .
   

Replace API-KEY with your actual API key. Don’t remove the trailing colon (:).

Generate a new SSH key pair

To generate a new SSH key pair:

1. Generate an API key if you don’t have one already.

2. Run the following command:

   curl -u API-KEY: https://cloud.lambdalabs.com/api/v1/ssh-keys -d '{ "name": "my-generated-key" }' -H "Content-Type: application/json" | jq -r '.data.private_key' > my-generated-private-key.pem
   

   Replace API-KEY with your actual API key. Don’t remove the trailing colon (:).

3. The private key for your SSH key pair will be saved as my-generated-private-key.pem.

   Run chmod 400 my-generated-private-key.pem to set the correct file permissions for your private key.