curl --request DELETE \
  --url https://api.mapademics.com/v1/transfer-packages/{packageId}/courses/{transferCourseId} \
  --header 'X-API-Key: <api-key>'

{
  "error": "UNAUTHORIZED",
  "message": "Invalid or missing API key",
  "timestamp": "2024-01-15T10:30:00Z"
}