curl --request POST \
  --url https://api.example.com/api/v2/external/orgs/{slug}/members \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "jsmith@example.com",
  "role": "member"
}
'

{
  "member": {
    "user_id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "email": "<string>"
  },
  "invite": {
    "id": "<string>",
    "org_id": "<string>",
    "org_slug": "<string>",
    "org_name": "<string>",
    "email": "<string>",
    "invited_by": "<string>",
    "created_at": "2023-11-07T05:31:56Z"
  }
}