Clay's AI agent is primarily used for list building, which is considered the best AI use case according to the text. It is particularly effective in creating targeted lists for specific business needs, such as prospecting companies that sell courses or online programs and are in the Training/Education sector.

To save time on list building with Clay's AI agent, you can utilize a script that automates the process of verifying whether a training company offers an online program. This approach can save over 100 hours of work that would otherwise require extensive manual checking or the hiring of virtual assistants (VAs) to perform the task.

Clay's AI agent is more efficient than other data providers for list building because it can automate the verification process that is typically very time-consuming. For example, checking if a training company also offers an online program would be nearly impossible on a one-to-one basis using platforms like LinkedIn or Apollo. Clay's AI agent can handle this task efficiently with the help of a script, eliminating the need for many hours of work by virtual assistants.