curl --request GET \
  --url https://management.stytch.com/pwa/v3/projects/:project_slug/environments/:environment_slug/metrics \
  --header 'Authorization: Basic <encoded-value>'

{
  "request_id": "<string>",
  "metrics": {
    "user_count": 1,
    "organization_count": 1,
    "member_count": 1,
    "m2m_client_count": 1
  },
  "status_code": 123
}