Provided herein are systems and methods for automated, secure, and credential-less evaluation (e.g., grading) of data processing task results (e.g., student/learner data processing lab result or assignment completion result) in a cloud environment using a learning management system (LMS). For example, a method includes detecting verification request code received from an account of a data consumer. The verification request code includes a call to an external function and a query statement associated with a task result obtained after completion of a data processing task. The verification request code is revised with metadata to obtain revised verification request code. The call to the external function is executed to cause an evaluation of the task result. A notification of a result of the evaluation is communicated to the account of the data consumer.